锡偶联S-SBR/BR并用胶性能的研究

张建明　 赵素合　 黎宁　

摘　要：研究了国产锡偶联S-SBR／BR并用胶料的加工性能、物理性能及动态生热特性。研究结果表明，锡偶联S-SBR加入适量均匀剂后门尼粘度可与BR相近；随BR并用量的增大，共混胶料的耐屈挠以及耐磨性能都有所提高，生热略有降低，强力性能下降；锡偶联S-SBR／BR并用比为60／40，填充体系选用炭黑N234时，硫化胶综合性能达到最佳。
关键词：锡偶联S-SBR；BR；并用；胎面胶
分类号：TQ330．1+2；TQ333．1；TQ333．2　文献标识码：B
文章编号：1000-890X(2000)12-0712-04

Study on properties of Sn-coupled S-SBR/BR blend

ZHANG Jian-ming ,ZHAO Su-he ,LINing
(Beijing University of Chemical Technology, Beijing 100029, China)

Abstract：The processibility, physical properties and dynamic heat build-up of Sn-eoupled S-SBR/BR blend were investigated. The results showed that the Mooney viscosity of Sn-coupled S-SBR with proper level of homogenizing agent was similar to that of BR; the flexibility, abrasion resistance and heat build-up of the blend improved, and its tensile strength decreased as the proportion of BR increased;the optimal balanced physical properties of the vulcanizate were obtained when the Sn-coupled S-SBR/BR with the blending ratio of 60/40 and the CB N234 were used.
Keywords：Sn-coupled S-SBR; BR; blend; tread