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Zha L, Aachmann FL, Sletta H, Arlov Ø, Zhou Q. Cellulose Nanofibrils/Alginates Double-Network Composites: Effects of Interfibrillar Interaction and G/M Ratio of Alginates on Mechanical Performance. Biomacromolecules 2024; 25:4797-4808. [PMID: 38976360 PMCID: PMC11323017 DOI: 10.1021/acs.biomac.4c00093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 06/04/2024] [Accepted: 06/21/2024] [Indexed: 07/10/2024]
Abstract
Interfibrillar phases and bonding in cellulose nanofibril (CNF)-based composites are crucial for materials performances. In this study, we investigated the influence of CNF surface characteristics, the guluronic acid/mannuronic acid ratio, and the molecular weight of alginates on the structure, mechanical, and barrier properties of CNF/alginate composite films. Three types of CNFs with varying surface charges and nanofibril dimensions were prepared from wood pulp fibers. The interfacial bonding through calcium ion cross-linking between alginate and carboxylated CNFs (TCNFs) led to significantly enhanced stiffness and strength due to the formation of an interpenetrating double network, compared to composites from alginates and CNFs with native negative or cationic surface charges. Various alginates extracted from Alaria esculenta (AE) and Laminaria hyperborea (LH) were also examined. The TCNF/AE composite, prepared from alginate with a high mannuronic acid proportion and high molecular weight, exhibited a Young's modulus of 20.3 GPa and a tensile strength of 331 MPa under dry conditions and a Young's modulus of 430 MPa and a tensile strength of 9.3 MPa at the wet state. Additionally, the TCNF/AE composite demonstrated protective properties as a barrier coating for fruit, significantly reducing browning of banana peels and weight loss of bananas stored under ambient conditions.
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Affiliation(s)
- Li Zha
- Division
of Glycoscience, Department of Chemistry, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, SE-106 91 Stockholm, Sweden
| | - Finn Lillelund Aachmann
- Norwegian
Biopolymer Laboratory (NOBIPOL), Department of Biotechnology and Food
Science, NTNU Norwegian University of Science
and Technology, Sem Sælands
vei 6/8, 7491 Trondheim, Norway
| | - Håvard Sletta
- Department
of Biotechnology and Nanomedicine, SINTEF
Industry, Richard Birkelands
vei 3B, 7034 Trondheim, Norway
| | - Øystein Arlov
- Department
of Biotechnology and Nanomedicine, SINTEF
Industry, Richard Birkelands
vei 3B, 7034 Trondheim, Norway
| | - Qi Zhou
- Division
of Glycoscience, Department of Chemistry, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, SE-106 91 Stockholm, Sweden
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2
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Zha L, Yan M, Berglund LA, Zhou Q. Tailoring the Holocellulose Fiber/Acrylic Resin Composite Interface with Hydrophobic Carboxymethyl Cellulose to Enhance Optical and Mechanical Properties. Biomacromolecules 2024; 25:3731-3740. [PMID: 38712827 PMCID: PMC11170952 DOI: 10.1021/acs.biomac.4c00295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/20/2024] [Accepted: 04/26/2024] [Indexed: 05/08/2024]
Abstract
Interface engineering is essential for cellulosic fiber-reinforced polymer composites to achieve high strength and toughness. In this study, carboxymethyl cellulose (CMC) functionalized with hydrophobic quaternary ammonium ions (QAs) were utilized to modify the interface between holocellulose fibers (HF) and acrylic resin. The wet HF/CMC papers were prepared by vacuum filtration, akin to papermaking, followed by cationic ion exchange with different hydrophobic QAs. Subsequently, the modified papers were dried, impregnated with an acrylic resin monomer, and cured to produce transparent composite films. The effect of the hydrophobic QA moieties on the structure and optical and mechanical properties of the HF/CMC/acrylic resin composites were investigated. The composite film with cetyltrimethylammonium (CTA)-functionalized CMC showed high optical transmittance (87%) with low haze (43%), while the composite film with phenyltrimethylammonium (PTMA)-functionalized CMC demonstrated high Young's modulus of 7.6 GPa and high tensile strength of 180 MPa. These properties are higher than those of the composites prepared through covalent interfacial modification strategies. The results highlighted the crucial role of hydrophobic functionalized CMCs in facilitating homogeneous resin impregnation in the HF fiber network, producing a composite with enhanced interfacial adhesion strength, increased optical transparency, and mechanical strength. This facile use of hydrophobic CMCs as interfacial compatibilizers provides an energy-efficient route for preparing transparent, thin, and flexible composite films favorable in optoelectronic applications.
