两种溶聚丁苯橡胶在轮胎胎面胶中的应用  

Application of Two Kinds of SSBR in Tire Tread Compound

作　　者：陈松 李红卫 兰金华 刘华侨 CHEN Song;LI Hongwei;LAN Jinhua;LIU Huaqiao(TTA(Qingdao)Tire Technology Co.,Ltd,Qingdao 266061,China;Jiangsu General Science Technology Co.,Ltd,Wuxi 214000,China)

机构地区：[1]特拓(青岛)轮胎技术有限公司,山东青岛266061 [2]江苏通用科技股份有限公司,江苏无锡214000

出　　处：《橡胶科技》2023年第2期74-78,共5页Rubber Science and Technology

摘　　要：研究低结合苯乙烯和高乙烯基含量溶聚丁苯橡胶(SSBR)E680与高结合苯乙烯和低乙烯基含量SSBR HP755R在轮胎胎面胶中的应用。结果表明:与SSBR HP755R胶料相比,SSBR E680胶料的焦烧时间和t90缩短;SSBR E680硫化胶的300%定伸应力和拉伸强度略大;两种胶料挤出工艺性能无明显区别;SSBRE680胶料在0℃时的损耗因子(tanδ)略大,在60℃时的tanδ略小,表明SSBRE680胶料的抗湿滑性能较好、生热和滚动阻力较低。In this study,the application of two kinds of solution polymerized styrene butadiene rubber(SSBR)E680 and HP755R,in tire tread compounds was studied.SSBR E680 had low bound styrene content and high vinyl content,while SSBR HP755R had high bound styrene content and low vinyl content.The results showed that,compared with SSBR HP755R,the scorch time and t90 of the SSBR E680 compound were shorter,and the modulus at 300%elongation and tensile strength of the SSBR E680 vulcanizate were slightly higher.There was no obvious difference in the extrusion process properties between the two.Meanwhile,the loss factor(tanδ)of the SSBR E680 compound at 0℃was slightly larger,and its tanδat 60℃was slightly smaller which indicated that the SSBR E680 compound had better wet skid resistance,lower heat build-up and lower rolling resistance.

关 键 词：溶聚丁苯橡胶 结合苯乙烯含量 乙烯基含量 胎面胶 物理性能 流动性 动态力学性能 

分 类 号：TQ333.1[化学工程—橡胶工业]