The setting of tire curing process depends on the curing parameters of each component

and ultimately determines the curing efficiency

energy consumption and product quality of tires. The accuracy of curing parameters is crucial.The vulcanization crosslinking reaction of rubber products conforms to the first-order kinetic equation. The vulcanization reaction of silica filled rubber is not only the sulfur accelerator crosslinking reaction

but also the physical effect of polar agglomeration of silica. The vulcanization behavior cannot be accurately characterized by directly using the data measured by the rheometer.Based on this

the vulcanization behavior of silica filled master batch (without sulfur) was studied in this paper

indicating that the agglomeration of silica interfered with the torque increase during vulcanization test. Finally

the vulcanization curves of silica filled final rubber and master rubber were "subtracted" according to the "time torque" data

and the curves that can more accurately characterize the vulcanization dynamic behavior were redrawn to better guide the setting of tire vulcanization process.