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Affiliation(s)
- Li Zha
- Division
of Glycoscience, Department of Chemistry, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm SE-106 91, Sweden
| | - Max Yan
- Department
of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Stockholm SE-114 19, Sweden
| | - Lars A. Berglund
- Wallenberg
Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, Stockholm SE-100 44, Sweden
| | - Qi Zhou
- Division
of Glycoscience, Department of Chemistry, School of Engineering Sciences
in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm SE-106 91, Sweden
- Wallenberg
Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, Stockholm SE-100 44, Sweden
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3
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Zhang Z, Kong Y, Gao J, Han X, Lian Z, Liu J, Wang WJ, Yang X. Engineering strong man-made cellulosic fibers: a review of the wet spinning process based on cellulose nanofibrils. NANOSCALE 2024. [PMID: 38465763 DOI: 10.1039/d3nr06126d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
With the goal of sustainable development, manufacturing continuous high-performance fibers based on sustainable resources is an emerging research direction. However, compared to traditional synthetic fibers, plant fibers have limited length/diameter and uncontrollable natural defects, while regenerated cellulose fibers such as viscose and Lyocell suffer from inferior mechanical properties. Wet-spun fibers based on nanocelluloses especially cellulose nanofibrils (CNFs) offer superior mechanical performance since CNFs are the fundamental high-performance building blocks of plant cell walls. This review aims to summarize the progress of making CNF wet-spun fibers, emphasizing on the whole wet spinning process including spinning suspension preparation, spinning, coagulation, washing, drying and post-stretching steps. By establishing the relationships between the nano-scale assembling structure and the macroscopic changes in the CNF dope from gels to dried fibers, effective methods and strategies to improve the mechanical properties of the final fibers are analyzed and proposed. Based on this, the opportunities and challenges for potential industrial-scale production are discussed.
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Affiliation(s)
- Zihuan Zhang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, P.R. China
| | - Yuying Kong
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, P.R. China
| | - Junqi Gao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, P.R. China
| | - Xiao Han
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, P.R. China
| | - Zechun Lian
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
| | - Jiamin Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
| | - Wen-Jun Wang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, P.R. China
| | - Xuan Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P.R. China.
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, P.R. China
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4
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Zhao K, Li R, Qi W, Tian X, Zhang Z, Wang Y, Zhang Y, Zhang H, Wang W. Adjustable strength and toughness of dual cross-linked nanocellulose films via spherical cellulose as soft-phase. Carbohydr Polym 2024; 327:121708. [PMID: 38171668 DOI: 10.1016/j.carbpol.2023.121708] [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: 11/19/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 01/05/2024]
Abstract
Nanocellulose films possess numerous merits ascribing to their inherent biocompatibility, non-toxic and biodegradability properties. The potential for practical applications would be improved if their mechanical strength and toughness requirements could be met simultaneously. Herein, dual cross-linked nanocellulose (DC) film was fabricated by the treatments of chemical and physical cross-linking, which was mechanically superior to pure nanocellulose (CNF) films. To further increase the toughness of DC films, spherical cellulose (Sph) was incorporated into DC film (DC-Sph film), and analyzed under different humidity conditions (RH) (from 10 % to 90 %). The changes of functional groups of CNF, DC and DC-Sph films were detected by FTIR and XPS spectrum. The epichlorohydrin and Sph content were optimized, followed by the investigation of RH on the toughness of films. The highest tensile strength (146.6 ± 4.6 MPa) was obtained in DC film at 50 % RH, while the DC-Sph film showed the largest toughness (40.3 ± 3.7 kJ/m2) at 70 % RH. Furthermore, the possible toughening mechanism of DC-Sph film was also discussed.
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Affiliation(s)
- Kaixuan Zhao
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; Collage of Food Science and Technology, Hebei Agricultural University, Hebei 071001, China
| | - Ruonan Li
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Wenhui Qi
- Collage of Food Science and Technology, Hebei Agricultural University, Hebei 071001, China
| | - Xiaojing Tian
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Zhisheng Zhang
- Collage of Food Science and Technology, Hebei Agricultural University, Hebei 071001, China.
| | - Yang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yafei Zhang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Hongjie Zhang
- National Engineering Lab for Pulp and Paper, China National Pulp and Paper Research Institute Co., Ltd., Beijing 100102, China.
