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Li J, Duan Y, Wang Y, Zhang Y, Zhou J, Zhao W, Yu J, Zhu B, Qiao K. Microenvironment modulation of interpenetrating-type hierarchical porous foam carbon by mild-homogeneous activation for H 2 storage and CO 2 capture under ambient pressure. J Colloid Interface Sci 2024; 675:783-791. [PMID: 39002229 DOI: 10.1016/j.jcis.2024.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/15/2024]
Abstract
Currently, carbon-based porous materials for hydrogen (H2) storage and carbon dioxide (CO2) capture are mostly applied at higher pressures (30-300 bar). However, applications for H2 storage and CO2 capture under ambient pressure conditions are significant for the development of portable, household, and miniaturized H2 energy technologies. This demands a higher standard for the interface microenvironment of adsorbents. Derived from polyurethane foams (PUFs) solid waste, the hierarchical porous foam carbon with interpenetrating-type pore structures exhibits high specific surface area (SBET = 1753 m2/g), abundant oxygen and nitrogen functional groups, and a hierarchical nanopore structure (VUltra = 0.232 cm3/g, VMicro = 0.628 cm3/g and VMeso = 0.186 cm3/g) through the mild-homogeneous sonication-assisted activation process. Under the limited adsorption of pore interface microenvironment composed by hierarchical nanopore structure and dipole-induced interaction (H(Ⅱ)-H(Ⅰ)···N/O and O(Ⅱ) = C(Ⅰ) = O(Ⅱ)···N/O), it exhibits an excellent H2 storage density (2.92 wt% at 77 K, 1 bar) and CO2 capture capacity (5.28 mmol/g at 298 K, 1 bar). This research approach can serve as a reference for the dual-functional design of porous foam carbon, and promote the development of adsorption materials for CO2 capture and energy gas storage under ambient conditions.
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Affiliation(s)
- Jialin Li
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan 250061, China.
| | - Yufeifan Duan
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Yu Wang
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Ye Zhang
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Jiaqi Zhou
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan 250061, China
| | - Wei Zhao
- Citic Heavy Industries Co.,Ltd., Luoyang, Henan 471003, China
| | - Junwei Yu
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; Center for Optics Research and Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Bo Zhu
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan 250061, China.
| | - Kun Qiao
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, Shandong University, Jinan 250061, China; School of Electromechanical and Information Engineering, Shandong University, Weihai, Shandong 264209, China.
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Silvano S, Moimare P, Gryshchuk L, Barak-Kulbak E, Recupido F, Lama GC, Boggioni L, Verdolotti L. Synthesis of bio-polyol-functionalized nanocrystalline celluloses as reactive/reinforcing components in bio-based polyurethane foams by homogeneous environment modification. Int J Biol Macromol 2024; 278:135282. [PMID: 39256128 DOI: 10.1016/j.ijbiomac.2024.135282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 08/05/2024] [Accepted: 09/01/2024] [Indexed: 09/12/2024]
Abstract
Nanocrystalline Cellulose (NCC or CNC) is widely used as a filler in polymer composites due to its high specific strength, tensile modulus, aspect ratio, and sustainability. However, CNC hydrophilicity complicates its dispersion in hydrophobic polymeric matrices giving rise to aggregate structures and thus compromising its reinforcing action. CNC functionalization in a homogeneous environment, through silanization with trichloro(butyl)silane as a coupling agent and subsequent grafting with bio-based polyols, is herein investigated aiming to enhance CNC dispersibility improving the filler-matrix interaction between the hydrophobic PU and hydrophilic CNC. The modified CNCs (m_Ci) have been studied by XRD, SEM, and TGA analyses. The TGA results show that the amount of grafted polyol is strongly influenced by both its molar mass and OH number and the maximum amount of grafted polyol reaches up to 0.32 mmol per grams of functionalized CNC, within the explored conditions. The effect of different concentrations (1-3 wt%) of m_Ci on the physical, morphological, and mechanical properties of the resulting bio-based composite polyurethane foams is evaluated. Composite PU foams present compressive modulus up to 4.81 MPa and strength up to 255 kPa more than five times higher than those reinforced with unmodified CNC or with modified CNC in heterogeneous chemical environment. The improvement of mechanical properties of the examined PU foams, as a consequence of the incorporation of bio-polyols modified CNCs where polyol's OH groups interact with polyurethane precursors, could further broaden the use of these materials in building applications.
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Affiliation(s)
- Selena Silvano
- Institute of Chemical Sciences and Technologies - "G. Natta", Italian National Research Council, via A. Corti 12, 20133 Milan, Italy
| | - Pierluigi Moimare
- Institute of Chemical Sciences and Technologies - "G. Natta", Italian National Research Council, via A. Corti 12, 20133 Milan, Italy
| | - Liudmyla Gryshchuk
- Leibniz-Institut für Verbundwerkstoffe GmbH, Technische Universität, Erwin-Schrödinger, straße 58, 67663 Kaiserlauntern, Germany
| | | | - Federica Recupido
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, Piazzale E. Fermi 1, 80055 Portici, Italy
| | - Giuseppe Cesare Lama
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, Piazzale E. Fermi 1, 80055 Portici, Italy.
| | - Laura Boggioni
- Institute of Chemical Sciences and Technologies - "G. Natta", Italian National Research Council, via A. Corti 12, 20133 Milan, Italy.
