1
|
Çakıcı GT, Kaya S, Doğan SY, Solak EK. Quercetin-loaded sodium alginate/collagen/h-boron nitride potential wound dressings prepared using the Box-Behnken experimental design. Biotechnol J 2024; 19:e2300147. [PMID: 37897145 DOI: 10.1002/biot.202300147] [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: 04/01/2023] [Revised: 08/17/2023] [Accepted: 10/24/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND/AIMS Natural and synthetic biocompatible polymers have received significant attention in the pharmaceutical industry due to their rapid and effective healing properties in the wound healing process. The aim of this study was to optimize the extraction of onions, the preparation of sodium alginate/collagen/hydrogen boron nitride (NaAlg/Col/h-BN) membranes using the Box-Behnken experimental design, and determine the optimal conditions for quercetin release. The study also aimed to investigate the antimicrobial and antioxidant activities of the prepared membranes and their therapeutic properties. METHODS AND RESULTS The prepared membranes were characterized by scanning electron microscopy (SEM), fourier transform infrared (FTIR), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). Antimicrobial activities were tested against Gram-negative (Gr-) Escherichia coli ATCC 25922, Klebsiella pneumonia, Enterobacter aerogenes, Gram-positive (Gr+) Staphylococcus aureus ATCC 25923, and Candida albicans ATCC 10231 pathogens. In vitro release studies were conducted to examine the therapeutic properties of the prepared membranes. The optimum conditions for the extraction of onions and the preparation of NaAlg/Col/h-BN membranes were found to be EtOH = 75 mL, t = 2 h, T = 45°C, and NaAlg = 1.0 g, Col = 2.0 g, and h-BN = 6% wt, respectively. The prepared membranes exhibited serious antimicrobial properties against S. aureus and C. albicans. The membranes also promoted the controlled release of quercetin for 24 h in vitro, indicating their potential as a new approach in wound treatment. CONCLUSION The study concludes that quercetin-filled NaAlg/Col/h-BN membranes have promising therapeutic properties for wound healing. The membranes exhibited significant antimicrobial and antioxidant properties, and their controlled release of quercetin suggests their potential for use in wound healing applications.
Collapse
Affiliation(s)
- Gülşen Taşkın Çakıcı
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
| | - Seçil Kaya
- Department of Material and Material Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
| | - Sema Yiyit Doğan
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
| | - Ebru Kondolot Solak
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Gazi University, Ankara, Turkey
- Department of Advanced Technologies, Gazi University, Ankara, Turkey
| |
Collapse
|
2
|
Martínez-Jiménez C, Chow A, Smith McWilliams AD, Martí AA. Hexagonal boron nitride exfoliation and dispersion. NANOSCALE 2023; 15:16836-16873. [PMID: 37850487 DOI: 10.1039/d3nr03941b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Research on hexagonal boron nitride (hBN) 2-dimensional nanostructures has gained traction due to their unique chemical, thermal, and electronic properties. However, to make use of these exceptional properties and fabricate macroscopic materials, hBN often needs to be exfoliated and dispersed in a solvent. In this review, we provide an overview of the many different methods that have been used for dispersing hBN. The approaches that will be covered in this review include solvents, covalent functionalization, acids and bases, surfactants and polymers, biomolecules, intercalating agents, and thermal expansion. The properties of the exfoliated sheets obtained and the dispersions are discussed, and an overview of the work in the field throughout the years is provided.
Collapse
Affiliation(s)
| | - Alina Chow
- Department of Chemistry, Rice University, Houston, TX, 77005, USA.
| | | | - Angel A Martí
- Department of Chemistry, Rice University, Houston, TX, 77005, USA.
