Polyether-ether-ketone based wear-resistant composite material and preparation method thereof

The invention provides a polyether-ether-ketone based wear-resistant composite material and a preparation method thereof, and relates to the technical field of production of a functional composite material. Polyether-ether-ketone based wear-resistant composite granules are prepared by mixing modified graphene nanometer microsheets, polyether-ether-ketone and polytetrafluoroethylene (PTFE), puttingthe mixture into a double-screw extruding machine, performing melt mixing and performing extrusion granulation. According to the polyether-ether-ketone (PEEK) based wear-resistant composite material,a PTFE phase which takes on an 'island' structure in a PEEK matrix as well as nanosheet-shaped graphene microsheets which are dispersed in the matrix uniformly form the surface of a dense nanometer composite transfer membrane consisting of PEEK-PTFE-graphene in the friction process, so that excellent wear resistance is achieved; meanwhile, due to the 'sea island' structure appearance and the nanometer composite microstruc