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Construction of a Novel Substrate of Unfigured Islands-in-Sea Microfiber Synthetic Leather Based on Waste Collagen
[Image: see text] This study is to introduce waste collagen into an unfigured islands-in-sea microfiber nonwoven material, replacing the polyurethane impregnation section of the traditional manufacturing process with the collagen impregnation process. The modified collagen was first impregnated in p...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8515376/ https://www.ncbi.nlm.nih.gov/pubmed/34660969 http://dx.doi.org/10.1021/acsomega.1c03061 |
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author | Xu, Na Tao, Yanan Wang, Xuechuan Luo, Zijin |
author_facet | Xu, Na Tao, Yanan Wang, Xuechuan Luo, Zijin |
author_sort | Xu, Na |
collection | PubMed |
description | [Image: see text] This study is to introduce waste collagen into an unfigured islands-in-sea microfiber nonwoven material, replacing the polyurethane impregnation section of the traditional manufacturing process with the collagen impregnation process. The modified collagen was first impregnated in polyamide/low-density polyethylene (PA/LDPE) fiber nonwoven to form a film. Then the low-density polyethylene component was extracted and dissolved in toluene, resulting in a collagen-based microfiber nonwoven substrate. Waste collagen was first modified to introduce C=C into the molecular chain to obtain vinyl collagen (CMA), and then the following film formation conditions for CMA were studied: 73% degree of substitution (DS), 3 h cross-linking time, and 0.005–0.01 wt % initiator concentration. Then, the preparation of CMA-PA/LDPE and toluene extraction processes were investigated. The optimum toluene extraction conditions were obtained as an extraction temperature of 85 °C and an extraction time of 110 min. The properties of the nonwoven materials were compared before (CMA-PA/LDPE) and after (PA-CMA) extraction. It was found that the homogeneity, tensile strength, and static moisture permeability of the PA-CMA materials prepared by CMA with 50 and 73% DS were all superior to those of PA/LDPE. In particular, the static moisture permeability of PA-CMA (691.6 mg/10 cm(2)·24 h) increased by 36.2% compared to the microfiber synthetic leather substrate currently in the market. Using scanning electron microscopy (SEM), the continuity of a film of PA-CMA with 73% DS was observed to be better and the fibers were differentiated and relatively tighter fiber-to-fiber gap. The studied novel green process can eliminate the large amount of dimethylformamide (DMF) pollution caused by the current solvent-based polyurethane impregnation process. |
format | Online Article Text |
id | pubmed-8515376 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-85153762021-10-15 Construction of a Novel Substrate of Unfigured Islands-in-Sea Microfiber Synthetic Leather Based on Waste Collagen Xu, Na Tao, Yanan Wang, Xuechuan Luo, Zijin ACS Omega [Image: see text] This study is to introduce waste collagen into an unfigured islands-in-sea microfiber nonwoven material, replacing the polyurethane impregnation section of the traditional manufacturing process with the collagen impregnation process. The modified collagen was first impregnated in polyamide/low-density polyethylene (PA/LDPE) fiber nonwoven to form a film. Then the low-density polyethylene component was extracted and dissolved in toluene, resulting in a collagen-based microfiber nonwoven substrate. Waste collagen was first modified to introduce C=C into the molecular chain to obtain vinyl collagen (CMA), and then the following film formation conditions for CMA were studied: 73% degree of substitution (DS), 3 h cross-linking time, and 0.005–0.01 wt % initiator concentration. Then, the preparation of CMA-PA/LDPE and toluene extraction processes were investigated. The optimum toluene extraction conditions were obtained as an extraction temperature of 85 °C and an extraction time of 110 min. The properties of the nonwoven materials were compared before (CMA-PA/LDPE) and after (PA-CMA) extraction. It was found that the homogeneity, tensile strength, and static moisture permeability of the PA-CMA materials prepared by CMA with 50 and 73% DS were all superior to those of PA/LDPE. In particular, the static moisture permeability of PA-CMA (691.6 mg/10 cm(2)·24 h) increased by 36.2% compared to the microfiber synthetic leather substrate currently in the market. Using scanning electron microscopy (SEM), the continuity of a film of PA-CMA with 73% DS was observed to be better and the fibers were differentiated and relatively tighter fiber-to-fiber gap. The studied novel green process can eliminate the large amount of dimethylformamide (DMF) pollution caused by the current solvent-based polyurethane impregnation process. American Chemical Society 2021-09-28 /pmc/articles/PMC8515376/ /pubmed/34660969 http://dx.doi.org/10.1021/acsomega.1c03061 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Xu, Na Tao, Yanan Wang, Xuechuan Luo, Zijin Construction of a Novel Substrate of Unfigured Islands-in-Sea Microfiber Synthetic Leather Based on Waste Collagen |
title | Construction of a Novel Substrate of Unfigured Islands-in-Sea
Microfiber Synthetic Leather Based on Waste Collagen |
title_full | Construction of a Novel Substrate of Unfigured Islands-in-Sea
Microfiber Synthetic Leather Based on Waste Collagen |
title_fullStr | Construction of a Novel Substrate of Unfigured Islands-in-Sea
Microfiber Synthetic Leather Based on Waste Collagen |
title_full_unstemmed | Construction of a Novel Substrate of Unfigured Islands-in-Sea
Microfiber Synthetic Leather Based on Waste Collagen |
title_short | Construction of a Novel Substrate of Unfigured Islands-in-Sea
Microfiber Synthetic Leather Based on Waste Collagen |
title_sort | construction of a novel substrate of unfigured islands-in-sea
microfiber synthetic leather based on waste collagen |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8515376/ https://www.ncbi.nlm.nih.gov/pubmed/34660969 http://dx.doi.org/10.1021/acsomega.1c03061 |
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