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Toughening of Epoxy Resin by Methyl Methacrylate/2-Ethylhexyl Acrylate Copolymers: The Effect of Copolymer Composition

✍ Scribed by Soraia Zaioncz; Adriana A. Silva; Alex S. Sirqueira; Bluma G. Soares

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
233 KB
Volume
292
Category
Article
ISSN
1438-7492

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✦ Synopsis

Abstract

MMA‐EHA copolymers with different compositions and with a low amount of AA were synthesized and used as impact modifier for epoxy networks. The effect of the copolymers on the tensile and dynamic mechanical properties as well as impact resistance of the epoxy network was evaluated. The addition of 10 phr of low‐molar‐mass MMA‐EHA copolymer with defined composition resulted in a significant increase in impact resistance without any significant changes in the tensile strength, modulus, and glass transition temperature. The morphology of the modified epoxy network depends upon the copolymer composition.

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