High impact resistant alloy material for automobile bumpers

Abstract

The invention discloses a high impact resistant alloy material for automobile bumpers. The alloy material comprises the following substances in parts by weight: 20-25 parts of polypropylene, 1-6 parts of nucleating agent, 1-8 parts of silanes, 1-8 parts of polyvinyl ester, 2-9 parts of metal aluminium powder, 1-9 parts of pearl powder, 3-8 parts of thickener, 2-4 parts of wetting agent, 1-3 parts of dispersing agent, 2-5 parts of mildewproof agent, 1-8 parts of antioxidant, 1-7 parts of anti-aging agent MB, 1-7 parts of glycerol triglyceride and 10-14 parts of zinc oxide. The alloy material has the beneficial effects that the strength and toughness of the alloy material are obviously improved; and the prepared modified polypropylene material is widely suitable for automobile bumpers and has excellent performances.

Description

Technical field [0001] The invention relates to a high-impact resistant automobile bumper alloy material. Background technique [0002] Automobile bumper is a kind of large surface area and thin-walled large-scale structural parts with complex shapes. It not only requires excellent high and low temperature impact toughness, rigidity, aging resistance, heat resistance, cold resistance, but also oil and lubricant resistance. , Paint and other properties. The most important thing is to have high impact toughness and good processing flow properties. Polypropylene (PP) has been increasingly used in automobiles due to its advantages of low density, easy molding and processing, and recyclability. Especially for the preparation of automobile bumpers, it is the largest and fastest growing plastic used in automobiles. Variety of plastics. However, PP has poor low-temperature brittleness, high molding shrinkage, and poor impact resistance. Therefore, it needs to be modified when used in ...

AI Technical Summary

Problems solved by technology

However, PP has poor low-temperature brittleness, large molding shrinkage, and poor impact resistance. Therefore, it needs to be modified when used in automobile bumpers.