| | - Letizia Verdolotti
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, Piazzale E. Fermi 1, 80055 Portici, Italy
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Shao W, Zhang X, Liang X, Tao W, Ma M, Chen S, Shi Y, He H, Zhu Y, Wang X. Cellulose Nanofiber-Based Nanocomposite Films with Efficient Electromagnetic Interference Shielding and Fire-Resistant Performance. ACS APPLIED MATERIALS & INTERFACES 2024; 16:42674-42686. [PMID: 39087650 DOI: 10.1021/acsami.4c10660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Cellulose nanofiber (CNF) has been widely used as a flexible and lightweight polymer matrix for electromagnetic shielding and thermally conductive composite films because of its excellent mechanical strength, environmental performance, and low cost. However, the lack of flame retardancy seriously hinders its further application. Herein, renewable and biomass-sourced l-arginine (AR) was used to surface-modify ammonium polyphosphate (APP) and an environmentally friendly biobased flame retardant was synthesized by the coordination of zinc sulfate heptahydrate (ZnSO4·7H2O), which was named AAZ. AAZ was deposited on the surface of CNF by electrostatic adsorption and Zn2+ complexation. The biobased compatibilizer Triton X-100 was employed to assist the exfoliation of graphene nanoplatelets (GNPs) and their dispersion in the CNF matrix. Due to the formation of a dense lamellar layer resembling a shell structure, the CNF/GNPs composite films with a tensile strength of 52 MPa were obtained via vacuum-assisted filtration. Because the phosphorus-containing group produces a protective layer of PxOy compound and promotes the formation of a carbon layer by CNF and the combustion releases ammonia gas, the fire-resistant performance of the composite films was greatly improved. Compared with the pure CNF film, the composite film exhibits 33% reduction in PHRR value and 40% reduction in THR. In addition, the CNF/GNPs composite film with 20 wt % GNPs possessed high conductivity (2079.2 S/m) and electromagnetic interference (EMI) shielding effectiveness (37 dB). The ultrathin CNF/GNPs composite films have excellent potential for use as efficient flame retardant and EMI shielding materials.
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Affiliation(s)
- Wenqin Shao
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xutao Zhang
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xiao Liang
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Wenting Tao
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Meng Ma
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
| | - Si Chen
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yanqin Shi
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Huiwen He
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yulu Zhu
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xu Wang
- College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou 310014, PR China
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Bello KO, Yan N. Mechanical and Insulation Performance of Rigid Polyurethane Foam Reinforced with Lignin-Containing Nanocellulose Fibrils. Polymers (Basel) 2024; 16:2119. [PMID: 39125147 PMCID: PMC11313736 DOI: 10.3390/polym16152119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/15/2024] [Accepted: 07/21/2024] [Indexed: 08/12/2024] Open
Abstract
Isocyanates are critical components that affect the crosslinking density and structure of polyurethane (PU) foams. However, due to the cost and hazardous nature of the precursor for isocyanate synthesis, there is growing interest in reducing their usage in polyurethane foam production-especially in rigid PU foams (RPUF) where isocyanate is used in excess of the stoichiometric ratio. In this study, lignin-containing nanocellulose fibrils (LCNF) were explored as mechanical reinforcements for RPUF with the goal of maintaining the mechanical performance of the foam while using less isocyanate. Different amounts of LCNF (0-0.2 wt.%) were added to the RPUF made using isocyanate indices of 1.1, 1.05, 1.0, and 0.95. Results showed that LCNF served as a nucleating agent, significantly reducing cell size and thermal conductivity. LCNF addition increased the crosslinking density of RPUF, leading to enhanced compressive properties at an optimal loading of 0.1 wt.% compared to unreinforced foams at the same isocyanate index. Furthermore, at the optimal loading, LCNF-reinforced foams made at lower isocyanate indices showed comparable stiffness and strength to unreinforced foams made at higher isocyanate indices. These results highlight the reinforcing potential of LCNF in rigid polyurethane foams to improve insulation and mechanical performance with lower isocyanate usage.
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Affiliation(s)
- Kabirat O. Bello
- Graduate Department of Forestry, University of Toronto, 33 Willcocks Street, Toronto, ON M5S 3B3, Canada;
| | - Ning Yan
- Graduate Department of Forestry, University of Toronto, 33 Willcocks Street, Toronto, ON M5S 3B3, Canada;
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
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Wang L, Liu J, Shen Y, Yin Y, Ni Z, Xi J, Hu Y, Yuan Q. Preparation and Immobilization Mechanism on a Novel Composite Carrier PDA-CF/PUF to Improve Cells Immobilization and Xylitol Production. Foods 2024; 13:1911. [PMID: 38928852 PMCID: PMC11202654 DOI: 10.3390/foods13121911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
The preparation of a novel composite carrier of polydopamine-modified carbon fiber/polyurethane foam (PDA-CF/PUF) was proposed to improve cell immobilization and the fermentation of xylitol, which is an important food sweetener and multifunctional food additive. Candida tropicalis was immobilized on the composite carrier by adsorption and covalent binding. The properties and immobilization mechanism of the composite carrier and its effect on immobilized cells were investigated. It showed that the modification of PDA enhanced the loading of CF on the PUF surface and the adhesion of cells on the composite carrier surface. Also, the biocompatibility of carriers to cells was improved. In addition, the introduction of PDA increased the active groups on the surface of the carrier, enhanced the hydrophilicity, promoted the cells immobilization, and increased the xylitol yield. It was also found that expression of the related gene XYL1 in cells was significantly increased after the immobilization of the PDA-CF/PUF composite carrier during the fermentation. The PDA-CF/PUF was an immobilized carrier with the excellent biocompatibility and immobilization performance, which has great development potential in the industrial production of xylitol.
