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

A technology of recycled materials and special materials, used in vehicle parts, superstructure sub-assemblies, transportation and packaging, etc., can solve the problems of poor rigidity and heat resistance, low rigidity, low strength, insufficient weather resistance, etc., to achieve environmental resistance. The effect of stress cracking, improving overall performance and improving flow performance

Pending Publication Date: 2020-12-08
广西鑫深科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Below in conjunction with example, the present invention is described in further detail;

[0043] Following table 1 is embodiment 1-embodiment 6, and table 3 is the raw material weight percent composition of comparative example 1-comparative example 6, and table 2 is the performance detection data of the product obtained in embodiment 1-embodiment 6, and table 4 is comparative example 1-performance detection data of the product obtained in comparative example 6.

[0044] Among them, in Table 1 and Table 2, the TPO skin regenerated materials involved are all made from foamed TPO skin materials for automotive interiors through sorting, crushing, separation, cleaning, defoaming reaction, extrusion and granulation;

[0045] The molecular weight regulators involved are all 2,5-dimethyl-2,5-di-tert-butylperoxyhexane;

[0046] The involved copolymerized PP has a melt index ranging from 30g / 10min to 100g / 10min (230°C, 2.16kg), and notched Izod impact ≥ 6KJ / m 2 High crystalliz...

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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, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/02C08L23/14C08L23/08C08L51/06C08K13/06C08K9/04C08K3/26C08K3/34C08K5/14C08L23/16B62D25/16
CPCC08L23/02B62D25/161C08K2003/265C08L2207/04C08L2207/20C08L2201/08C08L2205/08C08L23/14C08L23/0815C08L51/06C08K13/06C08K9/04C08K3/26C08K3/34C08K5/14
Inventor 刘双仕李志海韦绍珍刘鑫陈龙莫兰武海刚黄国华
Owner 广西鑫深科技有限公司
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