High-shock resistance polypropylene/polybutylene composite material as well as preparation method and purposes thereof

The invention relates to a high-shock resistance polypropylene/polybutylene composite material as well as a preparation method and purposes thereof, and belongs to the field of high molecular materials. Matrix resins of the composite material consist of 99-50 wt% of polypropylene resins and 1-50 wt% of polybutylene resins, and are added with inorganic fillers, antioxidant, light stabilizer, scrape resistant assistant, color masterbatch and nucleating agent. The composite material is prepared by adopting a two-screw extruder through an extrusion mixing method. The prepared high-shock resistance polypropylene/polybutylene composite material has prominent shock resistance and excellent rigidity and processing performance, and is suitable for automobile plastics, trays, electric wires, cables and electric appliance shells.