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High Frequency (27.12 MHz) Activation of the Radical Curing of Unsaturated Polyesters in Styrene Solution

Published online by Cambridge University Press:  10 February 2011

P. Alazard  and
A. Gourdenne
P. Alazard
Affiliation:
Laboratoire des Matériaux, ENSCT, 118 route de Narbonne, 31077 Toulouse Cedex, France
A. Gourdenne
Affiliation:
Laboratoire des Matériaux, ENSCT, 118 route de Narbonne, 31077 Toulouse Cedex, France
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Abstract

The crosslinking reaction of a divinylester resin of epoxy-acrylic type in styrene solution is activated by high frequencies at 27.12 MHz. The samples to be cured are positionned betweeen two parallel steel plates used as electrodes and an electrical voltage is applied. A parametrical study is described, where the applied electrical voltage, or power, and the concentration of benzoyl peroxide, which is the radical initiator, are taken into account. The optimization of the electromagnetic curing is performed through the determination of the glassy transition temperature of the final products.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 430: Symposium O – Microwave Processing of Materials V , 1996 , 593
Copyright
Copyright © Materials Research Society 1996

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