The invention discloses a high-gloss, high-rigidity and high-toughness polypropylene composite material for injection-molded products, as well as its preparation method and application. The high-gloss and high-strength polypropylene material consists of the following raw materials in parts by weight: 40~80 parts of general-purpose polypropylene, 5~10 parts of ultra-high melt flow index polypropylene, 5~10 parts of ultra-high molecular weight polyethylene powder, 5~30 parts of chopped basalt fiber yarn, 1~5 parts of maleic anhydride grafted polypropylene, 1~5 parts of maleic anhydride grafted POE, and 0.3~2 parts of anti-aging additives. The chopped basalt fiber yarn is added from the side feeding port, and the other components are added from the main feeding port of a twin-screw extruder, with the composite material obtained through melt extrusion and granulation. The high-gloss, high-rigidity and high-toughness polypropylene composite material of the invention exhibits excellent performance in three aspects: flexural modulus, Izod notched impact strength and glossiness.
Country Code: CN
Application Number: CN202311828706.2
