NDLI: Tunable reinforcement of epoxy-silica nanocomposites with ionic liquids

Content Provider	Royal Society of Chemistry (RSC)
Author	Donato, Katarzyna Z. Matějka, Libor Donato, Ricardo K. Schrekker, Henri S.
Copyright Year	2012
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.
Starting Page	9939
Ending Page	9948
Page Count	10
File Format	HTM / HTML PDF
ISSN	09599428
Volume Number	22
Issue Number	19
Journal	Journal of Materials Chemistry
DOI	10.1039/c2jm30830d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Sol\u2013gel process Epoxy Stiffness Triethylene glycol Ether Nanocomposite Ultimate tensile strength
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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