国产星形支化溴化丁基橡胶在全钢子午线轮胎气密层中的应用  

Application of Domestic Star Branched BIIR in Inner Liner of All-steel Radial Tires

作　　者：胡金龙 金振涣 江伟 魏艳 彭杰 HU Jinlong;JIN Zhenhuan;JIANG Wei;WEI Yan;PENG Jie(Zhongce Rubber Group Co.,Ltd,Hangzhou 310018,China;Zhongce Rubber(Jiande)Co.,Ltd,Hangzhou 311607,China)

机构地区：[1]中策橡胶集团股份有限公司,浙江杭州310018 [2]中策橡胶(建德)有限公司,浙江杭州311607

出　　处：《轮胎工业》2025年第5期282-286,共5页Tire Industry

摘　　要：研究国产星形支化溴化丁基橡胶(BIIR)2302S在全钢子午线轮胎气密层中的应用。结果表明:在气密层中用BIIR2302S等量替代BIIR2302,胶料的门尼粘度降低,焦烧时间延长,加工性能提升,物理性能略有降低,气密性能在常温时提高明显、高温时相当,Payne效应和60℃时的损耗因子(tanδ)减小,成品轮胎的耐久性能提高;BIIR2302S等量替代BIIR2302的同时环烷油用量减小2份,胶料的加工性能变化不大,硫化胶的物理性能相当,气密性能进一步提高,Payne效应和60℃时的tanδ进一步减小。The application of domestic star branched brominated butyl rubber(BIIR)2302S in the inner liner of all-steel radial tire was studied.The results showed that by replacing BIIR2302 with BIIR2302S in equal amounts in the inner liner compound,the Mooney viscosity of the compound decreased,the scorch time was extended,the processing performance was improved,and physical properties slightly decreased,the air tightness performance was improved significantly at room temperature and remained comparable at high temperature,the Payne effect and the loss factor(tanδ)at 60℃were reduced,and the durability of the finished tire improved.When BIIR2302S was used to replace BIIR2302 in equal amounts while reducing the amount of cyclic oil by 2 phr,the processing performance of the compound did not change much,the physical properties of the vulcanizate were equivalent,and the airtightness performance was further improved,and the Payne effect and tanδat 60℃were further reduced.

关 键 词：溴化丁基橡胶 全钢子午线轮胎 气密层 物理性能 气密性能 

分 类 号：TQ333.6[化学工程—橡胶工业] TQ336.11