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Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites

Carbon nanotube fiber (CNTF), prepared by the direct-spinning method, has several nanopores, and the infiltration behavior of resins into these nanopores could influence the mechanical properties of CNTF-based composites. In this work, we investigated the infiltration behavior of resin into the nano...

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Autores principales: Shin, Jongseon, Lee, Kyunbae, Jung, Yeonsu, Park, Byeongjin, Yang, Seung Jae, Kim, Taehoon, Lee, Sang Bok
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7796271/
https://www.ncbi.nlm.nih.gov/pubmed/33383785
http://dx.doi.org/10.3390/ma14010106
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author Shin, Jongseon
Lee, Kyunbae
Jung, Yeonsu
Park, Byeongjin
Yang, Seung Jae
Kim, Taehoon
Lee, Sang Bok
author_facet Shin, Jongseon
Lee, Kyunbae
Jung, Yeonsu
Park, Byeongjin
Yang, Seung Jae
Kim, Taehoon
Lee, Sang Bok
author_sort Shin, Jongseon
collection PubMed
description Carbon nanotube fiber (CNTF), prepared by the direct-spinning method, has several nanopores, and the infiltration behavior of resins into these nanopores could influence the mechanical properties of CNTF-based composites. In this work, we investigated the infiltration behavior of resin into the nanopores of the CNTFs and mechanical properties of the CNTF-based single-fiber composites using six epoxy resins with varying viscosities. Epoxy resins can be easily infiltrated into the nanopores of the CNTF; however, pores appear when a resin with significantly high or low viscosity is used in the preparation process of the composites. All the composite fibers exhibit lower load-at-break value compared to as-densified CNTF, which is an unexpected phenomenon. It is speculated that the bundle structure of the CNTF can undergo changes due to the high affinity between the epoxy and CNTF. As composite fibers containing pores exhibit an even lower load-at-break value, the removal of pores by the defoaming process is essential to enhance the mechanical properties of the composite fibers.
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spelling pubmed-77962712021-01-10 Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites Shin, Jongseon Lee, Kyunbae Jung, Yeonsu Park, Byeongjin Yang, Seung Jae Kim, Taehoon Lee, Sang Bok Materials (Basel) Article Carbon nanotube fiber (CNTF), prepared by the direct-spinning method, has several nanopores, and the infiltration behavior of resins into these nanopores could influence the mechanical properties of CNTF-based composites. In this work, we investigated the infiltration behavior of resin into the nanopores of the CNTFs and mechanical properties of the CNTF-based single-fiber composites using six epoxy resins with varying viscosities. Epoxy resins can be easily infiltrated into the nanopores of the CNTF; however, pores appear when a resin with significantly high or low viscosity is used in the preparation process of the composites. All the composite fibers exhibit lower load-at-break value compared to as-densified CNTF, which is an unexpected phenomenon. It is speculated that the bundle structure of the CNTF can undergo changes due to the high affinity between the epoxy and CNTF. As composite fibers containing pores exhibit an even lower load-at-break value, the removal of pores by the defoaming process is essential to enhance the mechanical properties of the composite fibers. MDPI 2020-12-29 /pmc/articles/PMC7796271/ /pubmed/33383785 http://dx.doi.org/10.3390/ma14010106 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Shin, Jongseon
Lee, Kyunbae
Jung, Yeonsu
Park, Byeongjin
Yang, Seung Jae
Kim, Taehoon
Lee, Sang Bok
Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites
title Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites
title_full Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites
title_fullStr Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites
title_full_unstemmed Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites
title_short Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites
title_sort mechanical properties and epoxy resin infiltration behavior of carbon-nanotube-fiber-based single-fiber composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7796271/
https://www.ncbi.nlm.nih.gov/pubmed/33383785
http://dx.doi.org/10.3390/ma14010106
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