载重斜交轮胎胎肩垫胶配方的优化

Optimization of Shoulder Wedge Formulation for Truck Bias Tire

通过调整天然橡胶(NR)/顺丁橡胶(BR)并用比和填料体系优化载重斜交轮胎胎肩垫胶配方,并对胶料性能进行研究。结果表明,NR/BR并用比为85/15、炭黑N550用量为38份、白炭黑用量为10份、硅烷偶联剂用量为2份时,胶料的抗硫化返原性和物理性能较好,压缩生热降低30%以上,成品轮胎的高速性能和耐久性能良好。

The shoulder wedge formulation for truck bias tire was optimized by adjusting natural rubber(NR)/butadiene rubber(BR) blending ratio and filler system,and the properties of compound were investigated. The results showed that,when the blending ratio of NR/BR was 85/15,the addition level of carbon black N550,silica and silane coupling agent was 38,10 and 2 phr,respectively,the reversion resistant and physical properties of the compound were better,the compression heat build-up was reduced by more than 30%,and the finished tire had good high-speed performance and durability.