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX, 77005, USA
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
- Smalley-Curl Institute for Nanoscale Science and Technology, Rice University, Houston, TX, 77005, USA
| |
Collapse
|
3
|
Nguyen SA, Dong TQ, Doan MQ, Nguyen NH, Nguyen TA, Ngo XD, Pham AT, Le AT. Boosting the ultraviolet shielding and thermal retardancy properties of unsaturated polyester resin by employing electrochemically exfoliated e-GO nanosheets. RSC Adv 2023; 13:25762-25777. [PMID: 37655359 PMCID: PMC10467759 DOI: 10.1039/d3ra03762b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/18/2023] [Indexed: 09/02/2023] Open
Abstract
In this work, a series of unsaturated polyester resin (UPRs)/electrochemically exfoliated graphene oxide (e-GO) polymer nanocomposites with different ratios of e-GO (0.05, 0.1, 0.15, and 0.2 wt%) were prepared via an in situ polymerization method. The surface morphology and structural and chemical properties of the original UPR and UPR/e-GO nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and fourier transform infrared spectroscopy (FTIR). The positive influence of e-GO nanosheets on the mechanical properties, thermal stability, and anti-UV aging performance of UPR/e-GO nanocomposites was demonstrated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA). The obtained results showed that the incorporation of e-GO nanosheets within the UPR matrix, despite the addition of e-GO at as low as 0.2 wt% comprehensively improves the advanced functional properties of UPR/e-GO nanocomposites as compared to the original UPR. In addition, artificial weathering testing of quartz-based artificial stone using UPR/e-GO 0.2 wt% showed excellent UV-resistant efficiency, supporting the use of e-GO nanosheets as an additive in manufacturing the industrial-scale UPRs-based artificial quartz stone samples for real outdoor applications.
Collapse
Affiliation(s)
- Son Anh Nguyen
- Vicostone Joint Stock Company, Phenikaa Group Hanoi 10000 Vietnam
- Faculty of Biotechnology, Chemical and Environmental Engineering, Phenikaa University Hanoi 12116 Vietnam
| | - Thuc Quang Dong
- Vicostone Joint Stock Company, Phenikaa Group Hanoi 10000 Vietnam
- Faculty of Biotechnology, Chemical and Environmental Engineering, Phenikaa University Hanoi 12116 Vietnam
| | - Mai Quan Doan
- Phenikaa University Nano Institute (PHENA), Phenikaa University Hanoi 12116 Vietnam
| | - Ngoc Huyen Nguyen
- Phenikaa University Nano Institute (PHENA), Phenikaa University Hanoi 12116 Vietnam
| | - Tuan Anh Nguyen
- Phenikaa University Nano Institute (PHENA), Phenikaa University Hanoi 12116 Vietnam
| | - Xuan Dinh Ngo
- Phenikaa University Nano Institute (PHENA), Phenikaa University Hanoi 12116 Vietnam
| | - Anh-Tuan Pham
- Faculty of Biotechnology, Chemical and Environmental Engineering, Phenikaa University Hanoi 12116 Vietnam
- Faculty of Materials Science and Engineering, Phenikaa University Hanoi 12116 Vietnam
| | - Anh-Tuan Le
- Phenikaa University Nano Institute (PHENA), Phenikaa University Hanoi 12116 Vietnam
- Faculty of Materials Science and Engineering, Phenikaa University Hanoi 12116 Vietnam
| |
Collapse
|
4
|
Liu Y, Zhang L, Nie H, Sheng H, Li H. Balanced Mechanical and Biotribological Properties of Polymer Composites Reinforced by a 3D Interlocked Si 3N 4 Nanowire Membrane. ACS APPLIED MATERIALS & INTERFACES 2022; 14:56203-56212. [PMID: 36484566 DOI: 10.1021/acsami.2c19535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Polymer composites have great potential applications in the hip joint replacement, where the combinations of high mechanical strength and excellent biotribological properties are required. In this work, a well-dispersed three-dimensional (3D) silicon nitride nanowire membrane (SNm) designed as a reinforcement and brushite (Bs) served as bioactive filler are constructed into the polymer matrix, forming SNm-reinforced Bs/polymer composites (SNm-Bs/Pm). Especially, SNm could form a 3D interlocked structure, where the ultralong silicon nitride nanowires are entangled with each other. SNm could effectively facilitate the penetration of the polymer matrix and improve the cohesion strength of the polymer, thereby promoting mechanical and biotribological properties for SNm-Bs/Pm. The performances for polymer composites are optimized by increasing the layer number of preform. By comparing SNm-Bs/Pm with one-layer preform, the tensile strength of SNm-Bs/Pm with six-layer preforms reaches 83.3 MPa with an increase of 767.7%. In addition, the friction coefficient and wear rate of SNm-Bs/Pm with six-layer preforms in fetal bovine serum medium achieve 0.06 and 0.21 × 10-14 m3(N·m)-1 and decrease by 82.4 and 72.4%, respectively. The present work provides a promising methodology of preparing interlocked SNm-reinforced polymer composites with enhanced mechanical and biotribological properties that are potential for hip joint replacement applications.
