Design of a Passenger Radial Tire Compound for Steel Belt Based on Natural Rubber and cis Butadiene Rubber

Most formulas used for the passenger radial tire belt compound are based on natural rubber. This project seeks to develop the formula by blending it with cis- butadiene rubber. The basic formula includes natural rubber filled with carbon black N326. Comprehensive study review of all components of the steel belt formulation to decide and determine the empirical factors was performed.Then in experimental design and statistical analysis framefork, partial replacement of natural rubber with cis- butadiene rubber with two key factors of resorcinol and formaldehyde donor resin were studied. The developed formula, in addition to having maximum adhesion rubber- wire, showed a significant reduction in the reversion phenomenon.