| | - Wenhang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
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5
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Lohtander T, Koso T, Huynh N, Hjelt T, Gestranius M, King AWT, Österberg M, Arola S. Bioactive Fiber Foam Films from Cellulose and Willow Bark Extract with Improved Water Tolerance. ACS OMEGA 2024; 9:8255-8265. [PMID: 38405518 PMCID: PMC10883019 DOI: 10.1021/acsomega.3c08906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/27/2024]
Abstract
Cellulose-based materials are gaining increasing attention in the packaging industry as sustainable packaging material alternatives. Lignocellulosic polymers with high quantities of surface hydroxyls are inherently hydrophilic and hygroscopic, making them moisture-sensitive, which has been retarding the utilization of cellulosic materials in applications requiring high moisture resistance. Herein, we produced lightweight all-cellulose fiber foam films with improved water tolerance. The fiber foams were modified with willow bark extract (WBE) and alkyl ketene dimer (AKD). AKD improved the water stability, while the addition of WBE was found to improve the dry strength of the fiber foam films and bring additional functionalities, that is, antioxidant and ultraviolet protection properties, to the material. Additionally, WBE and AKD showed a synergistic effect in improving the hydrophobicity and water tolerance of the fiber foam films. Nuclear magnetic resonance (NMR) spectroscopy indicated that the interactions among WBE, cellulose, and AKD were physical, with no formation of covalent bonds. The findings of this study broaden the possibilities to utilize cellulose-based materials in high-value active packaging applications, for instance, for pharmaceutical and healthcare products or as water-resistant coatings for textiles, besides bulk packaging materials.
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Affiliation(s)
- Tia Lohtander
- Biomass
Processing and Products, VTT Technical Research
Centre of Finland Ltd, Espoo FI-02044, Finland
| | - Tetyana Koso
- Biomass
Processing and Products, VTT Technical Research
Centre of Finland Ltd, Espoo FI-02044, Finland
| | - Ngoc Huynh
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo FI-02044, Finland
| | - Tuomo Hjelt
- Biomass
Processing and Products, VTT Technical Research
Centre of Finland Ltd, Espoo FI-02044, Finland
| | - Marie Gestranius
- Biomass
Processing and Products, VTT Technical Research
Centre of Finland Ltd, Espoo FI-02044, Finland
| | - Alistair W. T. King
- Biomass
Processing and Products, VTT Technical Research
Centre of Finland Ltd, Espoo FI-02044, Finland
| | - Monika Österberg
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo FI-02044, Finland
| | - Suvi Arola
- Biomass
Processing and Products, VTT Technical Research
Centre of Finland Ltd, Espoo FI-02044, Finland
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6
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Li L, Sun M, Hao B, Chen W, Zhu C, Zhang L, Shen X, Zhou X, Zhou J, Yan C, Liu X, Qian T. Dilemma of Low-Cost Filter Paper as Separator: Toughen Its Wet Strength for Robust Aqueous Zinc-Ion Batteries. J Phys Chem Lett 2024; 15:380-390. [PMID: 38175719 DOI: 10.1021/acs.jpclett.3c03113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The industrialization of aqueous zinc-ion batteries (AZIBs) is hampered by poor-performance separators. Filter paper (FP), with mature production processes and low prices, has potential as a separator. However, its swelling and decline of mechanical durability in aqueous environments make it easily punctured by dendrites. In response, wet strength promotion is proposed to toughen FP for robust AZIBs, termed wet-strengthened FP (WSFP). Due to the self-cross-linking network formed on cellulose fibers, water molecules are prevented from easily permeating and disrupting the hydrogen bonds between cellulose molecules. Moreover, the positively charged network can anchor SO42-, thus increasing the Zn2+ transference number and facilitating uniform zinc deposition. Surprisingly, the half and full cells with the WSFP separator present much more stable cycling than untreated FP and glass fiber (GF) separators. These results suggest that robust and low-cost WSFP separators provide a new avenue for the development of high-performance AZIBs with potential for commercialization.
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Affiliation(s)
- Linhe Li
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
- Zhejiang Tianneng Battery Co., Ltd., Changxing 313100, China
| | - Meizhu Sun
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Baojiu Hao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Wanhao Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Changhao Zhu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Xiaowei Shen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Xi Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jinqiu Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Chenglin Yan
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, China
| | - Xuejun Liu
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
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7
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Wang D, Shi S, Mao Y, Lei L, Fu S, Hu J. Biodegradable Dual-Network Cellulosic Composite Bioplastic Metafilm for Plastic Substitute. Angew Chem Int Ed Engl 2023; 62:e202310995. [PMID: 37899667 DOI: 10.1002/anie.202310995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/11/2023] [Accepted: 10/27/2023] [Indexed: 10/31/2023]
Abstract
With the escalating environmental and health concerns over petroleum-based plastics, sustainable and biodegradable cellulosic materials are a promising alternative to plastics, yet remain unsatisfied properties such as fragility, inflammability and water sensitivity for practical usage. Herein, we present a novel dual-network design strategy to address these limitations and fabricate a high-performance cellulosic composite bioplastic metafilm with the exceptional mechanical toughness (23.5 MJ m-3 ), flame retardance, and solvent resistance by in situ growth of cyclotriphosphazene-bridged organosilica network within bacterial cellulose matrix. The phosphorus, nitrogen-containing organosilica network, verified by the experimental and theoretical results, plays a triple action on significantly enhancing tensile strength, toughness, flame retardance and water resistance of composite bioplastic metafilm. Furthermore, cellulosic bioplastic composite metafilm demonstrates a higher maximum usage temperature (245 °C), lower thermal expansion coefficient (15.19 ppm °C-1 ), and better solvent resistance than traditional plastics, good biocompatibility and natural biodegradation. Moreover, the composite bioplastic metafilm have a good transparency of average 74 % and a high haze over 80 %, which can serve as an outstanding substrate substitute for commercial polyethylene terephthalate film to address the demand of flexible ITO films. This work paves a creative way to design and manufacture the competitive bioplastic composite to replace daily-used plastics.
