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Preparation of aramid-based epoxy resin from low-grade aramid

Low-grade aramid fibers, an unavoidable by-product in the industrialized process of aramid fiber production, are difficult to utilize and harmful to the environment. In this study, low-grade aramid fibers were recycled to assemble a high-quality epoxy resin through an epoxidation modification. Trigg...

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Detalles Bibliográficos
Autores principales: Yu, Changlei, Yu, Pengda, Ma, Gang, Zhou, Lequn, Deng, Fei, Wang, Fang, Zhu, Xinbao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9043422/
https://www.ncbi.nlm.nih.gov/pubmed/35492742
http://dx.doi.org/10.1039/d1ra07602g
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author Yu, Changlei
Yu, Pengda
Ma, Gang
Zhou, Lequn
Deng, Fei
Wang, Fang
Zhu, Xinbao
author_facet Yu, Changlei
Yu, Pengda
Ma, Gang
Zhou, Lequn
Deng, Fei
Wang, Fang
Zhu, Xinbao
author_sort Yu, Changlei
collection PubMed
description Low-grade aramid fibers, an unavoidable by-product in the industrialized process of aramid fiber production, are difficult to utilize and harmful to the environment. In this study, low-grade aramid fibers were recycled to assemble a high-quality epoxy resin through an epoxidation modification. Triggered by the epichlorohydrin, the molecular configuration of the low-grade aramid fibers was altered through crosslinking and chain-extension processes. bisphenol-A epoxy resin (E-51) with 5% aramid-based epoxy resin cured product exhibited improved mechanical and thermal properties, outperforming pure E-51 and pure aramid. This improvement is caused by the increased percentage of epoxide groups and flexible ether bonds. This work opens up new possibilities to maximize the reclamation of low-grade aramid fibers, which currently poses an obstacle in waste recycling.
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spelling pubmed-90434222022-04-28 Preparation of aramid-based epoxy resin from low-grade aramid Yu, Changlei Yu, Pengda Ma, Gang Zhou, Lequn Deng, Fei Wang, Fang Zhu, Xinbao RSC Adv Chemistry Low-grade aramid fibers, an unavoidable by-product in the industrialized process of aramid fiber production, are difficult to utilize and harmful to the environment. In this study, low-grade aramid fibers were recycled to assemble a high-quality epoxy resin through an epoxidation modification. Triggered by the epichlorohydrin, the molecular configuration of the low-grade aramid fibers was altered through crosslinking and chain-extension processes. bisphenol-A epoxy resin (E-51) with 5% aramid-based epoxy resin cured product exhibited improved mechanical and thermal properties, outperforming pure E-51 and pure aramid. This improvement is caused by the increased percentage of epoxide groups and flexible ether bonds. This work opens up new possibilities to maximize the reclamation of low-grade aramid fibers, which currently poses an obstacle in waste recycling. The Royal Society of Chemistry 2021-11-10 /pmc/articles/PMC9043422/ /pubmed/35492742 http://dx.doi.org/10.1039/d1ra07602g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Yu, Changlei
Yu, Pengda
Ma, Gang
Zhou, Lequn
Deng, Fei
Wang, Fang
Zhu, Xinbao
Preparation of aramid-based epoxy resin from low-grade aramid
title Preparation of aramid-based epoxy resin from low-grade aramid
title_full Preparation of aramid-based epoxy resin from low-grade aramid
title_fullStr Preparation of aramid-based epoxy resin from low-grade aramid
title_full_unstemmed Preparation of aramid-based epoxy resin from low-grade aramid
title_short Preparation of aramid-based epoxy resin from low-grade aramid
title_sort preparation of aramid-based epoxy resin from low-grade aramid
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9043422/
https://www.ncbi.nlm.nih.gov/pubmed/35492742
http://dx.doi.org/10.1039/d1ra07602g
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