Special automobile exterior material prepared from TPO skin reclaimed material and preparation method thereof

Abstract

The invention discloses an automobile exterior trimming special material prepared from a TPO skin reclaimed material and a preparation method thereof. Raw materials comprise: a TPO skin reclaimed material, copolymerized PP, a molecular weight regulator, a flexibilizer, a compatilizer, a weather-resistant agent, a filler, an antioxidant and a colorant. The preparation method comprises the followingsteps: mixing and stirring the TPO skin reclaimed material and the molecular weight regulator, adding the copolymerized PP, the flexibilizer, the weather-resistant agent, the compatilizer, the antioxidant, the filler and the colorant, mixing and stirring the components; and feeding the mixture into a double-screw extruder for perfomring extrusion, cooling, drying and granulation. The TPO skin regenerated material is creatively applied to production of special materials for automobile exterior decorations such as automobile fenders and wheel covers, so that the product can completely meet theworking condition performance requirements of the automobile exterior decorations such as the automobile fenders and the wheel covers, so that high-impact-resistance PP or PE materials are replaced, the problems of resource waste, environmental pollution and the like can be relieved, the production cost can be effectively reduced, and economic benefit is increased.

Description

technical field [0001] The invention relates to the technical field of automobile spare parts manufacturing, in particular to a special material for automobile exterior decoration and a preparation method thereof. Background technique [0002] The working conditions of automobile fenders and wheel covers are extremely harsh, and their materials are required to have properties such as cold resistance, wear resistance, stress crack resistance, atmospheric aging resistance, solvent resistance and chemical corrosion resistance, so as to adapt to flying stone impact resistance, aging resistance, Anti-shattering and other requirements, but also meet the conditions of lightweight and easy processing and molding. [0003] At present, automotive fenders and wheel housing exterior products generally use rigid, low-strength, high-impact PP or PE materials. Although the TPO skin recycled material has ultra-high impact resistance, cold resistance, environmental stress crack resistance, ...

AI Technical Summary

Problems solved by technology

[0003] At present, automotive fenders and wheel housing exterior products generally use rigid, low-strength, high-impact PP or PE materials

Although the TPO skin recycled material has ultra-high impact resistance, cold resistance, environmental stress crack resistance, solvent resistance and chemical corrosion resistance, but due to the relatively poor fluidity of the TPO skin recycled material, injection molding processing is relatively difficult. And the weather resistance is insufficient, the strength, rigidity and heat resistance are also poor

Therefore, it has never been seen to use recycled foamed TPO skin regeneration materials—that is, TPO skin regeneration materials to produce automobile fenders and wheel cover exterior products