Compoisite material of polypropylene resin for case of household office electrical equipment and injection products thereof

Abstract

The invention discloses a polypropylene resin composite, containing polypropylene resin 30-90 wt%, microball 5-70wt%, inorganic micron or nano particles 0-50 wt% and microfiber 0-50 wt%. The composite not only maintains original excellent properties of polypropylene but also has good molding property, balanced rigidity / flexibility, excellent surface quality of components made by injection molding, high surface hardness, property of uneasily scratching, and excellent molding processing property and lower molding shrinkage, able to make direct injection molding in original HIPS and ABS modules, thus replacing HIPS and ABS. It can be used in preparing the outer casing of home appliances and the cases office appliances, especially the front / back cases of TV sets, the outer casing of the remote controllers, etc as well as the cases of duplicating maclines, monitors, etc.

Description

technical field [0001] The invention relates to a polymer composite material, in particular to a polypropylene resin composite material. The invention also relates to the use of the aforementioned materials. Background technique [0002] Polypropylene has excellent mechanical properties and good processability, heat resistance, and chemical resistance, especially polypropylene with low density and low price, so polypropylene is widely used in the household electronic appliances / office products industry and in automobiles part. With the advancement of technology, the above-mentioned industries have higher and higher requirements on the surface of materials. In the traditional home appliance industry that uses HIPS and ABS as the shell, especially the TV industry, due to fierce competition, there are more and more calls for using new materials to reduce costs. high. [0003] In order to improve the rigidity, toughness and surface quality of composite materials, the method o...

AI Technical Summary

Problems solved by technology

[0004] Although some properties of the composite material prepared by the above method have been improved, the scratch resistance of the material is very poor, the shrinkage rate is too large to directly use the original mold, and the overall mechanical properties are not balanced, or the flow of the material Poor performance, poor surface quality of injection molded products; or the toughness of the material is not enough, it is difficult to meet the physical requirements of the whole machine