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Original Articles

Structure and Properties of Dynamically Cured Thermoplastic Vulcanizate Based on Poly(vinylidene fluoride), Silicone Rubber, and Fluororubber

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Pages 209-217 | Published online: 07 Jan 2015
 

Abstract

Thermoplastic vulcanizates (TPVs) based on poly (vinylidene fluoride) (PVDF), silicone rubber (SR) and fluororubber (FKM) were prepared via dynamic vulcanization. Morphology characterization showed that spherical rubber particles were dispersed separately and “connected” by “bridge” in the TPV with 10 wt.% FKM, but agglomerated together with higher FKM content. The mechanical properties of TPVs were improved, especially tear strength and elongation increased from 24 kN.m−1 and 23% to 103 kN.m−1 and 306%, respectively, with FKM increased from 10 wt.% to 50 wt.%. Rheology studies and dynamic mechanical properties results showed that the compatibility between PVDF and rubber phase was improved by FKM.

GRAPHICAL ABSTRACT

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