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Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement
Aramid nanofibers (ANFs) are a novel type of promising nanoscale building blocks for high-performance nanocomposites. Conventionally, ANFs are used to composite with polymers containing polar groups such as –OH and –NH(2) since those polymers can interact with the amide groups in ANFs through polar-...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6978654/ https://www.ncbi.nlm.nih.gov/pubmed/32010675 http://dx.doi.org/10.3389/fchem.2019.00939 |
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author | Dong, Congcong Guo, Peng Yuan, Yue Sun, Changmei Qu, Rongjun Ji, Chunnuan Zhang, Ying Wang, Ying |
author_facet | Dong, Congcong Guo, Peng Yuan, Yue Sun, Changmei Qu, Rongjun Ji, Chunnuan Zhang, Ying Wang, Ying |
author_sort | Dong, Congcong |
collection | PubMed |
description | Aramid nanofibers (ANFs) are a novel type of promising nanoscale building blocks for high-performance nanocomposites. Conventionally, ANFs are used to composite with polymers containing polar groups such as –OH and –NH(2) since those polymers can interact with the amide groups in ANFs through polar-polar interaction such as hydrogen bonding. In this study, ANFs were derivatized with non-polar alkyl groups including ethyl, octyl and dodecyl groups and used as a performance-enhancing additive to polyvinyl chloride (PVC) with weak polarity. Interestingly, it was observed that the morphologies of the resulting alkyl-derivatized aramid nanomaterials (R-ANMs) varied significantly including nanofibers, nanobranches, nanosheets, and nanospheres, all of which depended on the degree of substitution (DS) and the chain length of the alkyl group. As an additive, R-ANMs improved the Young's modulus, toughness and yield strength of the PVC films. This study proves the concept that ANFs can be used to composite weakly polar or non-polar polymers. |
format | Online Article Text |
id | pubmed-6978654 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-69786542020-02-01 Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement Dong, Congcong Guo, Peng Yuan, Yue Sun, Changmei Qu, Rongjun Ji, Chunnuan Zhang, Ying Wang, Ying Front Chem Chemistry Aramid nanofibers (ANFs) are a novel type of promising nanoscale building blocks for high-performance nanocomposites. Conventionally, ANFs are used to composite with polymers containing polar groups such as –OH and –NH(2) since those polymers can interact with the amide groups in ANFs through polar-polar interaction such as hydrogen bonding. In this study, ANFs were derivatized with non-polar alkyl groups including ethyl, octyl and dodecyl groups and used as a performance-enhancing additive to polyvinyl chloride (PVC) with weak polarity. Interestingly, it was observed that the morphologies of the resulting alkyl-derivatized aramid nanomaterials (R-ANMs) varied significantly including nanofibers, nanobranches, nanosheets, and nanospheres, all of which depended on the degree of substitution (DS) and the chain length of the alkyl group. As an additive, R-ANMs improved the Young's modulus, toughness and yield strength of the PVC films. This study proves the concept that ANFs can be used to composite weakly polar or non-polar polymers. Frontiers Media S.A. 2020-01-17 /pmc/articles/PMC6978654/ /pubmed/32010675 http://dx.doi.org/10.3389/fchem.2019.00939 Text en Copyright © 2020 Dong, Guo, Yuan, Sun, Qu, Ji, Zhang and Wang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Dong, Congcong Guo, Peng Yuan, Yue Sun, Changmei Qu, Rongjun Ji, Chunnuan Zhang, Ying Wang, Ying Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement |
title | Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement |
title_full | Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement |
title_fullStr | Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement |
title_full_unstemmed | Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement |
title_short | Aramid Nanomaterials of Various Morphologies: Preparation and Mechanical Property Enhancement |
title_sort | aramid nanomaterials of various morphologies: preparation and mechanical property enhancement |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6978654/ https://www.ncbi.nlm.nih.gov/pubmed/32010675 http://dx.doi.org/10.3389/fchem.2019.00939 |
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