溴化丁基橡胶的硫黄硫化反应动力学研究  

Kinetics of Sulfur Cured BIIR

作　　者：李新[1] 李培军[1] 张萍[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《橡胶工业》2014年第10期581-585,共5页China Rubber Industry

摘　　要：研究溴化丁基橡胶(BIIR)的硫黄硫化反应动力学。结果表明:硫黄/促进剂DM、硫黄/氧化锌、硫黄、硫黄/促进剂DM/氧化锌的硫化速率常数依次增大;硫黄、硫黄/促进剂DM、硫黄/氧化锌和硫黄/促进剂DM/氧化锌硫化反应活化能依次减小;硫黄/促进剂DM/氧化锌硫化BIIR硫化胶的综合物理性能较好,协同硫化作用明显。The sulfur vulcanization kinetics of BIIR was investigated. The results showed that,the curing rate constant increased in the order of sulfur/accelerator DM curing system〈 sulfur/zinc oxide〈sulfur〈sulfur/accelerator DM/zinc oxide. The reaction activation energy decreased in the order of sulfur alone〉sulfur/accelerator DM〉sulfur/zinc oxide〉sulfur/accelerator DM/zinc oxide. The comprehensive physical properties of BIIR vulcanized by sulfur/accelerator DM/zinc oxide were the best,while sulfur and the co-agents showed a significant synergetic effect on the vulcanization.

关 键 词：溴化丁基橡胶 硫黄硫化体系 硫化反应动力学 

分 类 号：TQ333.6[化学工程—橡胶工业]