High-strength and corrosion-resistant car bumper

Abstract

The invention discloses a high-strength and corrosion-resistant car bumper, being characterized in that raw material components are composed of, in parts by weight, 20-30 parts of polypropylene, 15-20 parts of ABS resin powder, 8-12 parts of poly-4-methyl-1-pentene, 6-8 parts of maleic anhydride, 6-8 parts of strengthening agent, 8-10 parts of graphite powder, 2-4 parts of flame retardant, 3-5 parts of hollow glass microballoon, 2-4 parts of calcium sulphate whisker, 2-3 parts of corrosion inhibitor, 2-4 parts of active calcium and 2-4 parts of stearic acid. According to the invention, polypropylene is modified by adopting the polypropylene and the ABS resin powder, thus the compatibility of composite materials is improved, the impact strength of the car bumper material is improved by the strengthening agent and the like, thus the strength and toughness are significantly enhanced, the effect of elastic buffer can be achieved when a car is collided, the corrosion inhibitor is added, thus the product is unlikely to be corroded by the external environment and the service life of the bumper is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of automobile bumpers, in particular to a high-strength anti-corrosion automobile bumper. Background technique [0002] The plastics used in automobile bumpers are generally made of two types of materials, polyester and polypropylene, and are made by injection molding. For example, the bumper of the Peugeot 405 sedan is made of polyester materials and made by reaction injection molding. The bumpers of Volkswagen's Audi 100, Golf, Shanghai's Santana, and Tianjin's Xiali are made of polypropylene-based materials by injection molding. In foreign countries, there is also a kind of plastic called polycarbonate, which is infiltrated into alloy components and adopts the method of alloy injection molding. The processed bumper not only has high strength and rigidity, but also has the advantage of being weldable, and has good coating performance. It is used more and more in cars. Since most of the main materials cu...

AI Technical Summary

Problems solved by technology

Since most of the main materials currently used are polypropylene, the disadvantage is that the mechanical properties are poor, and its anti-collision performance cannot meet the ideal requirements.