Effect of Alumina Modified by Silane on the Mechanical, Swelling and Dielectric Properties of Al2O3/EPDM/SBR Blend Composites

Abstract Rubber blending has been widely used to improve various properties in finished rubber products. The purpose of this paper is investigate the effect filler size, type, concentration, and surface treatment on mechanical, swelling, dielectric, morphology ethylene propylene diene (EPDM)/styrene-butadiene (SBR) blend nanocomposites filled with alumina (Al 2 O 3 ) nanoparticles. Bis-(3-(triethoxysilyl)-propyl)-tetrasulfide (TESPT) was as a silane coupling agent. containing Al nanoparticles were compared carbon black (CB). results indicate that prepared, particular TESPT, had better than composites without TESPT. Mechanical CB-filled EPDM/SBR noticeably improved, indicating CB's inherent reinforcing potential. We found nanocomposites' crosslink density filler–rubber interaction increase, swelling coefficient decreases increasing content. dielectric showed significant enhancement fillers. SEM images CB sample higher distribution due good dispersion. This study's experimental data will help design manufacture outdoor insulators.