A kind of wear-resistant polypropylene composite material and preparation method thereof

Abstract

The invention discloses a wear-resisting polypropylene composite material and a preparation method thereof. The wear-resisting polypropylene composite material is composed of the following raw materials in percentage by weight: 46-95 parts of polypropylene, 0-25 parts of inorganic fillers, 0-15 parts of a toughening agent POE (Polyoxyethylene), 1-10 parts of a wear-resisting agent, 0.1-0.5 part of a nucleating agent, 0.1-1 part of an antioxidant, 0.1-1 part of a light stabilizing agent and 0-2 parts of color toner or color master batch. The raw materials are put into a high-speed mixer to be mixed for 3-5 minutes; the mixed raw materials are put into a double-screw extruder; then mixed raw materials are subjected to melt extrusion and granulation. The process is as follows: the temperature of a first zone is 190-200 DEG C, the temperature of a second zone is 200-210 DEG C, the temperature of a third zone is 210-220 DEG C and the temperature of a fourth zone is 205-215 DEG C; the staying time of a whole extruding process is 1-2 minutes and the pressure is 12-18MPa. According to the wear-resisting polypropylene composite material and the preparation method thereof, the wear-resisting agent and the nucleating agent are added in a basic formula of the polypropylene composite material so as to prepare the polypropylene material with a good wear-resisting performance. The wear-resisting polypropylene composite material has the advantages that the wear-resisting performance of the material is guaranteed and physical and mechanical properties of the materials are basically not influenced; the preparation process is simple and the production cost is low.

Description

technical field [0001] The invention relates to a wear-resistant polypropylene composite material and a preparation method thereof, which can be used for interior and exterior trim parts of automobiles and belongs to the technical field of polymer modification and processing. Background technique [0002] Polypropylene has good physical, mechanical, chemical properties and easy processing properties. At the same time, it is light, cheap and easy to recycle, so it is widely used in interior and exterior parts of automobiles. However, the wear resistance of polypropylene material is poor. Some parts that are susceptible to constant friction from the outside, such as brake light housings, horn covers, etc., will be damaged due to friction, which directly affects the appearance of the car and seriously affects its quality. In the application of automotive trims, polypropylene materials need to be improved to meet the requirements of product wear resistance. [0003] There have ...

AI Technical Summary

Problems solved by technology

Although the above methods have solved a certain wear resistance in specific components and systems, they cannot fundamentally solve the wear resistance of polypropylene materials.

Images