氧化石墨烯改性溴化氯丁橡胶的研究  

The study of graphene oxide modified brominated chloroprene rubber

作　　者：刘作华[1] 刘敏[1] 杜军[1] 陶长元[1] 范兴[1] 

机构地区：[1]重庆大学化学化工学院,重庆400044

出　　处：《功能材料》2016年第B12期49-52,共4页Journal of Functional Materials

基　　金：重庆市自然科学基金重点资助项目(CSTC2011BA4017)

摘　　要：采用HBr/H2O2溴化氧化体系对氯丁橡胶(CR)进行改性,得到溴化氯丁橡胶(BCR),并对溴化氯丁橡胶进行氧化石墨烯(GO)掺杂改性,得到GO/BCR复合物(O-BCR)。通过电镜扫描(SEM)、红外光谱(FT-IR)、紫外光谱(UV)对样品结构进行表征,并检测其力学性能。结果表明,GO以单片形式均匀分散在BCR基体中,GO表面的—COOH,—OH与BCR发生自由基接枝聚合,提高了溴化氯丁橡胶的力学性能。O-BCR与BCR相比,门尼粘度提高了161%;抗张强度提高了31%;500%定伸强度提高了46%;扯断强度提高了11%;永久变形提高了33%。Brominatied chloroprene rubber(BCR) was prepared by Modification process of chloroprene rubber(CR) via HBr/H2O2,graphene oxide(GO) reinforced brominatied chloroprene rubber was prepared by means of mixing(O-BCR). The structure of samples was characterized by SEM,FT-IR,UV and detected the mechanical properties. Results showed that.the graphene oxide well dispersed in BCR matrix,the free radical graft copolymerization of —COOH and —OH on the surface of graphene oxide onto BCR,which improve the mechanical properties of brominated neoprene Compared with BCR:the mooney viscosity of O-BCR improved 161 percent; the tensile strength of O-BCR improved 31 percent; the stretching strength of O-BCR improved 46 percent; the breaking strength of O-BCR improved 11 percent; the permanent deformation of O-BCR improved 33 percent.

关 键 词：溴化氯丁橡胶 氧化石墨烯 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]