Collapse
Affiliation(s)
- Yeye Liu
- State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China
| | - Leilei Zhang
- State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China
| | - Hongwen Nie
- State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China
| | - Hongchao Sheng
- Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Hejun Li
- State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China
| |
Collapse
|
5
|
Rashid MA, Liu W, Wei Y, Jiang Q. Review of intrinsically recyclable biobased epoxy thermosets enabled by dynamic chemical bonds. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2080559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Muhammad Abdur Rashid
- Center for Civil Aviation Composites, Donghua University, Shanghai, China
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, China
- Dhaka University of Engineering and Technology, Gazipur, Bangladesh
| | - Wanshuang Liu
- Center for Civil Aviation Composites, Donghua University, Shanghai, China
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, China
| | - Yi Wei
- Center for Civil Aviation Composites, Donghua University, Shanghai, China
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, China
| | - Qiuran Jiang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, China
| |
Collapse
|
6
|
|
7
|
Zhang S, Chu F, Xu Z, Zhou Y, Qiu Y, Qian L, Hu Y, Wang B, Hu W. The improvement of fire safety performance of flexible polyurethane foam by Highly-efficient P-N-S elemental hybrid synergistic flame retardant. J Colloid Interface Sci 2022; 606:768-783. [PMID: 34419816 DOI: 10.1016/j.jcis.2021.08.069] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 12/17/2022]
Abstract
Herein, three different phosphorus-containing compounds (methyl phosphoryl dichloride, phenyl phosphoryl dichloride and phenyl dichlorophosphate) were reacted with 2-aminobenzothiazole respectively, and a series of synergistic flame retardants with phosphorus, nitrogen and sulfur elements were synthesized, named MPBT, PPBT and POBT respectively. Then, they were added to prepare flame-retardant flexible polyurethane foam (FPUF). Through the analysis of thermal stability, pyrolysis, heat release and smoke release behavior, the influence of different phosphorus-containing structures on the flame-retardant performance of FPUF was studied, and their flame-retardant mechanism was explored in detail. Among them, MPBT had the highest flame retardant efficiency with the same addition amount (10 wt%). The limiting oxygen index (LOI) value of PU/10.0% MPBT reached 22.5 %, and it successfully passed the vertical burning test. Subsequently, the addition amount of MPBT was increased and the best comprehensive performance of flame-retardant FPUF was explored. The results showed that the LOI value of PU/15.0% MPBT was increased to 23.5%. As for PU/15.0% MPBT, the peak heat release rate (PHRR) was 453 KW/m2, which was reduced by 46.64 %; and the flame retardancy index (FRI) value was also increased to 6.88. At the same time, the mechanical properties of flame-retardant FPUF were studied. The tensile strength of PU/15.0% MPBT reached 170 KPa, and the permanent deformation of FPUF/10% MPBT was only 4 %, showing its excellent resilience. The above results show that this phosphorus-containing element hybrid synergistic flame retardant (MPBT) has a very good application prospect in the field of flame-retardant polymer materials.
