A liquid elastomer for epoxy resin toughening
Padma, A; Rao, R, M V G K; Subramaniam, C; Subramaniam, C, FRP Pilot Plant, Material Science Division, National Aeronautical Laboratory. Bangalore. India
Журнал:
High Performance Polymers
Дата:
1994
Аннотация:
A liquid elastomer was synthesized using butyl acrylate, acrylic acid and acrylonitrile. The elastomer was characterized and used as a toughener for a high-functionality novolac epoxy resin to improve the impact strength of the resin castings. A chemical reaction between the epoxy resin used and the liquid elastomer synthesized was confirmed by infrared and dynamic mechanical analysis. Preliminary results indicated a 66% increase in impact strength of the castings with addition of 10% by weight of the elastomer. Scanning electron micrographs of the fractured surfaces showed the phase separation of the elastomer.
1.079Мб