Friction-reducing and wear-resistant polyamide-imide composite material, preparation method thereof and application method therefor

A friction-reducing and wear-resistant polyamide-imide composite material, comprising the following raw materials in part by weight:

• 100 parts of basic slurry, 0.1-20 parts of functional filler, 0-50 parts of diluent, 0.1-1 part of defoamer, and 0.1-1 part of dispersant;
• wherein the basic slurry is aqueous polyamide-imide emulsion;
• the functional filler is a biomass carbon composite molybdenum disulfide material treated with a siloxane coupling agent, and a source of biomass carbon is derived from cattail-derived carbon fibers;
• wherein a preparation method of the cattail-derived carbon fibers comprises:
• removing impurifies from surfaces of cattail fibers to obtain impurifies-removed cattail fibers, drying the impurifies-removed cattail fibers at a temperature of 700° C. to 900° C. for carbonization for 2 hours (h) to 4 h, to obtain the cattail-derived carbon fibers;
• and the cattail-derived carbon fibers have a microstructure and nanostructure;
• and
• wherein a preparation method of the biomass carbon composite molybdenum disulfide material comprises:
• mixing the cattail-derived carbon fibers, ammonium molybdate tetrahydrate and thiourea in water to obtain a mixed solution;
• and performing a hydrothermal reaction on the mixed solution to obtain a crude product, and recycling and purifying the crude product to obtain the biomass carbon composite molybdenum disulfide material.