Collapse
Affiliation(s)
- Shenghe Zhang
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Fukai Chu
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Zhoumei Xu
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Yifan Zhou
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Yong Qiu
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Lijun Qian
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Bibo Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China.
| | - Weizhao Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, PR China, Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China.
| |
Collapse
|
8
|
Du Y, Zhao G, Shi G, Wang Y, Li W, Ren S. Effect of crosslink structure on mechanical properties, thermal stability and flame retardancy of natural flavonoid based epoxy resins. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110898] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
9
|
Modification of Glass/Polyester Laminates with Flame Retardants. MATERIALS 2021; 14:ma14247901. [PMID: 34947505 PMCID: PMC8706711 DOI: 10.3390/ma14247901] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/08/2021] [Accepted: 12/16/2021] [Indexed: 11/28/2022]
Abstract
This paper presents a review of flame retardants used for glass/polyester laminates. It concerns flame retardants withdrawn from use such as compounds containing halogen atoms and flame retardants currently used in the industry, such as inorganic hydroxides, phosphorus and nitrogen-containing compounds, antimony, and boron compounds, as well as tin–zinc compounds. Attention is also drawn to the use of nanoclays and the production of nanocomposites, intumescent flame retardant systems, and mats, as well as polyhedral oligomeric silsesquioxanes. The paper discusses the action mechanism of particular flame retardants and presents their advantages and disadvantages.
Collapse
|
10
|
Xu YJ, Qu LY, Liu Y, Zhu P. An overview of alginates as flame-retardant materials: Pyrolysis behaviors, flame retardancy, and applications. Carbohydr Polym 2021; 260:117827. [DOI: 10.1016/j.carbpol.2021.117827] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 12/15/2022]
|
11
|
Ambekar RS, Deshmukh A, Suárez-Villagrán MY, Das R, Pal V, Dey S, Miller JH, Machado LD, Kumbhakar P, Tiwary CS. 2D Hexagonal Boron Nitride-Coated Cotton Fabric with Self-Extinguishing Property. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45274-45280. [PMID: 32898423 DOI: 10.1021/acsami.0c12647] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Here, we report on the fabrication of flame retardant hydrophobic cotton fabrics based on the coating with two-dimensional hexagonal boron nitride (2D hBN) nanosheets. A simple one-step solution dipping process was used to coat the fabrics by taking advantage of the strong bonding between diethylenetriamine and hBN on the cotton surface. Exposure to direct flame confirmed the improvement of the flame retardant properties of the coated cotton fabrics. In turn, removal of the flame source revealed self-extinguishing properties. Molecular dynamics simulations indicate that hBN hinders combustion by reducing the rate at which oxygen molecules reach the cotton surface. This time-saving and one-step approach for the fabrication of flame-retardant cotton fabrics offers significant advantages over other, less efficient production methods.
