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Modified polypropylene material for electric vehicle

A polypropylene material and technology for electric vehicles, applied in the field of modified polypropylene materials for electric vehicles and their preparation, can solve the problems of poor aging resistance and degradation performance, reduce flexibility, affect performance, etc., and achieve excellent resistance to flying stone impact, The effect of improving surface tension and improving paint adhesion

Inactive Publication Date: 2016-06-01
ZHEJIANG YULONG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polypropylene has the following disadvantages: 1) The side methyl group on the molecular chain reduces the flexibility of the chain, and the spherulite particles are large, making it brittle, poor in impact resistance, and insufficient in high temperature rigidity
2) It is a non-polar polymer with poor dyeability, adhesion, antistatic properties and inorganic compatibility
3) The processing and molding shrinkage rate is large, and the dimensional stability of the product is low
4) Poor resistance to aging and degradation
The difficulty of this type of technology is to form a uniform surface without excessive treatment, otherwise the polymer chains on the surface will be broken, which will affect the performance of the polymer. Therefore, improving the polarity of polypropylene materials has become an extremely attractive topic

Method used

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  • Modified polypropylene material for electric vehicle
  • Modified polypropylene material for electric vehicle
  • Modified polypropylene material for electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 100 parts of polypropylene, 15 parts of metallocene polyolefin elastomer, 3 parts of glass fiber, 5 parts of modified nano filler material, 9 parts of ethylene bis stearamide, 0.5 part of chlorinated polyethylene, and 0.2 part of antioxidant.

[0026] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester.

[0027] The modified nano-filling material is obtained by modifying the nano-filling material through alkyl alkoxysiloxane, wherein the nano-filling material is mixed with mica, silicon carbide, and boron nitride in a weight ratio of 5:1:1; The weight ratio of the nanofill material to the alkylalkoxysiloxane is 89:1.

[0028] Prepare the modified polypropylene material for electric vehicles according to the following steps:

[0029] ① Weigh polypropylene, metallocene polyolefin elastomer, glass fiber, modified nanofiller, ethylene bisstearamide, chlorinated polyethylene, antioxidant in proportion, and then mix in a high-spe...

Embodiment 2

[0033] 115 parts of polypropylene, 25 parts of metallocene polyolefin elastomer, 5 parts of glass fiber, 10 parts of modified nano-filler, 11 parts of ethylene bis-stearamide, 0.8 part of chlorinated polyethylene, and 0.4 part of antioxidant.

[0034] The antioxidant is β-(4-hydroxyphenyl-3,5-di-tert-butyl) n-octadecyl propionate.

[0035] The modified nano-filling material is obtained by modifying the nano-filling material through alkyl alkoxysiloxane, wherein the nano-filling material is mixed with mica, silicon carbide, and boron nitride in a weight ratio of 5:1:1; The weight ratio of the nanofill material to the alkylalkoxysiloxane is 89:1.

[0036] Process step is with embodiment 1.

Embodiment 3

[0038] 120 parts of polypropylene, 25 parts of metallocene polyolefin elastomer, 6 parts of glass fiber, 15 parts of modified nano filler material, 12 parts of ethylene bis stearamide, 0.9 part of chlorinated polyethylene, 0.6 part of antioxidant.

[0039] The antioxidant is selected from tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol esters.

[0040] The modified nano-filling material is obtained by modifying the nano-filling material through alkyl alkoxysiloxane, wherein the nano-filling material is mixed with mica, silicon carbide, and boron nitride in a weight ratio of 5:1:1; The weight ratio of the nanofill material to the alkylalkoxysiloxane is 89:1.

[0041] Process step is with embodiment 1.

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Abstract

The invention provides a modified polypropylene material for an electric vehicle and a preparing method of the modified polypropylene material.Raw materials including, by weight, 100-120 parts of polypropylene, 15-30 parts of metallocene polyolefin elastomer, 3-6 parts of glass fibers, 5-15 parts of a modified nanometer filling material, 8-14 parts of ethylene bis stearamide, 0.5-0.9 part of chlorinated polyethylene and 0.2-0.6 part of an antioxidant are weighed, wherein the modified nanometer filling material is obtained by modifying a nanometer filling material with alkyl alkoxyl siloxane, the nanometer filling material is prepared by mixing mica, silicon carbide and boron nitride at 5:1:1 by weight, and the weight ratio of the nanometer filling material to alkyl alkoxyl siloxane is 89:1.According to the modified polypropylene material for the electric vehicle and the preparing method of the modified polypropylene material, on the basis that the original performance of a polypropylene material is ensured, the flying stone impact resistance and scratch resistance of the modified polypropylene material are improved the surface tension and the paint adhesive force of the modified polypropylene material are improved, and the modified polypropylene material is especially suitable for serving as materials for accessories of the electric vehicle.

Description

technical field [0001] The invention relates to a modified polypropylene material, in particular to a modified polypropylene material for an electric vehicle and a preparation method thereof. Background technique [0002] In 1873, the British Robert Davidson invented the electric car with a primary battery as power, but it was not included in the scope of international confirmation. It is internationally recognized that the first electric car was born in 1881. The inventor was the French engineer Gustave Truff. This is a tricycle powered by lead-acid batteries. Later, nickel-cadmium, nickel-hydrogen batteries, Lithium-ion batteries, fuel cells as electric power for electric vehicles. [0003] Electric vehicles currently on the market refer to pure electric vehicles with a maximum speed of less than 50 km / h, including electric sightseeing vehicles, electric golf carts, electric patrol vehicles, electric sanitation vehicles, electric transport vehicles, electric tractors, ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/00C08L23/28C08K13/06C08K9/06C08K3/34C08K3/38C08K7/14
CPCC08L23/12C08K2201/005C08K2201/011C08K2201/014C08L2205/02C08L2205/035
Inventor 周正富
Owner ZHEJIANG YULONG TECH DEV
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