Heterogeneous dynamics in the curing process of epoxy resins

Abstract Epoxy resin is indispensable for modern industry because of its excellent mechanical properties, chemical resistance, and excellent moldability. To date, various methods have been used to investigate the physical properties of the cured product and the kinetics of the curing process, but it...

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Autores principales:	Taiki Hoshino, Yasushi Okamoto, Atsushi Yamamoto, Hiroyasu Masunaga
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/062be7a82b9840538ecd40097753c43d
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spelling	oai:doaj.org-article:062be7a82b9840538ecd40097753c43d2021-12-02T15:45:21ZHeterogeneous dynamics in the curing process of epoxy resins10.1038/s41598-021-89155-x2045-2322https://doaj.org/article/062be7a82b9840538ecd40097753c43d2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89155-xhttps://doaj.org/toc/2045-2322Abstract Epoxy resin is indispensable for modern industry because of its excellent mechanical properties, chemical resistance, and excellent moldability. To date, various methods have been used to investigate the physical properties of the cured product and the kinetics of the curing process, but its microscopic dynamics have been insufficiently studied. In this study, the microscopic dynamics in the curing process of a catalytic epoxy resin were investigated under different temperature conditions utilizing X-ray photon correlation spectroscopy. Our results revealed that the temperature conditions greatly affected the dynamical heterogeneity and cross-linking density of the cured materials. An overview of the microscopic mechanism of the curing process was clearly presented through comparison with the measurement results of other methods, such as 1H-pulse nuclear magnetic resonance spectroscopy. The quantification of such heterogeneous dynamics is particularly useful for optimizing the curing conditions of various materials to improve their physical properties.Taiki HoshinoYasushi OkamotoAtsushi YamamotoHiroyasu MasunagaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Taiki Hoshino Yasushi Okamoto Atsushi Yamamoto Hiroyasu Masunaga Heterogeneous dynamics in the curing process of epoxy resins
description	Abstract Epoxy resin is indispensable for modern industry because of its excellent mechanical properties, chemical resistance, and excellent moldability. To date, various methods have been used to investigate the physical properties of the cured product and the kinetics of the curing process, but its microscopic dynamics have been insufficiently studied. In this study, the microscopic dynamics in the curing process of a catalytic epoxy resin were investigated under different temperature conditions utilizing X-ray photon correlation spectroscopy. Our results revealed that the temperature conditions greatly affected the dynamical heterogeneity and cross-linking density of the cured materials. An overview of the microscopic mechanism of the curing process was clearly presented through comparison with the measurement results of other methods, such as 1H-pulse nuclear magnetic resonance spectroscopy. The quantification of such heterogeneous dynamics is particularly useful for optimizing the curing conditions of various materials to improve their physical properties.
format	article
author	Taiki Hoshino Yasushi Okamoto Atsushi Yamamoto Hiroyasu Masunaga
author_facet	Taiki Hoshino Yasushi Okamoto Atsushi Yamamoto Hiroyasu Masunaga
author_sort	Taiki Hoshino
title	Heterogeneous dynamics in the curing process of epoxy resins
title_short	Heterogeneous dynamics in the curing process of epoxy resins
title_full	Heterogeneous dynamics in the curing process of epoxy resins
title_fullStr	Heterogeneous dynamics in the curing process of epoxy resins
title_full_unstemmed	Heterogeneous dynamics in the curing process of epoxy resins
title_sort	heterogeneous dynamics in the curing process of epoxy resins
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/062be7a82b9840538ecd40097753c43d
work_keys_str_mv	AT taikihoshino heterogeneousdynamicsinthecuringprocessofepoxyresins AT yasushiokamoto heterogeneousdynamicsinthecuringprocessofepoxyresins AT atsushiyamamoto heterogeneousdynamicsinthecuringprocessofepoxyresins AT hiroyasumasunaga heterogeneousdynamicsinthecuringprocessofepoxyresins
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Heterogeneous dynamics in the curing process of epoxy resins

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