Crystallization kinetics of polyphenylene sulfide

Jog, J. P. ; Nadkarni, V. M. (1985) Crystallization kinetics of polyphenylene sulfide Journal of Applied Polymer Science, 30 (3). pp. 997-1009. ISSN 0021-8995

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The crystallization kinetics of unfilled and glass-reinforced grades of polyphenylene sulfide has been investigated by using differential scanning calorimetry. The maximum rate of crystallization is observed at about 170°C. From the crystallization data, it is recommended that the molding parameters should be so specified that the polymer spends 10-15 s over the temperature range of 155-190°C during cooling, before demolding, in order to ensure stable morphology of the molded part. The glass fibers have an accelerating influence on crystallization resulting in a 15-25% reduction in crystallization time. The kinetic data have been interpreted by using Avrami analysis followed by a discussion of the possible crystallization mechanisms.

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