STUDY THE EFFECT OF MOLYBDENUM TRI-OXIDEAS FILLER ON PROPERTIES OF SBR

Abstract

In the current research (which is done in the laboratories of Babylon TiresFactory), Studying the effect of molybdenum trioxide upon the characteristics ofcuring system of styrene- Butadiene rubber (SBR) has been carried out by usingOscillating Disk Rehometer according to the ASTM D-2084 specification. TheResults showed that the effect of addition (Molybdenum trioxide) to styrenebutadiene rubber in proportions of (0, 7.5,15,22, and 28) phr (per hundred percent). Molybdenum tri-oxide uses to enhance the hardness, the tensile strength andReometric properties of the rubber. The result showed that the cure time and scorchtime decreased when torsion stress and filler content increased also the tensilestrength and hardness advanced with the filler content increased. The hardnessdeveloped significantly from (62) to (68) shore (A) when molybdenum trioxide addedtherefore the rebound and elongation decreased.