本发明公开了一种热解石墨/环氧树脂/超高分子量聚乙烯三明治结构复合材料及其制备方法。该三明治结构复合材料由热解石墨、环氧树脂、超高分子量聚乙烯组成；其中上层和下层均为超高分子量聚乙烯；中间层为热解石墨；环氧树脂为胶粘剂，用于粘连热解石墨和超高分子量聚乙烯。本发明以二维层状结构的热解石墨为导电填料，有效提高了超高分子量聚乙烯的抗静电能力；所采用的三明治结构可有效改善热解石墨与超高分子量聚乙烯之间的界面结合性，使得复合材料的物理力学性能优越性得到充分发挥,并且该复合材料的制备过程简单，易操作。

The invention discloses a pyrolytic graphite/epoxy resin/ultrahigh molecular weight polyethylene sandwich structure composite material and a preparation method thereof. The sandwich composite materialis composed of pyrolytic graphite, epoxy resin and ultrahigh molecular weight polyethylene, wherein an upper layer and a lower layer are the ultrahigh molecular weight polyethylene; a middle layer isthe pyrolytic graphite; and the epoxy resin is an adhesive for adhering the pyrolytic graphite to the ultrahigh molecular weight polyethylene. According to the invention, the pyrolytic graphite witha two-dimensional layered structure is used as a conductive filler to effectively improve antistatic capability of the ultrahigh molecular weight polyethylene; the used sandwich structure can effectively improve an interfacial bonding property between the pyrolytic graphite and the ultrahigh molecular weight polyethylene, so that superiority of physical and mechanical properties of the composite material is fully exerted, and preparation processes of the composite material are simple and easy to operate.