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Affiliation(s)
- Le Wang
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Jianguang Liu
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Yan Shen
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Yanli Yin
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Zifu Ni
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Jun Xi
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yuansen Hu
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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6
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Farraj Y, Kanner A, Magdassi S. E-Textile by Printing an All-through Penetrating Copper Complex Ink. ACS APPLIED MATERIALS & INTERFACES 2023; 15:21651-21658. [PMID: 37075249 PMCID: PMC10165605 DOI: 10.1021/acsami.3c02242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Wearable electronics is an emerging field in academics and industry, in which electronic devices, such as smartwatches and sensors, are printed or embedded within textiles. The electrical circuits in electronics textile (e-textile) should withstand many cycles of bending and stretching. Direct printing of conductive inks enables the patterning of electrical circuits; however, while using conventional nanoparticle-based inks, printing onto the fabric results in a thin layer of a conductor, which is not sufficiently robust and impairs the reliability required for practical applications. Here, we present a new process for fabricating robust stretchable e-textile using a thermodynamically stable, solution-based copper complex ink, which is capable of full penetrating the fabric. After printing on knitted stretchable fabrics, they were heated, and the complex underwent an intermolecular self-reduction reaction. The continuously formed metallic copper was used as a seed layer for electroless plating (EP) to form highly conductive circuits. It was found that the stretching direction has a significant role in resistivity. This new approach enables fabricating e-textiles with high stretchability and durability, as demonstrated for wearable gloves, toward printing functional e-textile.
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Affiliation(s)
- Yousef Farraj
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - Aviad Kanner
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - Shlomo Magdassi
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
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Preventing the Collapse Behavior of Polyurethane Foams with the Addition of Cellulose Nanofiber. Polymers (Basel) 2023; 15:polym15061499. [PMID: 36987278 PMCID: PMC10058122 DOI: 10.3390/polym15061499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/14/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
Polyurethane foam manufacturing depends on its materials and processes. A polyol that contains primary alcohol is very reactive with isocyanate. Sometimes, this may cause unexpected problems. In this study, a semi-rigid polyurethane foam was fabricated; however, its collapse occurred. The cellulose nanofiber was fabricated to solve this problem, and a weight ratio of 0.25, 0.5, 1, and 3% (based on total parts per weight of polyols) of the nanofiber was added to the polyurethane foams. The effect of the cellulose nanofiber on the polyurethane foams’ rheological, chemical, morphological, thermal, and anti-collapse performances was analyzed. The rheological analysis showed that 3 wt% of the cellulose nanofiber was unsuitable because of the aggregation of the filler. It was observed that the addition of the cellulose nanofiber showed the improved hydrogen bonding of the urethane linkage, even if it was not chemically reacted with the isocyanate groups. Moreover, due to the nucleating effect of the cellulose nanofiber, the average cell area of the produced foams decreased according to the amount of the cellulose nanofiber present, and the average cell area especially was reduced about five times when it contained 1 wt% more of the cellulose nanofiber than the neat foam. Although the thermal stability declined slightly, the glass transition temperature shifted from 25.8 °C to 37.6, 38.2, and 40.1 °C by when the cellulose nanofiber increased. Furthermore, the shrinkage ratio after 14 days from the foaming (%shrinkage) of the polyurethane foams decreased 15.4 times for the 1 wt% cellulose nanofiber polyurethane composite.
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Morsy M, Abdel-Salam AI, Gomaa I, Moustafa H, Kalil H, Helal A. Highly Efficient Photocatalysts for Methylene Blue Degradation Based on a Platform of Deposited GO-ZnO Nanoparticles on Polyurethane Foam. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010108. [PMID: 36615302 PMCID: PMC9822506 DOI: 10.3390/molecules28010108] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
The demand for reactive dyes in industries has increased rapidly in recent years, and producing a large quantity of dye-containing effluent waste contaminates soils and water streams. Current efforts to remove these harmful dyes have focused on utilizing functionalized nanomaterials. A 3D polyurethane foam loaded with reduced graphene oxide (rGO) and ZnO nanocomposite (PUF/rGO/ZnO) has been proposed as an efficient structural design for dye degradation under the influence of visible light. The proposed structure was synthesized using a hydrothermal route followed by microwave irradiation. The resultant 3D PUF/rGO/ZnO was examined and characterized by various techniques such as XRD, FTIR, SEM, EDAX, BET, and UV-visible spectroscopy. SEM data illustrated that a good dispersion and embedment of the rGO/ZnO NPs within the PUF matrix occurred. The adsorption capacity for neat PUF showed that around 20% of the Methylene blue (MB) dye was only adsorbed on its surface. However, it was found that an exceptional adsorption capacity for MB degradation was observed when the rGO/ZnO NPs inserted into the PUF, which initially deteriorated to ~ 70 % of its initial concentration. Notably, the MB dye was completely degraded within 3 h.
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Affiliation(s)
- Mohamed Morsy
- Building Physics and Environment Institute, Housing & Building National Research Center (HBRC), Dokki, Giza 12311, Egypt
- Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE), Suez Desert Road, El-Sherouk City, Cairo 11837, Egypt
- Correspondence: author: (M.M.); (H.K.)
| | - Ahmed I. Abdel-Salam
- Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE), Suez Desert Road, El-Sherouk City, Cairo 11837, Egypt
| | - Islam Gomaa
- Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE), Suez Desert Road, El-Sherouk City, Cairo 11837, Egypt
| | - Hesham Moustafa
- Department of Polymer Metrology & Technology, National Institute of Standards (NIS), Tersa Street, El Ha-ram, P.O. Box 136, Giza 12211, Egypt
- Bioanalysis Laboratory, National Institute of Standards (NIS), Tersa Street, El Haram, P.O. Box 136, Giza 12211, Egypt
| | - Haitham Kalil
- Chemistry Department, Cleveland State University, Cleveland, OH 44115, USA
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: author: (M.M.); (H.K.)
| | - Ahmed Helal
- Nanostructured Materials and Nanotechnology Division, Central Metallurgical Research and Development Institute, Helwan, Cairo 11722, Egypt
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Li J, Hu C, Arreola-Vargas J, Chen K, Yuan JS. Feedstock design for quality biomaterials. Trends Biotechnol 2022; 40:1535-1549. [PMID: 36273927 DOI: 10.1016/j.tibtech.2022.09.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 11/11/2022]
Abstract
Feedstock design is crucial for lignocellulosic biomass use. Current strategies for feedstock design cannot be readily applied to improve the quality of biomass-based materials, limiting the sustainability and economics of lignocellulosic biorefineries. Recent studies have advanced the understanding of biomass structure-property relationships and discovered several characteristics, such as molecular weight, uniformity, linkage profile, and functional groups, that are critical for manufacturing diverse quality biomaterials. These discoveries call for fundamentally different strategies for feedstock development. Such strategies need to rediscover the roles of monolignol biosynthesis enzymes and leverage lignin polymerization enzymes to achieve precise control of lignin molecular structure. These innovations could transform biomass into feedstock for high-quality biomaterials, addressing essential environmental challenges and empowering the bioeconomy.