Collapse
Affiliation(s)
- Rushikesh S Ambekar
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Abhishek Deshmukh
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Martha Y Suárez-Villagrán
- Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, Texas 77204-5002 United States
| | - Rakesh Das
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Varinder Pal
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Satyahari Dey
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - John H Miller
- Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, Texas 77204-5002 United States
| | - Leonardo D Machado
- Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59072-970, Brazil
| | - Partha Kumbhakar
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Chandra S Tiwary
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| |
Collapse
|
12
|
Joy J, George E, Haritha P, Thomas S, Anas S. An overview of boron nitride based polymer nanocomposites. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200507] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jomon Joy
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Elssa George
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Prakashan Haritha
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Sabu Thomas
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
- International and Inter University Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
| | - Saithalavi Anas
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
- Advanced Molecular Materials Research Centre Mahatma Gandhi University Kottayam Kerala India
| |
Collapse
|
13
|
Effect of POSS-Modified Montmorillonite on Thermal, Mechanical, and Electrical Properties of Unsaturated Polyester Nanocomposites. Polymers (Basel) 2020; 12:polym12092031. [PMID: 32906616 PMCID: PMC7564685 DOI: 10.3390/polym12092031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 11/21/2022] Open
Abstract
Montmorillonite (MMT) displays excellent cohesion with an unsaturated polyester (UP) matrix to generate a material which exhibits an extensive range of commercial applications. The organic modification of MMT using polyhedral oligomeric silsesquioxanes (POSS) and the effect of POSS-MMT on the thermal, mechanical, and electrical properties of UP are reported here. Transmission electron microscopy (TEM) images were used to characterize the modification of MMT using POSS. Modified MMT (POSS-MMT) was incorporated, at different wt.% (0.5, 1, 3, 5), into UP via in-situ polymerization. The presence of POSS-MMT enhanced the characteristic properties of UP as a consequence of good dispersion in the polymer matrix. Scanning electron microscopy (SEM) images support effective POSS-MMT dispersion leading to tensile strength enhancement of a UP/POSS-MMT nanocomposite (3 wt.% POSS-MMT) by 54.7% as compared to that for unmodified UP. TGA displays a 35 °C improvement of thermal stability (10% mass loss) at 5% POSS-MMT incorporation, while the electrical conductivity is improved by 108 S/m (3 wt.% POSS-MMT) in comparison to that for unmodified UP. The conventional obstacle of UP associated with shrinkage weight loss during curing seems to be moderated with POSS-MMT incorporation (3%) resulting in a 27.8% reduction in shrinkage weight loss. These fabricated nanocomposites expand the versatility of UP as a high-performance material owing to enhancements of properties.
Collapse
|
14
|
Rationally designed functionalized black phosphorus nanosheets as new fire hazard suppression material for polylactic acid. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109194] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
15
|
Partially Exfoliated α-ZrP Reinforced Unsaturated Polyester Nanocomposites by Simultaneous Co-polymerization and Brønsted Acid–Base Strategy. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01558-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
16
|
Layer-by-layer assembled diatomite based on chitosan and ammonium polyphosphate to increase the fire safety of unsaturated polyester resins. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.01.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
17
|
Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/4273253] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Polymer materials are ubiquitous in daily life. While polymers are often convenient and helpful, their properties often obscure the fire hazards they may pose. Therefore, it is of great significance in terms of safety to study the flame retardant properties of polymers while still maintaining their optimal performance. Current literature shows that although traditional flame retardants can satisfy the requirements of polymer flame retardancy, due to increases in product requirements in industry, including requirements for durability, mechanical properties, and environmental friendliness, it is imperative to develop a new generation of flame retardants. In recent years, the preparation of modified two-dimensional nanomaterials as flame retardants has attracted wide attention in the field. Due to their unique layered structures, two-dimensional nanomaterials can generally improve the mechanical properties of polymers via uniform dispersion, and they can form effective physical barriers in a matrix to improve the thermal stability of polymers. For polymer applications in specialized fields, different two-dimensional nanomaterials have potential conductivity, high thermal conductivity, catalytic activity, and antiultraviolet abilities, which can meet the flame retardant requirements of polymers and allow their use in specific applications. In this review, the current research status of two-dimensional nanomaterials as flame retardants is discussed, as well as a mechanism of how they can be applied for reducing the flammability of polymers.
