Special-purpose weather-resisting anti-shock polypropylene material for automobile bumper and preparation method
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A technology of automobile bumper and polypropylene, applied in the field of materials, can solve the problems of stability of material processing, odor and other comprehensive properties, and achieve the effect of improving weather resistance and prolonging service life.
Inactive Publication Date: 2013-08-21
QINGDAO GON TECHNOLOGY CO LTD
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Problems solved by technology
Although this technical solution solves the weather resistance problem of impact-resistant PP, it does not explain the processing stability, odor and other comprehensive properties of the material, and whether it can be applied to bumpers
Method used
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Embodiment 1
[0020] Example 1 Unit: kg
[0021] 70 parts of polypropylene, 10 parts of ethylene-octene copolymer, 22 parts of talcum powder, 0.5 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester as antioxidant , The light stabilizer is 0.5 parts of bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 1 part of EBS dispersant, and the nucleating agent is 2,4-bis(3, 0.1 parts of 4-dimethylbenzylidene)-D-sorbitol.
Embodiment 2
[0022] Example 2 Unit: kg
[0023] 71 parts of polypropylene, 9 parts of ethylene-octene copolymer, 22 parts of talcum powder, 0.5 n-octadecyl alcohol ester of β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate as antioxidant 1 part, 1 part of bis(2,2,6,6-tetramethylpiperidinyl) sebacate as light stabilizer, 1 part of EBS dispersant, 1,3-bis(3,4- Dimethylbenzylidene)-D-sorbitol 0.1 part.
Embodiment 3
[0024] Example 3 Unit: kg
[0025] 72 parts of polypropylene, 8 parts of ethylene-octene copolymer, 22 parts of talcum powder, 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane 1 0.5 parts of the polymer of succinic acid and 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinol as light stabilizer, 1 part of EBS dispersant, and 2,4- 0.1 part of bis(3,4-dimethylbenzylidene)-D-sorbitol.
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Abstract
The invention provides a special-purpose weather-resisting anti-shock polypropylene material for automobile bumpers and a preparation method of the material, for solving the problems of poor anti-shock and weather resistance in the prior art. According to the technical scheme, the special-purpose material comprises the following components in part by mass: 70-80 parts of polypropylene, 2-15 parts of ethylene-octylene copolymer, 0.1-1 part of antioxidant, 0.1-1 part of light stabilizer, 10-30 parts of talcum powder, 0.1-1 part of dispersing agent and 0.08-0.12 part of nucleating agent. By improving the formula of the material, the weather-resistance of the material is improved on the premise that the influence to impact performance is reduced as much as possible, and the service life of an automobile bumper is greatly prolonged.
Description
technical field [0001] The invention relates to materials, in particular to a weather-resistant and impact-resistant polypropylene special material for automobile bumpers and a preparation method thereof. Background technique [0002] After the 1970s, polypropylene (PP) has developed rapidly in the automotive field due to its advantages of low price, abundant sources, simple processing, easy recycling and good cost performance, especially the proportion of PP used to make bumpers is also increasing. bigger and bigger. However, pure PP materials mainly have disadvantages such as poor impact resistance, large molding shrinkage, poor applicability and weather resistance, and must be modified when used as a bumper material. After many years of research at home and abroad, the problems of impact resistance and molding shrinkage have been solved satisfactorily, but the problem of weather resistance has not been solved well so far. [0003] The car bumper is one of the important ...
Claims
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