TDD/CM硫化反应动力学研究  

TDD/CM vulcanization kinetics

作　　者：江珂[1] 宋秋生[1] 方文超[1] 周稳[1] 

机构地区：[1]合肥工业大学化学与化工学院,安徽合肥230009

出　　处：《弹性体》2016年第2期53-57,共5页China Elastomerics

摘　　要：以2-巯基-5-甲基-1,3,4-噻二唑（TDD）为硫化剂,以硫化仪为研究手段,根据硫化仪测定的不同温度下TDD/氯化聚乙烯弹性体（CM）的硫化曲线与硫化特征参数,对TDD/CM体系的硫化动力学进行了研究。从动力学角度对该体系在150～180℃范围内的热硫化期及平坦硫化期2个阶段的硫化反应动力学特性进行了分析。结果表明,热硫化期和平坦硫化期的表观反应级数n数值范围分别为1.03～1.19和0.33～0.55;其表观反应活化能分别为33.3kJ/mol和50.6kJ/mol。In this paper,5-mercapto-2-monobenzoate thioestet-1,3,4-thiadiazole（TDD）was used to cure chlorinated polyethylene elastomer（CM）.Curing kinetics of TDD/CM system was studied via an oscillating disk rheometer at different temperatures（150～180℃）.Based on the curing curves and vulcanization characteristic parameters,the kinetic characteristic of TDD/CM system in heat curing period and flat curing period were studied.The results showed that,the apparent reaction order n of TDD/CM system in heat curing period and flat curing period were 1.03～1.19 and 0.33～0.55,and the apparent reaction activation energy was 33.3kJ/mol and 50.6kJ/mol respectively.

关 键 词：TDD CM 硫化 动力学 反应级数 

分 类 号：TQ333.92[化学工程—橡胶工业]