Preparation method of PA kaolin composite material

The invention relates to a preparation method of a PA kaolin composite material. The raw materials comprise kaolin, D-81, WD-50, KH-570, PA, an antioxidant, a stabilizing agent, and a lubricant. Equipment comprises a constant temperature drying box, a high speed mixing machine with heating function, a double screw extruder, a baking oven, an injection machine, and the like. The preparation methodcomprises steps such as coupling, drying, granulation, and moulding. According to the preparation method, calcined kaolin is modified, and optimization of the ratio of raw materials in the preparationmethod is adopted, modified kaolin and PA are subjected to mechanism blending extrusion, so that the novel engineering plastic composite material with high strength and excellent performance is produced, modified kaolin high value utilization is realized, the prepared composite material is excellent in comprehensive mechanism properties, the preparation method is simple, excellent reaction selectivity is achieved, and the