Effect of Curing Temperature and Curing System on Structure-Property Relations of Rubber Blends

1 September 1980

journal article
Published by Rubber Division, ACS in Rubber Chemistry and Technology

Vol. 53 (4) , 960-974
https://doi.org/10.5254/1.3535071

Abstract

In the present paper we have studied the effects of curing temperature (150° and 180°C) and curing system (conventional and efficient vulcanization) on 1) the technical properties, 2) polymer-filler interaction and 3) network structure of NR-BR, NR-SBR-BR, NR-SBR blends. On the basis of cure rate and interphase crosslinking, it has been suggested that the tendency to form mechanically compatible blends follows the order NR-BR > NR-SBR-BR > NR-SBR. It is the interplay of the network structure and polymer-filler interaction which controls the properties of the blend vulcanizates. The resilience, heat build-up and set properties depend more on the network structure, while the tensile, tear and fatigue resistance are influenced more by the polymer-filler interaction.

Keywords

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