Collapse
|
18
|
Synthesis of biobased reactive hydroxyl amines by amination reaction of cardanol-based epoxy monomers. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.06.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
19
|
Chu F, Hou Y, Liu L, Qiu S, Cai W, Xu Z, Song L, Hu W. Hierarchical Structure: An effective Strategy to Enhance the Mechanical Performance and Fire Safety of Unsaturated Polyester Resin. ACS APPLIED MATERIALS & INTERFACES 2019; 11:29436-29447. [PMID: 31339293 DOI: 10.1021/acsami.9b08734] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
It is still a big challenge to prepare polymer/layered double hydroxide (LDH) composites with high performance, due to the strong agglomeration tendency of LDHs in the polymeric matrix. In this study, to avoid the agglomerated situation, the orientated LDH nanosheets were vertically grown on a ramie fabric surface, which was then embedded in unsaturated polyester resin (UPR) through the combination method of hand lay-up and vacuum bag. Due to the increased contact area and the restricted interfacial slip in the in-plane direction, the hierarchically LDH-functionalized ramie fabrics (denoted as Textile@LDH) significantly enhanced the mechanical performance of UPR composites. Then, the phosphorus- and silicon-containing coating (PSi) was used for the further improvement of the interfacial adhesion. The tensile strength of UPR/Textile@LDH@PSi composites increased by 121.67%, compared to that of neat UPR. The reinforcement mechanism was studied through analyzing the surface nano/microstructure and wetting properties of the raw and modified textiles, as well as the interfacial interaction between the ramie fabrics and UPR. Meanwhile, the thermal stability, thermal conductivity, and flame-retardant performance of ramie-reinforced UPR composites were improved. Particularly, as-prepared hierarchical Textile@LDH@PSi inhibited the heat release during the combustion process of fabric-reinforced UPR composites, and the peak heat release rate and total heat release values decreased by 36.56 and 47.57%, respectively, compared with the neat UPR/Textile composites. The suppression mechanism was further explored by analyzing the microstructure and chemical compositions of char residues. This research paved a feasible solution to improve the poor dispersion of LDHs in polymers and prepared the high-performance UPR composites with multifunctional applications.
Collapse
Affiliation(s)
- Fukai Chu
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| | - Yanbei Hou
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| | - Longxiang Liu
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| | - Shuilai Qiu
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| | - Wei Cai
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| | - Zhoumei Xu
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| | - Lei Song
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| | - Weizhao Hu
- State Key Laboratory of Fire Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P. R. China
| |
Collapse
|
20
|
Feng Y, Yuan L, Liang G, Gu A. Phosphorus‐free boron nitride/cerium oxide hybrid: A synergistic flame retardant and smoke suppressant for thermally resistant cyanate ester resin. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4675] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yuhui Feng
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Material ScienceSoochow University Suzhou China
| | - Li Yuan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Material ScienceSoochow University Suzhou China
| | - Guozheng Liang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Material ScienceSoochow University Suzhou China
| | - Aijuan Gu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Material ScienceSoochow University Suzhou China
| |
Collapse
|
21
|
Kumru B, Barrio J, Zhang J, Antonietti M, Shalom M, Schmidt BVKJ. Robust Carbon Nitride-Based Thermoset Coatings for Surface Modification and Photochemistry. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9462-9469. [PMID: 30746936 PMCID: PMC6728114 DOI: 10.1021/acsami.8b21670] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/12/2019] [Indexed: 05/12/2023]
Abstract
Herein, the convenient visible light-induced photografting of hydroxyl ethyl methacrylate onto graphitic carbon nitride (g-CN) is described, leading to well-dispersible g-CN-based precursor polymers that can be injected. Mixing with citric acid as the cross-linker and heating leads to stable thermoset coatings. The process is versatile and easy to perform, leading to g-CN-based coatings. Moreover, the coating can be further functionalized/modified via grafting of other polymer chains, and the resulting structure is useful as photocatalytic surface or as photoelectrode.
Collapse
Affiliation(s)
- Baris Kumru
- Max
Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Jesús Barrio
- Department
of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, 8410501 Beer-Sheva, Israel
| | - Jianrui Zhang
- Max
Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Markus Antonietti
- Max
Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Menny Shalom
- Department
of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, 8410501 Beer-Sheva, Israel
| | | |
Collapse
|