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Affiliation(s)
- Jinghao Li
- Department of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Cheng Hu
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Jorge Arreola-Vargas
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Kainan Chen
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Joshua S Yuan
- Department of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA.
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Zhang J, Wang Q, Huang B, Xue X, Li M, Zhang W, Lu C. Flexible and High-Performance Electromagnetic Shielding Materials from Waste Polyurethane Foams. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Qunhao Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Bingxue Huang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Xiaolin Xue
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Mei Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Wei Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
- Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China
| | - Canhui Lu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
- Advanced Polymer Materials Research Center of Sichuan University, Shishi 362700, China
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12
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Ma Y, Xiao Y, Zhao Y, Bei Y, Hu L, Zhou Y, Jia P. Biomass based polyols and biomass based polyurethane materials as a route towards sustainability. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Azman Mohammad Taib MN, Hamidon TS, Garba ZN, Trache D, Uyama H, Hussin MH. Recent progress in cellulose-based composites towards flame retardancy applications. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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14
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Dias OAT, Konar S, Pakharenko V, Graziano A, Leão AL, Tjong J, Jaffer S, Sain M. Regioselective Protection and Deprotection of Nanocellulose Molecular Design Architecture: Robust Platform for Multifunctional Applications. Biomacromolecules 2021; 22:4980-4987. [PMID: 34791880 DOI: 10.1021/acs.biomac.1c00909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Regioselectively substituted nanocellulose was synthesized by protecting the primary hydroxyl group. Herein, we took advantage of the different reactivities of primary and secondary hydroxyl groups to graft large capping structures. This study mainly focuses on regioselective installation of trityl protecting groups on nanocellulose chains. The elemental analysis and nuclear magnetic resonance spectroscopy of regioselectively substituted nanofibrillated cellulose (NFC) suggested that the trityl group was successfully grafted in the primary hydroxyl group with a degree of substitution of nearly 1. Hansen solubility parameters were employed, and the binary system composed of an ionic liquid and pyridine as a base was revealed to be the optimum condition for regioselective functionalization of nanocellulose. Interestingly, the dissolution of NFC in the ionic liquid and the subsequent deprotection process of NFC substrates hardly affected the crystalline structure of NFC (3.6% decrease in crystallinity). This method may provide endless possibilities for the design of advanced engineered nanomaterials with multiple functionalities. We envisage that this protection/deprotection approach may lead to a bright future for the fabrication of multifunctional devices based on nanocellulose.
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Affiliation(s)
- Otavio Augusto Titton Dias
- Centre for Biocomposites and Biomaterials Processing, John H. Daniels Faculty of Architecture, Landscape, and Design, University of Toronto, Toronto, Ontario M5S 3B3, Canada
| | - Samir Konar
- Centre for Biocomposites and Biomaterials Processing, John H. Daniels Faculty of Architecture, Landscape, and Design, University of Toronto, Toronto, Ontario M5S 3B3, Canada.,Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S3G8, Canada
| | - Viktoriya Pakharenko
- Centre for Biocomposites and Biomaterials Processing, John H. Daniels Faculty of Architecture, Landscape, and Design, University of Toronto, Toronto, Ontario M5S 3B3, Canada
| | - Antimo Graziano
- Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Alcides Lopes Leão
- College of Agricultural Sciences, São Paulo State University (Unesp), Botucatu, São Paulo 18610307, Brazil
| | - Jimi Tjong
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S3G8, Canada
| | - Shaffiq Jaffer
- TOTAL American Services Inc., Hopkinton, Massachusetts 01748, United States
| | - Mohini Sain
- Centre for Biocomposites and Biomaterials Processing, John H. Daniels Faculty of Architecture, Landscape, and Design, University of Toronto, Toronto, Ontario M5S 3B3, Canada.,Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S3G8, Canada
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15
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Hasani Baferani A, Ohadi A, Katbab AA. Toward mechanistic understanding the effect of aspect ratio of carbon nanotubes upon different properties of polyurethane/carbon nanotube nanocomposite foam. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Abdolreza Ohadi
- Acoustics Research Laboratory, Department of Mechanical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Ali A. Katbab
- Department of Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
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16
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Anjum A, Zuber M, Zia KM, Anjum MN, Aftab W. Preparation and characterization of guar gum based polyurethanes. Int J Biol Macromol 2021; 183:2174-2183. [PMID: 34102237 DOI: 10.1016/j.ijbiomac.2021.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/25/2021] [Accepted: 06/03/2021] [Indexed: 01/07/2023]
Abstract
Guar gum (plant-based polysaccharide) is a promising candidate with immense potential. It is used as emulsifier, thickener, stabilizer, and as binding agent in many industries. In the present project, it was planned to synthesize guar gum based polyurethanes by varying the amount of guar gum. Guar gum (GG) was used along with hydroxyl-terminated polybutadiene (HTPB) as soft segment, which was then reacted with isophorone diisocyanate (IPDI) to form PU pre-polymers. In last step, these -NCO terminated pre-polymers were extended with 1,4 butane diol as chain extender. The prepared polyurethane samples were then characterized by using FTIR, solid-state 1HNMR and X-ray diffraction (XRD). Thermal behavior of the samples was studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Results indicated that the incorporation of guar gum in PU backbone improved its thermal behavior and crystallinity.
