Investigation of Analytical Model for Reaction Kinetic of Accelerated Sulfur Vulcanization

A equation for the prediction of crosslinking of a tire compound during accelerated sulfur vulcanization is presented. This solution derived from a second order non homogeneous differential equation deduced from kinetic model. Kinetic model constants are evaluated at three temperatures through a Levenberg-Marquart method. Then this model is applied to estimate numerically the degree of crosslinking performed on experimental MDR cure curve. The results of this model show predictions of properties of compound in the induction stage with long time and post cure stage with considerable reversion have error.