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Affiliation(s)
- Dong Wang
- Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077, China
- Key Laboratory of Eco-Textile, College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122, China
| | - Shuo Shi
- Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077, China
| | - Yanyun Mao
- Key Laboratory of Eco-Textile, College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122, China
| | - Leqi Lei
- Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077, China
| | - Shaohai Fu
- Key Laboratory of Eco-Textile, College of Textile Science and Engineering, Jiangnan University, Jiangsu, 214122, China
| | - Jinlian Hu
- Department of Biomedical Engineering, City University of Hong Kong Kowloon, Hong Kong SAR, 999077, China
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8
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Niu P, Mao H, Lim KH, Wang Q, Wang WJ, Yang X. Nanocellulose-Based Hollow Fibers for Advanced Water and Moisture Management. ACS NANO 2023; 17:14686-14694. [PMID: 37459214 DOI: 10.1021/acsnano.3c02553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Natural plant fibers such as cotton have favorable performance in water and moisture management; however, they suffer from inferior processing ability due to limited diameter and length, as well as natural defects. Although commercially available regenerated cellulose fibers such as lyocell fibers can have tunable structures, they rely on the complete dissolution of cellulose molecules, including the highly crystalline parts, leading to inferior mechanical properties. Through a specially designed coaxial wet-spinning process, we prepare a type of hollow fiber using only cellulose nanofibrils (CNFs) as building blocks. It mimics cotton fibers with a lumen structure but with a tunable diameter and a long length. Moreover, such hollow fibers have superior mechanical properties with a Young's modulus of 24.7 GPa and tensile strength of 341 MPa, surpassing lyocell fibers and most wet-spun CNF-based fibers. Importantly, they have 10 times higher wicking ability, wetting rate, drying rate, and maximum wetting ratio compared to lyocell fibers. Together with a superior long-term performance after 500 rounds of wetting-drying tests, such CNF-based hollow fibers are sustainable choices for advanced textile applications. And this study provides a greater understanding of nanoscale building blocks and their assembled macromaterials, which may help to reveal the magic hierarchical design of natural materials, in this case, plant fibers.
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Affiliation(s)
- Panpan Niu
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Hui Mao
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Khak Ho Lim
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Qingyue Wang
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Wen-Jun Wang
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
| | - Xuan Yang
- State Key Laboratory of Chemical Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
- Institute of Zhejiang University, Quzhou 324000, People's Republic of China
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9
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Li J, Yang F, Liu D, Han S, Li J, Sui G. Graphene composite paper synergized with micro/nanocellulose-fiber and silk fibroin for flexible strain sensor. Int J Biol Macromol 2023; 240:124439. [PMID: 37062378 DOI: 10.1016/j.ijbiomac.2023.124439] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/22/2023] [Accepted: 04/10/2023] [Indexed: 04/18/2023]
Abstract
The fabrication of uniform and strong graphene-based conductive paper is challenging due to easy aggregation and poor film formability of graphene. Herein, on the basis of good dispersing effect of nanocellulose, high content graphene (50 wt%) composite paper with micro/nanocellulose fibers and silk fibroin (SF) was manufactured via simple casting method. The synergistic effects of cellulose microfibers (CMFs), cellulose nanofibers (CNFs) and SF result in the paper with ideal combination of flexibility, electrical conductivity and mechanical strength, where CNFs, CMFs and SF act as dispersing and film forming for GNPs, dimensional stability, and interfacial binding agents, respectively. Extraordinarily, by adding SF, graphene nanosheets are tightly coated on the surface of CMFs. The composite paper shows a tensile strength of 49.29 MPa, surface resistance of 39.0-42.1 Ω and good joints bend sensing performance. Additionally, it is found that CMFs can hinder the micro-cracks from propagating during the cyclic elbow bending test. The graphene-based conductive paper is helpful for the development of smart clothing wearable biosensing devices.
