Citation: Mao-zhu Tang, Wang Xing, Jin-rong Wu, Guang-su Huang, Hui Li, Si-duo Wu. Vulcanization Kinetics of Graphene/Styrene Butadiene Rubber Nanocomposites[J]. Chinese Journal of Polymer Science, ;2014, 32(5): 658-666. doi: 10.1007/s10118-014-1427-8 shu

Vulcanization Kinetics of Graphene/Styrene Butadiene Rubber Nanocomposites

1.
State Key Laboratory of Polymer Material Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China

Received Date: 6 August 2013
Revised Date: 11 November 2013

Fund Project: This work was 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) and Sichuan University.

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.
- Graphene,
- Styrene butadiene rubber,
- Vulcanization kinetics
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