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Processing of polyurethane–polyester interpenetrating polymer network (IPN)

✍ Scribed by T. Jeffrey Hsu; L. James Lee

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
880 KB
Volume
36
Category
Article
ISSN
0021-8995

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✦ Synopsis

The kinetics and heat transfer during the curing of a polyurethane-polyester interpenetrating polymer network (IPN) were investigated experimentally and theoretically. A model based on the additivity rule of constituent ingredients was used to predict the IPNs reaction kinetics and heat transfer. Compared with the adiabatic temperature rise measured during reaction injection molding and the temperature profiles measured during a casting process, the model prediction is close to the experimental data. Deviations of model prediction from experimental results were found in the comparison of reaction rate profiles measured by differential scanning calorimetry. This suggests that reaction interactions may exist in the polymerization system.

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