Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/85393 |
Resumo: | Imidazolium ionic liquids (ILs) have the capacity to exert multiple functions as additives for the formation of epoxy-silica nanocomposites, via the simultaneous sol–gel process and epoxy network build-up. This study addresses the effect of ILs on the reinforcement of tensile properties in rubbery epoxy-silica nanocomposites, allowing property tailoring. The use of ILs together with the coupling agent 3-glycidyloxypropyltrimethoxysilane (GTMS) created a synergic action between physical and chemical interfacial bonding, enabling an increase in toughness without a considerable loss of stiffness. The best tensile property balance was obtained with IL 1-triethylene glycol monomethyl ether-3- methylimidazolium methanesulfonate and GTMS. The rubbery nanocomposite produced was remarkably both stiffer and tougher than the unmodified epoxy-silica system, displaying ca. 6 times higher modulus and tensile strength as well as more than 10 times higher energy to break. |
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Donato, Ricardo KeitelDonato, Katarzyna Joanna ZawadaSchrekker, Henri StephanMatejka, Libor2014-01-08T01:52:51Z20120959-9428http://hdl.handle.net/10183/85393000835278Imidazolium ionic liquids (ILs) have the capacity to exert multiple functions as additives for the formation of epoxy-silica nanocomposites, via the simultaneous sol–gel process and epoxy network build-up. This study addresses the effect of ILs on the reinforcement of tensile properties in rubbery epoxy-silica nanocomposites, allowing property tailoring. The use of ILs together with the coupling agent 3-glycidyloxypropyltrimethoxysilane (GTMS) created a synergic action between physical and chemical interfacial bonding, enabling an increase in toughness without a considerable loss of stiffness. The best tensile property balance was obtained with IL 1-triethylene glycol monomethyl ether-3- methylimidazolium methanesulfonate and GTMS. The rubbery nanocomposite produced was remarkably both stiffer and tougher than the unmodified epoxy-silica system, displaying ca. 6 times higher modulus and tensile strength as well as more than 10 times higher energy to break.application/pdfengJournal of Materials Chemistry. Cambrigde, GB. Vol. 22, no. 19, (2012), p. 9939-9948Líquidos iônicosSílicaNanocompósitosTunable reinforcement of epoxy-silica nanocomposites with ionic liquidsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000835278.pdf000835278.pdfTexto completo (inglês)application/pdf806032http://www.lume.ufrgs.br/bitstream/10183/85393/1/000835278.pdf1ad02efdd3d0d738dce731c2cd168be1MD51TEXT000835278.pdf.txt000835278.pdf.txtExtracted Texttext/plain49561http://www.lume.ufrgs.br/bitstream/10183/85393/2/000835278.pdf.txtfecadb63978fa68123c340561bfc4430MD52THUMBNAIL000835278.pdf.jpg000835278.pdf.jpgGenerated Thumbnailimage/jpeg2114http://www.lume.ufrgs.br/bitstream/10183/85393/3/000835278.pdf.jpgf092059d44d82cb81c3f79ab01b6e268MD5310183/853932021-07-09 04:32:21.277017oai:www.lume.ufrgs.br:10183/85393Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-07-09T07:32:21Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids |
title |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids |
spellingShingle |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids Donato, Ricardo Keitel Líquidos iônicos Sílica Nanocompósitos |
title_short |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids |
title_full |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids |
title_fullStr |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids |
title_full_unstemmed |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids |
title_sort |
Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids |
author |
Donato, Ricardo Keitel |
author_facet |
Donato, Ricardo Keitel Donato, Katarzyna Joanna Zawada Schrekker, Henri Stephan Matejka, Libor |
author_role |
author |
author2 |
Donato, Katarzyna Joanna Zawada Schrekker, Henri Stephan Matejka, Libor |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Donato, Ricardo Keitel Donato, Katarzyna Joanna Zawada Schrekker, Henri Stephan Matejka, Libor |
dc.subject.por.fl_str_mv |
Líquidos iônicos Sílica Nanocompósitos |
topic |
Líquidos iônicos Sílica Nanocompósitos |
description |
Imidazolium ionic liquids (ILs) have the capacity to exert multiple functions as additives for the formation of epoxy-silica nanocomposites, via the simultaneous sol–gel process and epoxy network build-up. This study addresses the effect of ILs on the reinforcement of tensile properties in rubbery epoxy-silica nanocomposites, allowing property tailoring. The use of ILs together with the coupling agent 3-glycidyloxypropyltrimethoxysilane (GTMS) created a synergic action between physical and chemical interfacial bonding, enabling an increase in toughness without a considerable loss of stiffness. The best tensile property balance was obtained with IL 1-triethylene glycol monomethyl ether-3- methylimidazolium methanesulfonate and GTMS. The rubbery nanocomposite produced was remarkably both stiffer and tougher than the unmodified epoxy-silica system, displaying ca. 6 times higher modulus and tensile strength as well as more than 10 times higher energy to break. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012 |
dc.date.accessioned.fl_str_mv |
2014-01-08T01:52:51Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/85393 |
dc.identifier.issn.pt_BR.fl_str_mv |
0959-9428 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000835278 |
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0959-9428 000835278 |
url |
http://hdl.handle.net/10183/85393 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of Materials Chemistry. Cambrigde, GB. Vol. 22, no. 19, (2012), p. 9939-9948 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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