乳液共沉法丁苯橡胶/有机蒙脱土纳米复合材料在轮胎胎面中的应用

张洪林　 宋国君　 谷正　 王振太　 李正勇　 李天真　 李迎　 邱艳平　 贾凤玲　 高增亮　

摘　要：用乳液共沉法在中试装置上制备了丁苯橡胶/有机蒙脱土(SBR/OMMT)乳液共沉胶,研究了纳米复合材料的微观结构、力学性能、磨耗性能、加工性能等,讨论了其替代SBR在半钢子午线轮胎胎面中的应用效果.透射电子显微镜观察表明制备的乳液共沉胶是一种插层型纳米复合材料,OMMT与橡胶基质结合得较好;乳液共沉胶的拉伸强度、撕裂强度、硬度、回弹性等与SBR 1502基本相当,扯断伸长率和压缩永久变形有所增大,耐磨耗性能大幅度提高;以乳液共沉胶替代SBR 1502及部分炭黑在半钢子午线轮胎胎面中的应用效果良好,胶料的力学性能、加工性能及成品胎性能均能满足工业生产要求.
关键词：丁苯橡胶;有机蒙脱土;乳液共沉法;纳米复合材料;力学性能;磨耗性能;轮胎胎面
分类号：TQ333.1 　文献标识码：B
文章编号：1000-1255(2009)04-0275-06

Application of styrene-butadiene rubber/organic montmorillonite nanocomposites synthesized by emulsion coprecipitated method in tire tread

Zhang Honglin（Rubber Factory of Qilu Petrochemical Company,SINOPEC,Zibo 255438,China）　 Song Guojun（Institute of Polymer Materials,Qingdao University,Qingdao 266071,China）　 Gu Zheng（Institute of Polymer Materials,Qingdao University,Qingdao 266071,China）　 Wang Zhentai（Qingdao Yellow Sea Rubber Group Limited Liability Company,Qingdao 266041,China）　 Li Zhengyong（Rubber Factory of Qilu Petrochemical Company,SINOPEC,Zibo 255438,China）　 Li Tianzhen（Rubber Factory of Qilu Petrochemical Company,SINOPEC,Zibo 255438,China）　 Li Ying（Rubber Factory of Qilu Petrochemical Company,SINOPEC,Zibo 255438,China）　 Qiu Yanping（Rubber Factory of Qilu Petrochemical Company,SINOPEC,Zibo 255438,China）　 Jia Fengling（Rubber Factory of Qilu Petrochemical Company,SINOPEC,Zibo 255438,China）　 Gao Zengliang（Rubber Factory of Qilu Petrochemical Company,SINOPEC,Zibo 255438,China）　

Abstract：Styrene-butadiene rubber(SBR)/organic montmorillonite(OMMT) nanocomposites were synthesized by emulsion coprecipitation method in pilot plant. The structure, mechanical properties, abrasion properties and processing properties of the nanocomposites were studied. And the application of the nanocomposites in tread of semi-steel radical tire of SBR 1502 was investingated. The results of transmission electron microscope showed that the purpose products were intercalation nanocomposites, and the bond between OMMT and SBR matrix was better. The SBR/OMMT nanocomposites had similar tensile strength, tear strength, hardness and resilience to SBR 1502, while the elongation at break, compression set and abrasion properties were higher. The effect of SBR/OMMT composites in the application of tread of semi-steel radical tire instead of SBR 1502 and carbon black was good, and the mechanical properties, processing properties of the composites and the performance of the finished tire could meet requirements of production.
Keywords：styrene-butadiene rubber; organic montmorillonite; emulsion coprecipitated method; nanocomposite; mechanical property; abrasion property; tire tread