Improving the Dynamic Mechanical Properties of XNBR Using ILs/KH550-Functionalized Multilayer Graphene

Duoli Chen; Chaoliang Gan; Xiaoqiang Fan; Lin Zhang; Wen Li; Minhao Zhu; Xin Quan

doi:10.3390/ma12172800

Improving the Dynamic Mechanical Properties of XNBR Using ILs/KH550-Functionalized Multilayer Graphene

Materials (Basel). 2019 Aug 30;12(17):2800. doi: 10.3390/ma12172800.

Authors

Duoli Chen^{1

2}, Chaoliang Gan¹, Xiaoqiang Fan³, Lin Zhang², Wen Li², Minhao Zhu^{4

5}, Xin Quan⁶

Affiliations

¹ Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China.
² Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
³ Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China. fxq@home.swjtu.edu.cn.
⁴ Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China. zhuminhao@swjtu.cn.
⁵ Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China. zhuminhao@swjtu.cn.
⁶ College of Mechanical and Electrical Engineering, Yangtze Normal University, Chongqing 408100, China.

Abstract

Graphene has been considered an ideal nanoscale reinforced phase for preparing high-performance composites, but the poor compatibility and weak interfacial interaction with the matrix have limited its application. Here a highly effective and environmentally friendly method for the functionalization of graphene is proposed through an interaction between as-exfoliated graphene and (3-aminopropyl) triethoxysilane (KH550), in which 1-butylsulfonate-3-methylimidazolium bisulfate (BSO₃HMIm)(HSO₄) ionic-liquids-modified graphene was prepared via an electrochemical exfoliation of graphite in (BSO₃HMIm)(HSO₄) solution, then (BSO₃HMIm)(HSO₄)-modified graphene as a precursor was reacted with amine groups of KH550 for obtaining (BSO₃HMIm)(HSO₄)/KH550-functionalized graphene. The final products as filler into carboxylated acrylonitrile‒butadiene rubber (XNBR) improve the dynamic mechanical properties. The improvement in the dynamic mechanical properties of the nanocomposite mainly depends on high interfacial interaction and graphene's performance characteristics, as well as a good dispersion between functionalized graphene and the XNBR matrix.

Keywords: damping property; graphene; ionic liquids; modification.