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Affiliation(s)
- Jun Li
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Fei Yang
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Dongyan Liu
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.
| | - Sensen Han
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Junsheng Li
- Engineering Center of National New Raw Material Base Construction of Liaoning Province, Shenyang 110031, China
| | - Guoxin Sui
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.
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10
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Mao H, Niu P, Zhang Z, Kong Y, Wang WJ, Yang X. High-strength and functional nanocellulose filaments made by direct wet spinning from low concentration suspensions. Carbohydr Polym 2023; 313:120881. [PMID: 37182934 DOI: 10.1016/j.carbpol.2023.120881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/13/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023]
Abstract
Continuous filaments obtained through the wet spinning of nanocellulose have promising mechanical properties with sustainable features. To guarantee proper spinnability for wet spinning, freshly made cellulose nanofibril (CNF) suspension needs to be concentrated to have a concentration above 1 wt%, resulting in energy- and time-consuming, and inferior mechanical properties of the final filaments owing to decreasing the CNF alignment against shear flows. In this study, a CNF spinning suspension at a low concentration (0.4 wt%) can be used right after the fibrillation process without further treatments. The effects of the concentration and re-concentrating process are studied by carefully characterizing the rheological behavior and filament solidification processes, which provides more fundamental understandings on the spinnability and CNF network formation of such colloidal CNF suspensions. Combined with a post stretching process, the final dried CNF filaments have superior mechanical properties with Young's modulus and tensile strength of 35 GPa and 567 MPa, surpassing most literature data. Moreover, different functional particles can be easily incorporated to prepare functional filaments. With facile preparation and superior properties, these CNF filaments may be suitable for advanced composite filler and special textile applications.
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11
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Yang X, Li L, Nishiyama Y, Reid MS, Berglund LA. Processing strategy for reduced energy demand of nanostructured CNF/clay composites with tailored interfaces. Carbohydr Polym 2023; 312:120788. [PMID: 37059528 DOI: 10.1016/j.carbpol.2023.120788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/01/2023] [Accepted: 03/04/2023] [Indexed: 03/13/2023]
Abstract
Nacre-mimicking nanocomposites based on colloidal cellulose nanofibrils (CNFs) and clay nanoparticles show excellent mechanical properties, yet processing typically involves preparation of two colloids followed by a mixing step, which is time- and energy-consuming. In this study, a facile preparation method using low energy kitchen blenders is reported in which CNF disintegration, clay exfoliation and mixing carried out in one step. Compared to composites made from the conventional method, the energy demand is reduced by about 97 %; the composites also show higher strength and work to fracture. Colloidal stability, CNF/clay nanostructure, and CNF/clay orientation are well characterized. The results suggest favorable effects from hemicellulose-rich, negatively charged pulp fibers and corresponding CNFs. CNF disintegration and colloidal stability are facilitated with substantial CNF/clay interfacial interaction. The results show a more sustainable and industrially relevant processing concept for strong CNF/clay nanocomposites.
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12
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Zhang C, Wang M, Lin X, Tao S, Wang X, Chen Y, Liu H, Wang Y, Qi H. Holocellulose nanofibrils assisted exfoliation of boron nitride nanosheets for thermal management nanocomposite films. Carbohydr Polym 2022; 291:119578. [DOI: 10.1016/j.carbpol.2022.119578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/26/2022] [Accepted: 05/03/2022] [Indexed: 11/02/2022]
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13
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A bioinspired, strong, all-natural, superhydrophobic cellulose-based straw. Int J Biol Macromol 2022; 220:910-919. [PMID: 35998858 DOI: 10.1016/j.ijbiomac.2022.08.118] [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: 05/26/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 11/23/2022]
Abstract
The promotion of cellulose-based paper straws is one of the important ways to improve white pollution nowadays. However, developing composite straws that are simultaneously highly biocompatible, safe, and non-toxic and that overcome the low water stability and physical strength problems caused by the inherent hydrophilicity of the raw material cellulose has become an important challenge in the development process. In this study, a new all-natural superhydrophobic straw (CFS) made of a composite of cellulose nanofibers and stearic acid was introduced. Stearic acid is a saturated fatty acid derived from plant and animal oils. Inspired by the specific hydrophobicity of sugarcane cane peel, a green straw with both superhydrophobicity (water contact angle up to 153°) and remarkable mechanical strength (tensile strength up to 67.15 MPa) was developed by controlling the hydrophobic modification conditions of stearic acid through solvent vaporization. Furthermore, the composite straws under wet conditions had lower water absorption and exhibited excellent wet tensile strength compared to commercial paper straws. In addition, the composite straw without the addition of chemical binders avoids the defects of non-renewable products, fits into the global green development concept, and brings new strategies for the development of cellulose-based materials.
