An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry

An effective method was developed to improve the interfacial interaction between Mutiwalled carbon nanotubes (MWCNTs) and epoxy matrix. The performance of thermal conductivity and strength of the epoxy vitrimer were enhanced by polydopamine (PDA) coating. Polydopamine is a commonly used photothermal...

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Autores principales: Feng, Yang, Nie, Zhuguang, Deng, Panhong, Luo, Liping, Hu, Xingman, Su, Jie, Li, Haiming, Fan, Xiaodong, Qi, Shuhua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9408316/
https://www.ncbi.nlm.nih.gov/pubmed/36012099
http://dx.doi.org/10.3390/ijms23168833
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author Feng, Yang
Nie, Zhuguang
Deng, Panhong
Luo, Liping
Hu, Xingman
Su, Jie
Li, Haiming
Fan, Xiaodong
Qi, Shuhua
author_facet Feng, Yang
Nie, Zhuguang
Deng, Panhong
Luo, Liping
Hu, Xingman
Su, Jie
Li, Haiming
Fan, Xiaodong
Qi, Shuhua
author_sort Feng, Yang
collection PubMed
description An effective method was developed to improve the interfacial interaction between Mutiwalled carbon nanotubes (MWCNTs) and epoxy matrix. The performance of thermal conductivity and strength of the epoxy vitrimer were enhanced by polydopamine (PDA) coating. Polydopamine is a commonly used photothermal agent, which of course, was effective in modifying MWCNTs used in photoresponsive epoxy resin. The surface temperature of the epoxy composite with 3% MWCNTs@PDA fillers added increased from room temperature to 215 °C in 48 s. The metal–catechol coordination interactions formed between the catechol groups of PDA and Zn(2+) accelerated the stress relaxation of epoxy vitrimer. Moreover, the shape memory, repairing, and recycling of epoxy vitrimer were investigated. Therefore, dopamine coating is a multifunctional approach to enhance the performance of epoxy vitrimer.
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spelling pubmed-94083162022-08-26 An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry Feng, Yang Nie, Zhuguang Deng, Panhong Luo, Liping Hu, Xingman Su, Jie Li, Haiming Fan, Xiaodong Qi, Shuhua Int J Mol Sci Article An effective method was developed to improve the interfacial interaction between Mutiwalled carbon nanotubes (MWCNTs) and epoxy matrix. The performance of thermal conductivity and strength of the epoxy vitrimer were enhanced by polydopamine (PDA) coating. Polydopamine is a commonly used photothermal agent, which of course, was effective in modifying MWCNTs used in photoresponsive epoxy resin. The surface temperature of the epoxy composite with 3% MWCNTs@PDA fillers added increased from room temperature to 215 °C in 48 s. The metal–catechol coordination interactions formed between the catechol groups of PDA and Zn(2+) accelerated the stress relaxation of epoxy vitrimer. Moreover, the shape memory, repairing, and recycling of epoxy vitrimer were investigated. Therefore, dopamine coating is a multifunctional approach to enhance the performance of epoxy vitrimer. MDPI 2022-08-09 /pmc/articles/PMC9408316/ /pubmed/36012099 http://dx.doi.org/10.3390/ijms23168833 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Feng, Yang
Nie, Zhuguang
Deng, Panhong
Luo, Liping
Hu, Xingman
Su, Jie
Li, Haiming
Fan, Xiaodong
Qi, Shuhua
An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry
title An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry
title_full An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry
title_fullStr An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry
title_full_unstemmed An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry
title_short An Effective Approach to Improve the Thermal Conductivity, Strength, and Stress Relaxation of Carbon Nanotubes/Epoxy Composites Based on Vitrimer Chemistry
title_sort effective approach to improve the thermal conductivity, strength, and stress relaxation of carbon nanotubes/epoxy composites based on vitrimer chemistry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9408316/
https://www.ncbi.nlm.nih.gov/pubmed/36012099
http://dx.doi.org/10.3390/ijms23168833
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