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Affiliation(s)
- Anbreen Anjum
- Department of Applied Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Mohammad Zuber
- Department of Applied Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Khalid Mahmood Zia
- Department of Chemistry, Government College University, Faisalabad 38030, Pakistan.
| | - Muhammad Naveed Anjum
- Department of Applied Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Waseem Aftab
- College of Engineering, Peking University Beijing, 100871, China
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17
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Ghasemi S, Amini EN, Tajvidi M, Kiziltas A, Mielewski DF, Gardner DJ. Flexible polyurethane foams reinforced with organic and inorganic nanofillers. J Appl Polym Sci 2021. [DOI: 10.1002/app.49983] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shokoofeh Ghasemi
- Laboratory of Renewable Nanomaterials School of Forest Resources and Advanced Structures and Composites Center, University of Maine Orono Maine USA
| | - Ezatollah Nima Amini
- Laboratory of Renewable Nanomaterials School of Forest Resources and Advanced Structures and Composites Center, University of Maine Orono Maine USA
| | - Mehdi Tajvidi
- Laboratory of Renewable Nanomaterials School of Forest Resources and Advanced Structures and Composites Center, University of Maine Orono Maine USA
| | - Alper Kiziltas
- Research and Innovation Center Ford Motor Company Dearborn Michigan USA
| | | | - Douglas J. Gardner
- School of Forest Resources and Advance Structures and Composites Center University of Maine Orono Maine USA
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18
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Park SJ, Cho SH, Seo HW, Nam JD, Suhr J. Natural cork agglomerate enabled mechanically robust rigid polyurethane foams with outstanding viscoelastic damping properties. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Shavandi A, Hosseini S, Okoro OV, Nie L, Eghbali Babadi F, Melchels F. 3D Bioprinting of Lignocellulosic Biomaterials. Adv Healthc Mater 2020; 9:e2001472. [PMID: 33103365 DOI: 10.1002/adhm.202001472] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/01/2020] [Indexed: 01/21/2023]
Abstract
The interest in bioprinting of sustainable biomaterials is rapidly growing, and lignocellulosic biomaterials have a unique role in this development. Lignocellulosic materials are biocompatible and possess tunable mechanical properties, and therefore promising for use in the field of 3D-printed biomaterials. This review aims to spotlight the recent progress on the application of different lignocellulosic materials (cellulose, hemicellulose, and lignin) from various sources (wood, bacteria, and fungi) in different forms (including nanocrystals and nanofibers in 3D bioprinting). Their crystallinity, leading to water insolubility and the presence of suspended nanostructures, makes these polymers stand out among hydrogel-forming biomaterials. These unique structures give rise to favorable properties such as high ink viscosity and strength and toughness of the final hydrogel, even when used at low concentrations. In this review, the application of lignocellulosic polymers with other components in inks is reported for 3D bioprinting and identified supercritical CO2 as a potential sterilization method for 3D-printed cellulosic materials. This review also focuses on the areas of potential development by highlighting the opportunities and unmet challenges such as the need for standardization of the production, biocompatibility, and biodegradability of the cellulosic materials that underscore the direction of future research into the 3D biofabrication of cellulose-based biomaterials.
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Affiliation(s)
- Amin Shavandi
- BioMatter–Biomass Transformation Lab (BTL), École Polytechnique de Bruxelles Université Libre de Bruxelles Avenue F.D. Roosevelt, 50‐CP 165/61 Brussels 1050 Belgium
| | - Soraya Hosseini
- Department of Chemical Engineering National Chung Cheng University Chiayi 62102 Taiwan
| | - Oseweuba Valentine Okoro
- Department of Process Engineering Stellenbosch University Private Bag X1 Matieland 7602 South Africa
| | - Lei Nie
- College of Life Sciences Xinyang Normal University Xinyang 464000 China
| | - Farahnaz Eghbali Babadi
- Bio‐Circular‐Green‐economy Technology & Engineering Center BCGeTEC Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Phayathai Road Bangkok 10330 Thailand
| | - Ferry Melchels
- Institute of Biological Chemistry, Biophysics and Bioengineering School of Engineering and Physical Sciences Heriot‐Watt University Edinburgh EH14 4AS UK
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20
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Lee T, Kim S, Kim S, Kwon NY, Rho S, Hwang DS, Kim M. Environmentally Friendly Methylcellulose-Based Binders for Active and Passive Dust Control. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50860-50869. [PMID: 33119259 DOI: 10.1021/acsami.0c15249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Particulate matter (PM) is an essential indicator to evaluate air pollution, threatening human health. Although PM control could be achieved by using a variety of polymeric materials, identifying effective and green materials remains elusive in dust control technology. Here, we have employed environmentally friendly cellulose modified by methyl side groups, such as methylcellulose (MC)-based polymers, and evaluated their PM reduction efficiency when utilized in active and passive dust control methods, such as dust suppressants and air filters, respectively. When 25 m/s wind was applied on soil treated by MC-based polymers, PM emissions were reduced 95% or 85% lower than the soil treated by only water or the other cellulose without methyl side groups. The MC-based polymer was also effectively suppressed mineral dust from a local copper mine in Arizona with approximately 50 times lower amounts than a synthetic polymer containing methyl side groups. Furthermore, when MC-based polymers have deposited on filters of commercial face masks, the average filtration efficiency improved to greater than 99% while maintaining airflow resistance. Our results present that environmentally friendly MC-based polymers can act as dust binders that effectively agglomerate air pollutants, preventing the PM emission from dust sources and the inhalation after being suspended in the air; thus, labeling them as essential materials for advanced active and passive dust control technology.
