The effect of cure cycle of unsaturated polyester resin on the temperature and conversion profiles.: An article from: Polymer Engineering and Science

This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on March 15, 1996. The length of the article is 2927 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

From the author: Temperature and conversion profiles during hot curing of an unsaturated polyester resin were studied. It was found, unexpectedly, that the reaction exotherm was largest in the outer layer close to the hot mold surface and least in the center core. The opposite was true for room temperature curing with a different initiator system. Comparison of the experimental results with heat transfer calculations has led to the conclusion that the kinetic character of cure across the polyester slab thickness was location-dependent. The variation with location was interpreted in terms of diffusion of the initiator components from the core towards the surface owing to their faster depletion close to the hot surface and the imposition of a temperature profile. Simulation of the experimental results was possible by combining the heat transfer equation with a kinetic equation accounting for an inhibitor induction time and a modified Arrhenius equation containing a location-dependent activation energy.

Citation Details
Title: The effect of cure cycle of unsaturated polyester resin on the temperature and conversion profiles.
Author: D. Alperstein
Publication:Polymer Engineering and Science (Refereed)
Date: March 15, 1996
Publisher: Society of Plastics Engineers, Inc.
Volume: v36 Issue: n5 Page: p610(5)

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