Polytetrafluoroethylene composite coating

The invention discloses a polytetrafluoroethylene composite coating. The polytetrafluoroethylene composite coating is characterized by comprising a filling material and an adhesive, wherein the filling material is composed of an organic filling material and an inorganic filling material; the organic filling material comprises polyphenylene sulfide; the inorganic filling material comprises chromiumdioxide and copper powder; the organic filling material accounts for 20 to 23%; the chromium dioxide accounts for 3 to 6%; and the copper powder is bronze powder and accounts for 30% of the inorganicfilling material. The performance of the composite coating is improved by adding a graphene component. 本发明公开了种聚四氟乙烯复合涂料，其特征在于，包括填料和粘合剂；所述填料包括有机填料和无机填料，有机填料包括聚苯硫醚树脂；所述无机填料包括二氧化铬和铜粉；所述有机填料占比为20％-23％；所述二氧化铬占比为3％-6％；所述铜粉为青铜分，占比为无机填料的30％。本发明通过添加石墨烯成分，增强了符合涂料的性能。