Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids
dc.contributor.author | Donato, Ricardo Keitel | pt_BR |
dc.contributor.author | Donato, Katarzyna Joanna Zawada | pt_BR |
dc.contributor.author | Schrekker, Henri Stephan | pt_BR |
dc.contributor.author | Matejka, Libor | pt_BR |
dc.date.accessioned | 2014-01-08T01:52:51Z | pt_BR |
dc.date.issued | 2012 | pt_BR |
dc.identifier.issn | 0959-9428 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/85393 | pt_BR |
dc.description.abstract | 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. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Journal of Materials Chemistry. Cambrigde, GB. Vol. 22, no. 19, (2012), p. 9939-9948 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Líquidos iônicos | pt_BR |
dc.subject | Sílica | pt_BR |
dc.subject | Nanocompósitos | pt_BR |
dc.title | Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000835278 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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