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Structural changes in epoxy resin polymer after heating and their influence on space charges

✍ Scribed by Hichem Smaoui; Hajer Guermazi; Serge Agnel; Youssef Mlik; Alain Toureille; François Schué

Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 205 KB
Volume: 52
Category: Article
ISSN: 0959-8103
DOI: 10.1002/pi.1217

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✦ Synopsis

Abstract

Infrared spectroscopy was used to characterize changes in physicochemical properties of an epoxy‐amine resin as a function of temperature. The thermal degradation of the system was studied by means of thermogravimetric analysis. The effect of heat on evolution of space charges was investigated by the thermal step method and the thermally stimulated depolarization currents method. It was found that heat induced ring opening of epoxide groups and promoted formation of carbonyl groups. Space charge density was found to increase with increasing temperature while dipolar relaxation decreased. Copyright © 2003 Society of Chemical Industry

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Influence of heat treatment on the space charge within an epoxy resin polymer material

✍ Hajer Guermazi; Hichem Smaoui; Serge Agnel; Youssef Mlik; Alain Toureille; Franç 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 106 KB

## Abstract The influence of heat treatment on the appearance and the evolution of the space charge repartition within an epoxy resin polymer material is investigated. The space charge measurements were made using the thermal step method (TSM) and the thermally stimulated depolarization currents (T