تأثير نسب الكبريت والمعجلات بوجود نسب من المطاط المعاد على الخصائص الفيزياوية والميكانيكية على عجينات الإطار

Abstract

Abstract Research is concentrated on the study of the effect of changing ratios of the sulfur and accelerators simultaneously at constant ratios of sulfur and accelerators simultaneously at constant ratios of reclaimed rubber.It was found that the simultaneous reduction of sulfur and accelerators ratios improve the mechanical and physical properties of the recipes through the reduction of cure rate. This found in the increase in abrasion resistance ,tensile strength ,elongation and modulus and the decrease in hardness. The study was indicated that the best optimum ratios of sulfur and accelerators are: (1.5) phr for sulfur and (0.188) phr for (OBTS) in (EGI181/1)recipe. (1.185) phr for sulfur and (0.015) phr for OBTS in TBB2 recipe. (1.306) phr for sulfur and (0.8790) phr for CBSand (0.087) phr for DPG in (BTH16) recipe.(1.700) phr for sulfur and (0.700) phr for OBTS in (BDG169) recipe. (1.462) phr for sulfur and (1.462) phr for OBTS in (BAR63) recipe.