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14
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Xiang N, Yao Y, Yuen JSK, Stout AJ, Fennelly C, Sylvia R, Schnitzler A, Wong S, Kaplan DL. Edible films for cultivated meat production. Biomaterials 2022; 287:121659. [PMID: 35839585 DOI: 10.1016/j.biomaterials.2022.121659] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/30/2022] [Accepted: 06/24/2022] [Indexed: 11/17/2022]
Abstract
Biomaterial scaffolds are critical components in cultivated meat production for enabling cell adhesion, proliferation, differentiation and orientation. Currently, there is limited information on the fabrication of edible/biodegradable scaffolds for cultivated meat applications. In the present work, several abundant, naturally derived biomaterials (gelatin, soy, glutenin, zein, cellulose, alginate, konjac, chitosan) were fabricated into films without toxic cross-linking or stabilizing agents. These films were investigated for support of the adhesion, proliferation and differentiation of murine and bovine myoblasts. These biomaterials supported cell viability, and the protein-based films showed better cell adhesion than the polysaccharide-based films. Surface patterns induced cell alignment and guided myoblast differentiation and organization on the glutenin and zein films. The mechanical properties of the protein films were also assessed and suggested that a range of properties can be achieved to meet food-related goals. Overall, based on adherence, proliferation, differentiation, mechanics, and material availability, protein-based films, particularly glutenin and zein, showed the most promise for cultivated meat applications. Ultimately, this work presents a comparison of suitable biomaterials for cultivated meat applications and suggests future efforts to optimize scaffolds for efficacy and cost.
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Affiliation(s)
- Ning Xiang
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, USA, 02155
| | - Ya Yao
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, USA, 02155
| | - John S K Yuen
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, USA, 02155
| | - Andrew J Stout
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, USA, 02155
| | - Colin Fennelly
- MilliporeSigma, Inc., 400 Summit Drive, Burlington, MA, USA, 1803
| | - Ryan Sylvia
- MilliporeSigma, Inc., 400 Summit Drive, Burlington, MA, USA, 1803
| | | | - Shou Wong
- MilliporeSigma, Inc., 400 Summit Drive, Burlington, MA, USA, 1803
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, USA, 02155.
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15
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Aoki D, Lossada F, Hoenders D, Ajiro H, Walther A. Efficient Softening and Toughening Strategies of Cellulose Nanofibril Nanocomposites Using Comb Polyurethane. Biomacromolecules 2022; 23:1693-1702. [PMID: 35362317 DOI: 10.1021/acs.biomac.1c01625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cellulose nanofibrils (CNFs) have attracted attention as building blocks for sustainable materials owing to their high performance and the advantages of their abundant natural resources. Bioinspired CNF/polymer nanocomposites, consisting of a soft polymer phase and a high fraction (>50 wt %) of CNF reinforcement, have been focused on excellent mechanical properties, including Young's modulus, mechanical strength, and toughness, mimicking the energy dissipation system in nature. However, efficient softening and toughening with a small amount of the soft phase is still a challenge because a large amount of the polymer phase (nearly 50%) is still required to provide ductility and toughness. Here, we describe a topological strategy in the polymer phase for efficient toughening of bioinspired CNF nanocomposites with a water-soluble comb polyurethane (PU). The comb PU provided higher elongation at break and more efficient flexibility for the nanocomposite than the linear PU, even at a small content. Moreover, CNF nanocomposites with 30 wt % of PU content and tetrabutylammonium as bulky counterions showed enhanced toughness (180% higher) and strain at break (250% higher) when compared to pure CNF due to the promotion of slippage between nanofibrils. Scanning electron microscopy (SEM) images of the fracture surface for CNF/comb PU nanocomposites displayed the pull-out of mesoscale layers and nanofibrils, supporting that the comb topology promotes the slippage between fibrils. Furthermore, the rheological study revealed that the comb PU has an entanglement plateau modulus lower than linear PU by 1 order of magnitude, related to the loosened entanglements. Our study establishes an efficient softening and toughening strategy while using small amounts of polymer phase addition, promoting interfibrillar slippage with the loosely entangled comb PU phase.
