Tensile Properties of Vulcanized Polypropylene/Ethylene-Propylene Diene Terpolymer/Natural Rubber (PP/EPDM/NR) Blends: The Effect of trans-Polyoctenylene Rubber (TOR) Addition
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The effects of trans-polyoctenylene rubber (TOR) addition on the tensile properties of vulcanized polypropylene/ethylene-propylene diene terpolymer/natural rubber (PP/EPDM/NR) blends were investigated. Blends were prepared in several blend ratios in Haake Polydrive with temperature and rotor speed of 180 oC and 50 rpm respectively. Results indicated that the tensile strength and the stress at 100% elongation (M100) of vulcanized blends containing TOR are higher than without TOR leading to the formation of extended crosslinking. Scanning electron microscopy (SEM) micrographs from the surface extraction of the blends containing TOR support that the compatibilization have occurred during dynamic vulcanization.