▎ 摘　　要

NOVELTY - Preparing composite polytetrafluoroethylene conductive material involves mixing polytetrafluoroethylene and modified graphene microchip at high speed to form homogeneous mixed powder. The modified graphene microchip is a spindle-shaped calcium carbonate intercalated modified graphene microchip. The mixed powder is placed in a mold, cold forming under the pressure of 30 to 50 MPa, and keeping the pressure for 2 to 5 minutes, removing the film and obtaining the sample. USE - Method for preparing composite polytetrafluoroethylene conductive material (claimed). ADVANTAGE - The method enables to prepare composite polytetrafluoroethylene conductive material, which improves the crystallization behavior of PTFE by filling the graphene microchip, provides mechanical property of PTFE by regulating the interfacial bonding force between the graphene microchip and PTFE, provides excellent wear resistance and electrical conductivity and electrical conductivity. DETAILED DESCRIPTION - Preparing composite polytetrafluoroethylene conductive material involves mixing polytetrafluoroethylene and modified graphene microchip at high speed to form homogeneous mixed powder. The modified graphene microchip is a spindle-shaped calcium carbonate intercalated modified graphene microchip. The mixed powder is placed in a mold, cold forming under the pressure of 30 to 50 MPa, and keeping the pressure for 2 to 5 minutes, removing the film and obtaining the sample. The sample is placed in a muffle furnace, raising the temperature to 370-380 degrees C at a heating rate of 150-200 degrees C/hour, holding for 2 hours, and then cooling with the furnace to room temperature to obtain a composite polytetrafluoroethylene conductive material.