Vulcanization Kinetics of Graphene/Styrene Butadiene Rubber Nanocomposites  

作　　者：Mao-zhu Tang Wang Xing 吴锦荣 黄光速 Hui Li Si-duo Wu 

机构地区：[1]State Key Laboratory of Polymer Material Engineering, College of Polymer Science and Engineering, Sichuan University

出　　处：《Chinese Journal of Polymer Science》2014年第5期658-666,共9页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51203096);the Ph.D.Programs Foundation of Ministry of Education of China(No.20100181120020);Sichuan University

摘　　要：This paper presents the influence of graphene on the vulcanization kinetics of styrene butadiene rubber （SBR） with dicumyl peroxide. A curemeter and a differential scanning calorimeter were used to investigate the cure kinetics, from which the kinetic parameters and apparent activation energy were obtained. It turns out that with increasing graphene loading, the induction period of the vulcanization process of SBR is remarkably reduced at low graphene loading and then levels off; on the other hand, the optimum cure time shows a monotonous decrease. As a result, the vulcanization rate is suppressed at first and then accelerated, and the corresponding activation energy increases slightly at first and then decreases. Upon adding graphene, the crosslinking density of the nanocomposites increases, because graphene takes part in the vulcanization process.This paper presents the influence of graphene on the vulcanization kinetics of styrene butadiene rubber （SBR） with dicumyl peroxide. A curemeter and a differential scanning calorimeter were used to investigate the cure kinetics, from which the kinetic parameters and apparent activation energy were obtained. It turns out that with increasing graphene loading, the induction period of the vulcanization process of SBR is remarkably reduced at low graphene loading and then levels off; on the other hand, the optimum cure time shows a monotonous decrease. As a result, the vulcanization rate is suppressed at first and then accelerated, and the corresponding activation energy increases slightly at first and then decreases. Upon adding graphene, the crosslinking density of the nanocomposites increases, because graphene takes part in the vulcanization process.

关 键 词：GRAPHENE Styrene butadiene rubber Vulcanization kinetics. 

分 类 号：TQ330.1[化学工程—橡胶工业]