采用 HBr/H2 O2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/H2 O2 ,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 mechani-cal properties.Results showed that.the graphene oxide well dispersed in BCR matrix,the free radical graft co-polymerization of —COOH and —OH on the surface of graphene oxide onto BCR,which improve the mechani-cal properties of brominated neoprene Compared with BCR:the mooney viscosity of O-BCR improved 1 6 1 per-cent;the tensile strength of O-BCR improved 31 percent;the stretching strength of O-BCR improved 46 per-cent;the breaking strength of O-BCR improved 1 1 percent;the permanent deformation of O-BCR improved 33 percent.
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