白炭黑高效活性分散剂好优达BH68在丁苯橡胶和天然橡胶胶料中的应用研究

摘要

In this study, application of high-efficient silica active dispersant Haoyouda BH68 in tire tread compound was investigated using SBR tread formula and NR tread formula. The experimental testing results showed that the Mooney viscosity of the silica iflled compound was signiifcantly reduced, the crosslinking degree, tensile modulus, tear strength and abrasion resistance of the vulcanizates increased, the rolling resistance decreased and wet skid resistance was improved. The optimum addition amount of BH68 was 6%~10%based on the weight of silica, and better effect was achieved by combining BH68 with silane coupling agent Si69.%采用丁苯橡胶（SBR）胎面胶配方和天然橡胶（NR）胎面胶配方，考察白炭黑高效活性分散剂好优达BH68的性能。结果表明：白炭黑高效活性分散剂好优达BH68可以显著降低白炭黑填充SBR胶料和NR胶料的门尼粘度，提高交联密度、定伸应力、撕裂强度、耐磨性能和抗湿滑性能，降低滚动阻力；白炭黑高效活性分散剂好优达BH68用量为白炭黑用量的6%~10%为宜，其与偶联剂Si69共同使用效果更佳。