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Affiliation(s)
- Taehee Lee
- Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Sangsik Kim
- Division of Environmental Science and Engineering, POSTECH, Pohang 37673, Republic of Korea
- Division of Integrative Biosciences and Biotechnology, POSTECH, Pohang 37673, Republic of Korea
- Department of Biosystems Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Samuel Kim
- Department of Biomedical Engineering, University of Arizona, Tucson, Arizona 85721, United States
| | - Na-Yeon Kwon
- R&D Center, ANPOLY Inc., Pohang 37666, Republic of Korea
| | - Sangchul Rho
- R&D Center, ANPOLY Inc., Pohang 37666, Republic of Korea
| | - Dong Soo Hwang
- Division of Environmental Science and Engineering, POSTECH, Pohang 37673, Republic of Korea
| | - Minkyu Kim
- Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85721, United States
- Department of Biomedical Engineering, University of Arizona, Tucson, Arizona 85721, United States
- BIO5 Institute, University of Arizona, Tucson, Arizona 85721, United States
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21
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Namviriyachote N, Muangman P, Chinaroonchai K, Chuntrasakul C, Ritthidej GC. Polyurethane-biomacromolecule combined foam dressing containing asiaticoside: fabrication, characterization and clinical efficacy for traumatic dermal wound treatment. Int J Biol Macromol 2020; 143:510-520. [DOI: 10.1016/j.ijbiomac.2019.10.166] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/16/2019] [Accepted: 10/18/2019] [Indexed: 12/12/2022]
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22
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Li Z, An S, Liu Y, Hua Z, Li F, Wang X, Jing B, Tan Y. Practical Modification of Tannic Acid Polyether Demulsifier and Its Highly Efficient Demulsification for Water-in-Aging Crude Oil Emulsions. ACS OMEGA 2019; 4:20697-20707. [PMID: 31858055 PMCID: PMC6906932 DOI: 10.1021/acsomega.9b02933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
In order to break the aging crude oil (WACO) emulsion of the offshore platform more effectively, a highly active isocyanate, polyaryl polymethylene isocyanate (PAPI), was selected to modify the pilot-scale tannic acid demulsifier. In the addition of PAPI, its molecular weight and viscosity dramatically increased, while its relative solubility, hydroxyl number, and cloud point exhibited an opposite direction, showing an increase in hydrophobicity. After adding the above modified demulsifier, a remarkably improved water removal of WACO emulsion accompanied by a notable reduction of the water content in the oil phase monitored by the Karl Fischer method was observed. Demulsification on the offshore platform demonstrated that the best water removal was achieved when the proportion of PAPI is 1.5 wt %. Its demulsification efficiency reached 95.7%, which was 25.6% higher than the 76.2% of unmodified demulsifier. In addition, a positive correlation between viscoelasticity of emulsion and demulsification performance was found by only adjusting the parameters of the rheometer. This method may be utilized to characterize the demulsification performance by any rotary rheometer. The pilot-scale demulsification experiment demonstrated that the water removal can reach 98.14 vol % and residual water content was only 0.55 vol %. These results further confirmed the excellent demulsification performance of the modified demulsifier toward the WACO emulsion in production.
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Affiliation(s)
- Zhongwei Li
- Shandong
Provincial Key Laboratory of Processing and Testing Technology of
Glass & Functional Ceramics, College of Material Science and Engineering, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, People′s Republic of China
| | - Shuguo An
- School
of Chemistry and Chemical Engineering, Shandong
University, Jinan 250100, People′s Republic
of China
- Key
laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100, People′s Republic of China
| | - Yafan Liu
- Shandong
Provincial Key Laboratory of Processing and Testing Technology of
Glass & Functional Ceramics, College of Material Science and Engineering, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, People′s Republic of China
| | - Zhao Hua
- Technology
Research and Department Center of CNOOC Research Institute, State
Key Laboratory of Offshore Oil Exploitation, Beijing 100027, People′s Republic of China
| | - Fujun Li
- School
of Chemistry and Chemical Engineering, Shandong
University, Jinan 250100, People′s Republic
of China
- Key
laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100, People′s Republic of China
| | - Xiujun Wang
- Technology
Research and Department Center of CNOOC Research Institute, State
Key Laboratory of Offshore Oil Exploitation, Beijing 100027, People′s Republic of China
| | - Bo Jing
- Technology
Research and Department Center of CNOOC Research Institute, State
Key Laboratory of Offshore Oil Exploitation, Beijing 100027, People′s Republic of China
| | - Yebang Tan
- School
of Chemistry and Chemical Engineering, Shandong
University, Jinan 250100, People′s Republic
of China
- Key
laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan 250100, People′s Republic of China
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23
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Abushammala H, Mao J. A Review of the Surface Modification of Cellulose and Nanocellulose Using Aliphatic and Aromatic Mono- and Di-Isocyanates. Molecules 2019; 24:molecules24152782. [PMID: 31370227 PMCID: PMC6695919 DOI: 10.3390/molecules24152782] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 07/28/2019] [Accepted: 07/29/2019] [Indexed: 11/16/2022] Open
Abstract
Nanocellulose has been subjected to a wide range of chemical modifications towards increasing its potential in certain fields of interest. These modifications either modulated the chemistry of the nanocellulose itself or introduced certain functional groups onto its surface, which varied from simple molecules to polymers. Among many, aliphatic and aromatic mono- and di-isocyanates are a group of chemicals that have been used for a century to modify cellulose. Despite only being used recently with nanocellulose, they have shown great potential as surface modifiers and chemical linkers to graft certain functional chemicals and polymers onto the nanocellulose surface. This review discusses the modification of cellulose and nanocellulose using isocyanates including phenyl isocyanate (PI), octadecyl isocyanate (OI), toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HMDI), and their derivatives and polymers. It also presents the most commonly used nanocellulose modification strategies including their advantages and disadvantages. It finally discusses the challenges of using isocyanates, in general, for nanocellulose modification.
