The present invention relates to a preparation method of environmentally friendly lightweight anti animal bite polypropylene composite material, which involves uniformly mixing PP resin I, plant fiber masterbatch, bittering agent, antioxidant, dispersant I, compatibilizer I, and weather resistant agent, and then melt extrusion granulation to obtain environmentally friendly lightweight anti animal bite polypropylene composite material; Plant fiber masterbatch is obtained by adding PP resin II premix and pre impregnated plant fibers from the main feeding port and side feeding port of a twin-screw extruder, respectively, for melt extrusion granulation; PP resin II premix is obtained by uniformly mixing PP resin II, compatibilizer II, antioxidant, and dispersant II. In the preparation method of the present invention, plant fibers are pre impregnated with an impregnating agent. Through the combined action of low melting point compatibilizer II and polar dispersant II, the risk of carbonization is reduced, and plant fiber masterbatch with good dispersibility is prepared, resulting in excellent product performance.
Country Code: CN
Application Number: CN202311811919.4