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Affiliation(s)
- Daisuke Aoki
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Francisco Lossada
- Department of Chemistry, A3BMS Lab-Active, Adaptive and Autonomous Bioinspired Material Systems, 55128 Mainz, Germany
| | - Daniel Hoenders
- Department of Chemistry, A3BMS Lab-Active, Adaptive and Autonomous Bioinspired Material Systems, 55128 Mainz, Germany
| | - Hiroharu Ajiro
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Andreas Walther
- Department of Chemistry, A3BMS Lab-Active, Adaptive and Autonomous Bioinspired Material Systems, 55128 Mainz, Germany
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16
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Li L, Maddalena L, Nishiyama Y, Carosio F, Ogawa Y, Berglund LA. Recyclable nanocomposites of well-dispersed 2D layered silicates in cellulose nanofibril (CNF) matrix. Carbohydr Polym 2022; 279:119004. [PMID: 34980351 DOI: 10.1016/j.carbpol.2021.119004] [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: 09/20/2021] [Revised: 11/01/2021] [Accepted: 12/07/2021] [Indexed: 11/15/2022]
Abstract
Nanocomposites based on components from nature, which can be recycled are of great interest in new materials for sustainable development. The range of properties of nacre-inspired hybrids of 1D cellulose and 2D clay platelets are investigated in nanocomposites with improved nanoparticle dispersion in the starting hydrocolloid mixture. Films with a wide range of compositions are prepared by capillary force assisted physical assembly (vacuum-assisted filtration) of TEMPO-oxidized cellulose nanofibers (TOCN) reinforced by exfoliated nanoclays of three different aspect ratios: saponite, montmorillonite and mica. X-ray diffraction and transmission electron micrographs show almost monolayer dispersion of saponite and montmorillonite and high orientation parallel to the film surface. Films exhibit ultimate strength up to 573 MPa. Young's modulus exceeds 38 GPa even at high MTM contents (40-80 vol%). Optical transmittance, UV-shielding, thermal shielding and fire-retardant properties are measured, found to be very good and are sensitive to the 2D nanoplatelet dispersion.
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Affiliation(s)
- Lengwan Li
- Department of Fiber and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Lorenza Maddalena
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Alessandria Campus, Viale Teresa Michel 5, 15121 Alessandria, Italy
| | | | - Federico Carosio
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Alessandria Campus, Viale Teresa Michel 5, 15121 Alessandria, Italy
| | - Yu Ogawa
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
| | - Lars A Berglund
- Department of Fiber and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, 10044 Stockholm, Sweden.
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17
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Ding Z, Tang Y, Zhu P. Reduced graphene oxide/cellulose nanocrystal composite films with high specific capacitance and tensile strength. Int J Biol Macromol 2022; 200:574-582. [PMID: 35077747 DOI: 10.1016/j.ijbiomac.2022.01.130] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/13/2022] [Accepted: 01/19/2022] [Indexed: 11/29/2022]
Abstract
Due to the environmental degradation and energy depletion, the strategy for fabricating high-performance supercapacitor electrode materials based on graphene and nanocellulose has received great attention. Herein, an environmentally friendly reduced graphene oxide (RGO)/cellulose nanocrystal (CNC) composite conductive film was prepared using L-ascorbic acid (L-AA) as the reductant of graphene oxide (GO). Based on chemical structure analysis, L-AA was proved to be an effective reductant to remove oxygen containing groups of GO. Through microstructure observation, a unique stacking structure of CNC and RGO was observed, which could be largely attributed to the hydrogen bond interaction. Furthermore, the effect of CNC amount on the performance of RGO/CNC composite films was also systematically investigated. Particularly, the addition of CNC was found to exert a positive effect on the tensile strength, which might be mainly due to a mass of hydrogen bonds between the CNCs. Meanwhile, the RGO/CNC composite conductive film featured ideal electrical double-layer capacitive (EDLC) behavior, exhibiting a gravity specific capacitance of 222.5 F/g and tensile strength of 32.17 MPa at 20 wt% CNC content. Therefore, the RGO/CNC composite conductive films may hold great promise for environmentally friendly electrode materials of supercapacitors and flexible electrical devices.
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Affiliation(s)
- Zejun Ding
- National Engineering Laboratory of Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yanjun Tang
- National Engineering Laboratory of Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China; Pulp and Papermaking Center, Zhejiang Sci-Tech University, Hangzhou 310023, China.
