High-wear-resistant polypropylene composite material used for automobile interior trim and preparation method of polypropylene composite material

Abstract

The invention provides a high-wear-resistant polypropylene composite material used for automobile interior trim and a preparation method of the polypropylene composite material. The polypropylene composite material is made from, by weight, inorganic filling materials, polypropylene, a toughening agent, a wear-resisting agent, an anti-oxidant, a lubricant, a light stabilizer and toner. The preparation method comprises pre-treating a wear-resisting agent, putting the raw materials in a high-speed mixer according to a certain ratio for uniform mixing, putting the obtained mixture in a double screw extruder, and performing melt extrusion and granulation to obtain the high-performance polypropylene composite material. Based on a basic formula of a polypropylene composite material, proper alumina is taken as the wear-resisting agent, and subjected to pre-treatment. The prepared polypropylene composite material is good in wear resistance and low in smell, and has mechanical properties meet index requirement. The preparation method is simple, and is low in cost and wide in application range.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a polypropylene composite material for high wear-resistant automobile interior decoration and a preparation method thereof. Background technique [0002] In recent years, with the continuous promotion of the concept of lightweight automobiles, the proportion of plastic parts in the total weight of automobiles has continued to increase, and has now reached 15-20 parts. At present, many interior and exterior parts of automobiles are made of plastic. The plastics used in the interior and exterior parts of automobiles mainly include polypropylene (PP), acrylonitrile-butadiene-styrene terpolymer (ABS), polyamide (PA) and so on. Among them, PP materials are widely used in automotive interior parts, such as automotive dashboards, door panels, pillars, seat back panels and other components. However, the wear resistance of polypropylene is relatively poor. Some parts that are ...

AI Technical Summary

Problems solved by technology

However, the wear resistance of polypropylene is relatively poor. Some parts that are susceptible to external friction are prone to damage, which directly affects the aesthetics of the car. Therefore, how to improve the wear resistance of polypropylene has become a major material manufacturer's discussion. subject

Patent CN103756132A involves adding high molecular weight siloxane and nucleating agent to improve the wear resistance of polypropylene, but the cost is high; patent CN1990534A uses molybdenum disulfide and polytetrafluoroethylene to improve the wear resistance of polypropylene, but two Molybdenum sulfide is black, and its application in light-colored products is limited

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