The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins

Presented here is an investigation into the glassy state molecular mobility of modified epoxy amine networks using sub-ambient β relaxations measured from dynamic mechanical relaxations and their relationship to compressive properties. Two classes of additives are used to modify the epoxy amine netw...

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Autores principales:	Larry Q. Reyes, Samuel R. Swan, Houlei Gan, Seyed Mohsen Seraji, Jane Zhang, Russell J. Varley
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Beta relaxations Compression Epoxy/amine networks POSS Mono functional epoxy diluents Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/81700e75e9fd42619b458fd1bc5d4949
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spelling	oai:doaj.org-article:81700e75e9fd42619b458fd1bc5d49492021-11-24T04:23:36ZThe role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins0142-941810.1016/j.polymertesting.2020.106873https://doaj.org/article/81700e75e9fd42619b458fd1bc5d49492021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321024https://doaj.org/toc/0142-9418Presented here is an investigation into the glassy state molecular mobility of modified epoxy amine networks using sub-ambient β relaxations measured from dynamic mechanical relaxations and their relationship to compressive properties. Two classes of additives are used to modify the epoxy amine network, the first are bulky inorganic siloxane caged epoxy functional polysilsesquioxanes (POSS) and the second are mono-functional epoxy diluents. Different pre-reaction methods between the POSS and amine were used to maximise dispersion or improved covalent attachment within the epoxy amine network while the mono-functional epoxy diluents easily react into the network via simple blending. Despite the wide structural variations in modifier and result effects upon final structure, microstructure and properties, the glassy state molecular mobility as measured by sub-ambient β relaxations correlates strongly with changes in modulus and yield strain.Larry Q. ReyesSamuel R. SwanHoulei GanSeyed Mohsen SerajiJane ZhangRussell J. VarleyElsevierarticleBeta relaxationsCompressionEpoxy/amine networksPOSSMono functional epoxy diluentsPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106873- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beta relaxations Compression Epoxy/amine networks POSS Mono functional epoxy diluents Polymers and polymer manufacture TP1080-1185
spellingShingle	Beta relaxations Compression Epoxy/amine networks POSS Mono functional epoxy diluents Polymers and polymer manufacture TP1080-1185 Larry Q. Reyes Samuel R. Swan Houlei Gan Seyed Mohsen Seraji Jane Zhang Russell J. Varley The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins
description	Presented here is an investigation into the glassy state molecular mobility of modified epoxy amine networks using sub-ambient β relaxations measured from dynamic mechanical relaxations and their relationship to compressive properties. Two classes of additives are used to modify the epoxy amine network, the first are bulky inorganic siloxane caged epoxy functional polysilsesquioxanes (POSS) and the second are mono-functional epoxy diluents. Different pre-reaction methods between the POSS and amine were used to maximise dispersion or improved covalent attachment within the epoxy amine network while the mono-functional epoxy diluents easily react into the network via simple blending. Despite the wide structural variations in modifier and result effects upon final structure, microstructure and properties, the glassy state molecular mobility as measured by sub-ambient β relaxations correlates strongly with changes in modulus and yield strain.
format	article
author	Larry Q. Reyes Samuel R. Swan Houlei Gan Seyed Mohsen Seraji Jane Zhang Russell J. Varley
author_facet	Larry Q. Reyes Samuel R. Swan Houlei Gan Seyed Mohsen Seraji Jane Zhang Russell J. Varley
author_sort	Larry Q. Reyes
title	The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins
title_short	The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins
title_full	The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins
title_fullStr	The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins
title_full_unstemmed	The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins
title_sort	role of β relaxations in determining the compressive properties of an epoxy amine network modified with poss and mono-functional epoxy resins
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/81700e75e9fd42619b458fd1bc5d4949
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The role of β relaxations in determining the compressive properties of an epoxy amine network modified with POSS and mono-functional epoxy resins

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