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Affiliation(s)
- Hatem Abushammala
- Fraunhofer Institute for Wood Research (WKI), Bienroder Weg 54E, 38108 Braunschweig, Germany.
| | - Jia Mao
- Fraunhofer Institute for Wood Research (WKI), Bienroder Weg 54E, 38108 Braunschweig, Germany
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24
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Synthesis and Acoustic Study of a New Tung Oil-Based Polyurethane Composite Foam with the Addition of Miscanthus Lutarioriparius. Polymers (Basel) 2019; 11:polym11071144. [PMID: 31277381 PMCID: PMC6680697 DOI: 10.3390/polym11071144] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/28/2019] [Accepted: 06/30/2019] [Indexed: 11/17/2022] Open
Abstract
Polyurethane foam is commonly used in the automobile industry due to its favorable acoustic performances. In this study, a new tung oil-based polyurethane composite foam (TOPUF) was prepared by a one-step method. Different forms and contents of miscanthus lutarioriparius (ML) were used in TOPUF for improving acoustic performance. Polyurethane foams were characterized by means of Fourier transform infrared and SEM. The acoustic properties and mechanical properties of TOPUF, obtained with ML, were determined and compared with pure petroleum-based polyurethane foam. The results illustrate that the modification of TOPUF with the ML has a positive effect on the acoustic and mechanical properties in comparison to the unmodified foam. TOPUF obtained with ML powders has better acoustic performance than that obtained with ML strips. The optimum acoustic performance is achieved at the filler content of 0.3 wt%. The average sound absorption coefficient and transmission loss can reach 0.518, and 19.05 dB, respectively.
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25
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Thermal Insulating and Mechanical Properties of Cellulose Nanofibrils Modified Polyurethane Foam Composite as Structural Insulated Material. FORESTS 2019. [DOI: 10.3390/f10020200] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cellulose nanofibrils (CNF) modified polyurethane foam (PUF) has great potential as a structural insulated material in wood construction industry. In this study, PUF modified with spray-dried CNF was fabricated and the physical and mechanical performance were studied. Results showed that CNF had an impact on the foam microstructure by increasing the precursor viscosity and imposing resistant strength upon foaming. In addition, the intrinsic high mechanical strength of CNF imparted an extra resistant force against cells expansion during the foaming process and formed smaller cells which reduced the chance of creating defective cells. The mechanical performance of the foam composite was significantly improved by introducing CNF into the PUF matrix. Compared with the PUF control, the specific bending strength, specific tensile strength, and specific compression strength increased up to three-fold for the CNF modified PUF. The thermal conductivity of PUF composite was mainly influenced by the closed cell size. The introduction of CNF improved thermal insulating performance, with a decreased thermal conductivity from 0.0439 W/mK to 0.02724 W/mK.
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26
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Linul E, Vălean C, Linul PA. Compressive Behavior of Aluminum Microfibers Reinforced Semi-Rigid Polyurethane Foams. Polymers (Basel) 2018; 10:E1298. [PMID: 30961223 PMCID: PMC6401878 DOI: 10.3390/polym10121298] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/18/2018] [Accepted: 11/20/2018] [Indexed: 11/16/2022] Open
Abstract
Unreinforced and reinforced semi-rigid polyurethane (PU) foams were prepared and their compressive behavior was investigated. Aluminum microfibers (AMs) were added to the formulations to investigate their effect on mechanical properties and crush performances of closed-cell semi-rigid PU foams. Physical and mechanical properties of foams, including foam density, quasi-elastic gradient, compressive strength, densification strain, and energy absorption capability, were determined. The quasi-static compression tests were carried out at room temperature on cubic samples with a loading speed of 10 mm/min. Experimental results showed that the elastic properties and compressive strengths of reinforced semi-rigid PU foams were increased by addition of AMs into the foams. This increase in properties (61.81%-compressive strength and 71.29%-energy absorption) was obtained by adding up to 1.5% (of the foam liquid mass) aluminum microfibers. Above this upper limit of 1.5% AMs (e.g., 2% AMs), the compressive behavior changes and the energy absorption increases only by 12.68%; while the strength properties decreases by about 14.58% compared to unreinforced semi-rigid PU foam. The energy absorption performances of AMs reinforced semi-rigid PU foams were also found to be dependent on the percentage of microfiber in the same manner as the elastic and strength properties.
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Affiliation(s)
- Emanoil Linul
- Department of Mechanics and Strength of Materials, Politehnica University of Timisoara, 1 Mihai Viteazu Avenue, 300222 Timisoara, Romania.
| | - Cristina Vălean
- Department of Mechanics and Strength of Materials, Politehnica University of Timisoara, 1 Mihai Viteazu Avenue, 300222 Timisoara, Romania.
| | - Petrică-Andrei Linul
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timisoara, 6 Vasile Parvan Avenue, 300223 Timisoara, Romania.
- National Institute of Research for Electrochemistry and Condensed Matter, Aurel Paunescu Podeanu Street 144, 300569 Timisoara, Romania.
