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Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene

Epoxy resin (EP) was toughened by epoxidized hydroxy-terminated polybutadiene (EHTPB), with the corresponding modified epoxy resin being prepared. In this paper, the microstructure of EHTPB-modified epoxy resin was characterized, while the influence of different contents of EHTPB on curing kinetics,...

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Detalles Bibliográficos
Autores principales: Ge, Zhen, Zhang, Wenguo, Huang, Chao, Luo, Yunjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6025047/
https://www.ncbi.nlm.nih.gov/pubmed/29857534
http://dx.doi.org/10.3390/ma11060932
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author Ge, Zhen
Zhang, Wenguo
Huang, Chao
Luo, Yunjun
author_facet Ge, Zhen
Zhang, Wenguo
Huang, Chao
Luo, Yunjun
author_sort Ge, Zhen
collection PubMed
description Epoxy resin (EP) was toughened by epoxidized hydroxy-terminated polybutadiene (EHTPB), with the corresponding modified epoxy resin being prepared. In this paper, the microstructure of EHTPB-modified epoxy resin was characterized, while the influence of different contents of EHTPB on curing kinetics, mechanical properties, morphology, thermal properties, dynamic thermomechanical (DMA) properties and crosslink density of the modified epoxy resin were also discussed. The results showed that the EHTPB-modified epoxy resin was successfully prepared and cured completely. The activation energy (E(a)) of the modified epoxy resin decreased after the addition of EHTPB. With an increase in the EHTPB content, the tensile strength (σ(m)) of the modified epoxy resin decreased and the breaking elongation (ε(b)) increased gradually. The initial decomposition temperature (T(5%)) and glass transition temperature (T(g)) of the modified epoxy resin decreased with an increase in the EHTPB content. The modified epoxy resin had a rough fractured surface and the interface was blurred, presenting a ductile fracture.
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spelling pubmed-60250472018-07-09 Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene Ge, Zhen Zhang, Wenguo Huang, Chao Luo, Yunjun Materials (Basel) Article Epoxy resin (EP) was toughened by epoxidized hydroxy-terminated polybutadiene (EHTPB), with the corresponding modified epoxy resin being prepared. In this paper, the microstructure of EHTPB-modified epoxy resin was characterized, while the influence of different contents of EHTPB on curing kinetics, mechanical properties, morphology, thermal properties, dynamic thermomechanical (DMA) properties and crosslink density of the modified epoxy resin were also discussed. The results showed that the EHTPB-modified epoxy resin was successfully prepared and cured completely. The activation energy (E(a)) of the modified epoxy resin decreased after the addition of EHTPB. With an increase in the EHTPB content, the tensile strength (σ(m)) of the modified epoxy resin decreased and the breaking elongation (ε(b)) increased gradually. The initial decomposition temperature (T(5%)) and glass transition temperature (T(g)) of the modified epoxy resin decreased with an increase in the EHTPB content. The modified epoxy resin had a rough fractured surface and the interface was blurred, presenting a ductile fracture. MDPI 2018-05-31 /pmc/articles/PMC6025047/ /pubmed/29857534 http://dx.doi.org/10.3390/ma11060932 Text en © 2018 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
Ge, Zhen
Zhang, Wenguo
Huang, Chao
Luo, Yunjun
Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene
title Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene
title_full Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene
title_fullStr Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene
title_full_unstemmed Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene
title_short Study on Epoxy Resin Toughened by Epoxidized Hydroxy-Terminated Polybutadiene
title_sort study on epoxy resin toughened by epoxidized hydroxy-terminated polybutadiene
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6025047/
https://www.ncbi.nlm.nih.gov/pubmed/29857534
http://dx.doi.org/10.3390/ma11060932
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