白炭黑分散剂对轿车子午线轮胎胎面胶性能的影响

Effect of Silica Dispersant on Property of Tread Compound of Passenger Car Radial Tire

研究白炭黑分散剂对轿车子午线轮胎胎面胶加工性能、物理性能和动态力学性能的影响。结果表明:白炭黑分散剂可改善白炭黑在胶料中的分散性,降低胶料的门尼粘度,显著提高加工性能;添加白炭黑分散剂的硫化胶硬度、定伸应力和拉伸强度减小,拉断伸长率、撕裂强度和回弹值增大,压缩生热降低,胶料的抗湿滑性能提高,滚动阻力降低。

The effect of silica dispersant on the processing property,physical properties and dynamic mechanical properties of the tread compound of passenger car radial tire was studied.The results showed that,the silica dispersant could improve the dispersion of silica in the compound,reduce the Mooney viscosity of the compound,significantly improve the processing property.The hardness,modulus and tensile strength of the vulcanizate with silica dispersant decreased,the elongation at break,tear strength and resilience value increased,the compression heat build-up was reduced,the wet skid resistance was improved and the rolling resistance was reduced.