Preparation and physical properties of fluorosilicone rubber/polypropylene thermoplastic vulcanizates

Abstract

A new thermoplastic vulcanizate (TPVs) composed of polypropylene and fluorosilicone rubber was successfully prepared via dynamic vulcanization focusing on undersea cable and automobile applications. Phase morphology confirms the dispersed rubber particles in a continuous thermoplastic phase. The influence of vulcanization and post-curing time on the mechanical and dynamic properties of TPVs was investigated. Notably, the tensile strength decreased, and the compression set increased with an increase in vulcanization time. Overall, the fabricated TPVs possessed good tensile strength, elastic behavior, and thermal stability. The post-curing time effect on TPVs exhibited a good compression set and lower hardness, but tensile properties deteriorated.