工程机械轮胎胎面基部胶配方的开发

Development of Tread Base Compound of OTR Tire

研究炭黑/白炭黑用量比对工程机械轮胎胎面基部胶性能的影响。结果表明:随着炭黑用量的减小、白炭黑用量的增大,胶料的Payne效应逐渐减弱,t10和t90呈逐渐延长趋势;硫化胶的100%和300%定伸应力逐渐减小,拉断伸长率逐渐增大,耐屈挠性能提高,生热降低;将炭黑/白炭黑用量比为23/30的试验配方用于制备成品轮胎,轮胎的高速耐久性能大幅提高。

The effects of the ratio of carbon black and silica on the properties of tread base compound of OTR tire were studied.The results showed that when the addition level of carbon black decreased and the addition level of silica increased,the Payne effect of the compound decreased,t 10 and t90 were extended,meanwhile,the modulus at 100%and 300%elongation gradually decreased,elongation at break increased,flexing resistance was improved and heat build-up decreased.The high speed endurance of OTR tire with the experimental tread formula having the optimized ratio of carbon black and silica at 23/30 was greatly improved.