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27
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Verdolotti L, Stanzione M, Khlebnikov O, Silant'ev V, Postnova I, Lavorgna M, Shchipunov Y. Dimensionally Stable Cellulose Aerogel Strengthened by Polyurethane Synthesized In Situ. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Letizia Verdolotti
- Institute of Polymers; Composites and Biomaterials; National Research Council (IPCB-CNR); P. le E. Fermi 1; 80055 Portici, NA Italy
| | - Mariamelia Stanzione
- Institute of Polymers; Composites and Biomaterials; National Research Council (IPCB-CNR); P. le E. Fermi 1; 80055 Portici, NA Italy
| | - Oleg Khlebnikov
- Institute of Chemistry; Far East Department; Russian Academy of Sciences; Vladivostok 690022 Russia
| | - Vladimir Silant'ev
- Institute of Chemistry; Far East Department; Russian Academy of Sciences; Vladivostok 690022 Russia
| | - Irina Postnova
- Institute of Chemistry; Far East Department; Russian Academy of Sciences; Vladivostok 690022 Russia
| | - Marino Lavorgna
- Institute of Polymers; Composites and Biomaterials; National Research Council (IPCB-CNR); P. le E. Fermi 1; 80055 Portici, NA Italy
| | - Yury Shchipunov
- Institute of Chemistry; Far East Department; Russian Academy of Sciences; Vladivostok 690022 Russia
- School of Natural Sciences; Far-Eastern Federal University; Vladivostok 690091 Russia
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28
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Lu P, Guo M, Yang Y, Wu M. Nanocellulose Stabilized Pickering Emulsion Templating for Thermosetting AESO Nanocomposite Foams. Polymers (Basel) 2018; 10:E1111. [PMID: 30961036 PMCID: PMC6403711 DOI: 10.3390/polym10101111] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/05/2018] [Accepted: 10/07/2018] [Indexed: 01/15/2023] Open
Abstract
Emulsion templating has emerged as an effective approach to prepare polymer-based foams. This study reports a thermosetting nanocomposite foam prepared by nanocellulose stabilized Pickering emulsion templating. The Pickering emulsion used as templates for the polymeric foams production was obtained by mechanically mixing cellulose nanocrystals (CNCs) water suspensions with the selected oil mixtures comprised of acrylated epoxidized soybean oil (AESO), 3-aminopropyltriethoxysilane (APTS), and benzoyl peroxide (BPO). The effects of the oil to water weight ratio (1:1 to 1:3) and the concentration of CNCs (1.0⁻3.0 wt %) on the stability of the emulsion were studied. Emulsions were characterized according to the emulsion stability index, droplet size, and droplet distribution. The emulsion prepared under the condition of oil to water ratio 1:1 and concentration of CNCs at 2.0 wt % showed good stability during the two-week storage period. Nanocomposite foams were formed by heating the Pickering emulsion at 90 °C for 60 min. Scanning electron microscopy (SEM) images show that the foam has a microporous structure with a non-uniform cell size that varied from 0.3 to 380 μm. The CNCs stabilized Pickering emulsion provides a versatile approach to prepare innovative functional bio-based materials.
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Affiliation(s)
- Peng Lu
- Institute of Light Industry and Food Engineering, Guangxi Key Laboratory of Clean Pulp and Papermaking and Pollution Control, Guangxi University, Nanning 530004, China.
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education/Shandong Province, Qilu University of Technology, Jinan 250353, China.
| | - Mengya Guo
- Institute of Light Industry and Food Engineering, Guangxi Key Laboratory of Clean Pulp and Papermaking and Pollution Control, Guangxi University, Nanning 530004, China.
| | - Yang Yang
- Institute of Light Industry and Food Engineering, Guangxi Key Laboratory of Clean Pulp and Papermaking and Pollution Control, Guangxi University, Nanning 530004, China.
| | - Min Wu
- Institute of Light Industry and Food Engineering, Guangxi Key Laboratory of Clean Pulp and Papermaking and Pollution Control, Guangxi University, Nanning 530004, China.
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29
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Papageorgiou GZ. Thinking Green: Sustainable Polymers from Renewable Resources. Polymers (Basel) 2018; 10:E952. [PMID: 30960877 PMCID: PMC6403878 DOI: 10.3390/polym10090952] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 08/21/2018] [Indexed: 11/16/2022] Open
Affiliation(s)
- George Z Papageorgiou
- Department of Chemistry, University of Ioannina, P.O. Box 1186, 45110 Ioannina, Greece.
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30
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Wu G, Xu X, He X, Yan Y. Preparation and Characterization of Graphene Oxide-Modified Sapium sebiferum Oil-Based Polyurethane Composites with Improved Thermal and Mechanical Properties. Polymers (Basel) 2018; 10:E133. [PMID: 30966169 PMCID: PMC6415030 DOI: 10.3390/polym10020133] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 01/28/2018] [Accepted: 01/29/2018] [Indexed: 11/17/2022] Open
Abstract
Bio-based polyurethane (PU) composites with superior thermal and mechanical properties have received wide attention. This is due to the recent rapid developments in the PU industry. In the work reported here, novel nano-composites with graphene oxide (GO)-modified Sapium sebiferum oil (SSO)-based PU has been synthesized via in situ polymerization. GO, prepared using the improved Hummers method from natural graphene (NG), and SSO-based polyol with a hydroxyl value of 211 mg KOH/g, prepared by lipase hydrolysis, were used as raw materials. The microstructures and properties of GO and the nano-composites were both characterized using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and tensile tests. The results showed that GO with its nano-sheet structure possessed a significant number of oxygen-containing functional groups at the surface. The nano-composites containing 1 wt % GO in the PU matrix (PU1) exhibited excellent comprehensive properties. Compared with those for pure PU, the glass transition temperature (Tg) and initial decomposition temperature (IDT) of the PU1 were enhanced by 14.1 and 31.8 °C, respectively. In addition, the tensile strength and Young's modulus of the PU1 were also improved by 126% and 102%, respectively, compared to the pure PU. The significant improvement in both the thermal stability and mechanical properties for PU/GO composites was attributed to the homogeneous dispersion and good compatibility of GO with the PU matrix. The improvement in the properties upon the addition of GO may be attributable to the strong interfacial interaction between the reinforcing agent and the PU matrix.
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Affiliation(s)
- Guiying Wu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xiaoling Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xin He
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Yunjun Yan
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
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