Dispersing agent for epoxy resin-graphene system and preparation method of dispersing agent

The invention relates to the technical field of composite materials, in particular to a dispersing agent for an epoxy resin-graphene system and a preparation method thereof.The dispersing agent for the epoxy resin-graphene system is structurally provided with a main chain of a large pi bond structure, and the conductivity of the dispersing agent is improved; the dispersing agent has an amino ring structure, so that the impact resistance and the curing speed of the epoxy resin-graphene composite material after the dispersing agent is used are improved; the dispersing agent does not react with the graphene to change the body structure of the graphene, and the dispersing property and the mechanical property of the graphene are improved by utilizing the interaction and attraction of a pi-pi bond and the graphene. 本发明涉及复合材料技术领域，特别涉及一种环氧树脂-石墨烯体系用分散剂及其制备方法，本发明的环氧树脂-石墨烯体系用分散剂结构中具大π键结构的主链，提搞了分散剂的导电能力；具有氨基环状结构，提升了使用分散剂后的环氧树脂-石墨烯复合材料的抗冲击性能和固化速度；分散剂不与石墨烯发生反应改变石墨烯本体结构，利用π-π键与石墨烯作用吸引，使石墨烯分散性能和力学性能提升。