| | - Peng Zhu
- National Engineering Laboratory of Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
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18
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Wang YY, Li YQ, Xue SS, Zhu WB, Wang XQ, Huang P, Fu SY. Superstrong, Lightweight, and Exceptional Environmentally Stable SiO 2@GO/Bamboo Composites. ACS APPLIED MATERIALS & INTERFACES 2022; 14:7311-7320. [PMID: 35078316 DOI: 10.1021/acsami.1c22503] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Development of lightweight structural materials from fast-growing bamboos is of great significance to building a sustainable society. However, previously developed structural bamboos by delignification combined with densification would easily fail under large external loading after exposure to water due to structure collapse, severely limiting their practical applications. Here, we demonstrate an ultrastrong and exceptional environmentally stable bamboo composite consisting of a graphene oxide (GO)/bamboo core and hierarchical SiO2 protection layer. The GO/bamboo composite exhibits ultrahigh tensile strength (641.6 MPa), superb flexural strength (428.4 MPa), and excellent toughness (17.5 MJ/m3), which are increased by about 480, 250, and 360% compared with natural bamboo, respectively. As a result, the specific tensile strength of the GO/bamboo composite is up to 513.3 MPa·cm3/g due to its low density (1.25 g/cm3), outperforming engineering structural materials such as aluminum alloys, steels, and titanium alloys. These large improvements benefit from the well-preserved bamboo scaffold and the strong hydrogen bonds between bamboo fibers and GO nanosheets. On the other hand, the SiO2@GO/bamboo composite shows superhydrophobicity due to the construction of hierarchical SiO2 layers, which endows it with outstanding water resistance. Moreover, the bamboo composite shows an ultralow coefficient of thermal expansion (≈2.3 × 10-6 K-1), indicating its excellent dimensional stability. Considering the ultrahigh mechanical performance and outstanding environmental stability, the developed lightweight SiO2@GO/bamboo composite is hopeful to be a green and sustainable structural material for practical engineering applications.
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Affiliation(s)
- You-Yong Wang
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
| | - Yuan-Qing Li
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Shan-Shan Xue
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
| | - Wei-Bin Zhu
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
| | - Xiang-Qian Wang
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
| | - Pei Huang
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Shao-Yun Fu
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
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Holocellulose nanofibrils assisted exfoliation to prepare MXene-based composite film with excellent electromagnetic interference shielding performance. Carbohydr Polym 2021; 274:118652. [PMID: 34702471 DOI: 10.1016/j.carbpol.2021.118652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/05/2021] [Accepted: 09/06/2021] [Indexed: 11/21/2022]
Abstract
A high-yield and straightforward method is proposed to obtain an electromagnetic interference (EMI) shielding film based on multilayered Ti3C2Tx (m-Ti3C2Tx). Holocellulose nanofibrils modified by sulfamic acid (SHCNF) with unique "core-shell" structure can act as a dispersant and a binder to assist in exfoliating m-Ti3C2Tx into delaminated-Ti3C2Tx (d-Ti3C2Tx) and fabricate flexible Ti3C2Tx/SHCNF composite films with a high-yield value. The "brick-and-mortar" composite films exhibit a superior electromagnetic interference (EMI) shielding effectiveness (SE) of 45.02 dB with an ultrathin thickness of 40 μm at the 12.4 GHz. Moreover, these flexible and strong integrated Ti3C2Tx/SHCNF composite films also display excellent specific EMI SE of SSE/t (4437 dB cm2 g-1) and high EMI shielding efficiency (99.996%). Therefore, the SHCNF-assisted method provides a cost-effective approach to fabricate a strong and flexible MXene-based nanocomposite films toward EMI shielding application.
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20
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Guan QF, Yang HB, Han ZM, Ling ZC, Yang KP, Yin CH, Yu SH. Plant Cellulose Nanofiber-Derived Structural Material with High-Density Reversible Interaction Networks for Plastic Substitute. NANO LETTERS 2021; 21:8999-9004. [PMID: 34665629 DOI: 10.1021/acs.nanolett.1c02315] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ubiquitous petrochemical-based plastics pose a potential threat to ecosystems. In response, bioderived and degradable polymeric materials are being developed, but their mechanical and thermal properties cannot compete with those of existing petrochemical-based plastics, especially those used as structural materials. Herein, we report a biodegradable plant cellulose nanofiber (CNF)-derived polymeric structural material with high-density reversible interaction networks between nanofibers, exhibiting mechanical and thermal properties better than those of existing petrochemical-based plastics. This all-green material has substantially improved flexural strength (∼300 MPa) and modulus (∼16 GPa) compared with those of existing petrochemical-based plastics. Its average thermal expansion coefficient is only 7 × 10-6 K-1, which is more than 10 times lower than those of petrochemical-based plastics, indicating its dimension is almost unchanged when heated, and thus, it has a thermal dimensional stability that is better than those of plastics. As a fully bioderived and degradable material, the all-green material offers a more sustainable high-performance alternative to petrochemical-based plastics.
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Affiliation(s)
- Qing-Fang Guan
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Huai-Bin Yang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Zi-Meng Han
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Zhang-Chi Ling
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Kun-Peng Yang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Chong-Han Yin
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China
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