Polyphenylene Sulfide (PPS) has been used as a high performance polymer system in extrusion, pultrusion, coating, and injection molding for decades in a variety of forms produced from different processes. Introduction of PPS from a completely new process requires that the material be characterized for process and application simulation. Since most processes require forming and cooling from the melt phase, characterization of the crystallization kinetics under continuous cooling is an integral step in modeling industrial processes. The nonisothermal crystallization kinetics of semi-linear PPS with 40% glass fiber were evaluated and modeled using Ozawa and Liu-Mo nonisothermal characterization techniques. The Liu-Mo analysis was found to model the behavior of this compound well while the Ozawa model did not. The Nakamura and Malkin models were found to be most appropriate for introduction into simulation codes. The modified Malkin model showed a superior fit to experimental data, and was used to create a crystallization master curve for later introduction in to engineering process simulation.
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