This invention provides a high-rigidity, low-shrinkage talc-filled flame-retardant polypropylene material and its preparation method, belonging to the field of polypropylene composite materials technology. The high-rigidity, low-shrinkage talc-filled flame-retardant polypropylene material is prepared by mixing polypropylene, low-halogen flame retardant, ultrafine talc powder, coupling agent, compatibilizer, nucleating agent, lubricant, and antioxidant, and then extruding and granulating them in a twin-screw extruder. The ultrafine talc powder is pre-treated with a coupling agent. This invention overcomes the shortcomings of existing technologies. The prepared low-halogen flame-retardant polypropylene has the characteristics of high rigidity, low shrinkage, high flame retardancy efficiency, and low cost, and the preparation process is simple, low-halogen, and environmentally friendly.
Country Code: CN
Application Number: CN202311582203.1
