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Anti-impact oil-resistant composite plastic used for automobile parts

A technology of auto parts and composite plastics, which is applied in the field of auto parts materials, can solve the problems of composite plastics corrosion, affecting the impact resistance of base materials, and the impact resistance cannot meet the requirements of use, so as to improve the bending strength and modulus, improve Effects of impact resistance and oil resistance

Inactive Publication Date: 2018-12-04
界首市鑫一龙机械设备购销有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards, the automobile industry has also developed rapidly, so the requirements for auto parts are getting higher and higher. Among them, on the basis of maintaining the safety of automobiles, realizing the lightweight of automobiles is one of the key points of production. Important direction, therefore, in auto parts, many are replaced by metal materials with plastic materials, but compared with metal materials, although the weight is light, its impact strength cannot meet the requirements for use. At the same time, in actual use , lubricating oil is usually used to lubricate auto parts, and composite plastics will be corroded by oil under high temperature conditions. There is little research on this in the prior art. Eggshells contain 95% calcium carbonate, which can be used as fillers Preparation of composite materials, but the amount of eggshell powder added will affect the impact resistance of the substrate, therefore, further research and improvement are needed

Method used

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  • Anti-impact oil-resistant composite plastic used for automobile parts
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Examples

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Embodiment 1

[0017] An impact-resistant and oil-resistant composite plastic for auto parts, comprising the following raw materials in parts by weight: 70 parts of nylon resin, 25 parts of high-density polyethylene, 14 parts of modified eggshell powder, bis-hydroxyethylaminoethyl stearate 4 parts, 8 parts of organometallic carboxylic acid compound, 3 parts of β-C-6-sulfate-chitosan compound, 2 parts of plasticizer;

[0018] The preparation method of described modified eggshell powder is:

[0019] (1) Wash the eggshells and dry them until the water content is less than 5%, grind them into powder and pass through a 40-mesh sieve, then mix the obtained eggshell powder with a copper acetate solution with a mass concentration of 5.5%, at a temperature of 68°C Stir for 30 minutes, filter and dry until the water content is lower than 8%, to obtain intermediate material A;

[0020] (2) Mix intermediate material A with 4-6% hexamethylphosphoric triamide, 1.5% diisocyanate, 0.5% mercapto-containing ...

Embodiment 2

[0028] An impact-resistant and oil-resistant composite plastic for auto parts, comprising the following raw materials in parts by weight: 65 parts of nylon resin, 28 parts of high-density polyethylene, 12 parts of modified eggshell powder, bis-hydroxyethylaminoethyl stearate 5 parts, 6 parts of organometallic carboxylic acid compound, 4 parts of β-C-6-sulfate-chitosan compound, 3 parts of plasticizer;

[0029] The preparation method of described modified eggshell powder is:

[0030] (1) Wash the eggshells and dry until the water content is less than 5%, grind them into powder and pass through a 40-mesh sieve, then mix the obtained eggshell powder with a copper acetate solution with a mass concentration of 5.2%, at a temperature of 70°C Stir for 35 minutes, filter and dry until the water content is lower than 8%, to obtain intermediate material A;

[0031] (2) Mix intermediate material A with 4% hexamethylphosphoric triamide, 1.2% diisocyanate, 0.4% mercapto-containing siloxan...

Embodiment 3

[0039] An impact-resistant and oil-resistant composite plastic for auto parts, comprising the following raw materials in parts by weight: 75 parts of nylon resin, 22 parts of high-density polyethylene, 16 parts of modified eggshell powder, bis-hydroxyethylaminoethyl stearate 3 parts, 10 parts of organometallic carboxylic acid compound, 2 parts of β-C-6-sulfate-chitosan compound, 1 part of plasticizer;

[0040] The preparation method of described modified eggshell powder is:

[0041] (1) Wash the eggshells and dry until the water content is less than 5%, grind them into powder and pass through a 40-mesh sieve, then mix the obtained eggshell powder with a copper acetate solution with a mass concentration of 5.8%, at a temperature of 65°C Stir for 25 minutes, filter and dry until the water content is lower than 8%, to obtain intermediate material A;

[0042] (2) Mix intermediate material A with 6% hexamethylphosphoric triamide, 1.8% diisocyanate, 0.6% mercapto-containing siloxan...

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Abstract

The invention belongs to the technical field of automobile part materials and particularly relates to anti-impact oil-resistant composite plastic used for automobile parts. The plastic comprises, by weight, 65-75 parts of nylon resin, 22-28 parts of high-density polyethylene, 12-16 parts of modified egg shell powder, 3-5 parts of bis(hydroxyethylaminoethyl) stearate, 6-10 parts of an organic metalcarboxylate compound, 2-4 parts of beta-C-6-sulfate-chitosan compound, and 1-3 parts of a plasticizer. Compared with the prior art, the egg shell powder is modified, then nylon resin is added to increase crystallization temperature; under the cooperation effect with other components, the plastic is greatly enhanced in anti-impact and oil-resistant performances and improved in bending strength andmodulus to certain degree, is not obvious in reduction on tensile strength, and can satisfy production demands when being applied to the automobile parts.

Description

technical field [0001] The invention belongs to the technical field of auto parts materials, and in particular relates to an impact-resistant and oil-resistant composite plastic for auto parts. Background technique [0002] With the improvement of people's living standards, the automobile industry has also developed rapidly, so the requirements for auto parts are getting higher and higher. Among them, on the basis of maintaining the safety of automobiles, realizing the lightweight of automobiles is one of the key points of production. Important direction, therefore, in auto parts, many are replaced by metal materials with plastic materials, but compared with metal materials, although the weight is light, its impact strength cannot meet the requirements for use. At the same time, in actual use , lubricating oil is usually used to lubricate auto parts, and composite plastics will be corroded by oil under high temperature conditions. There is little research on this in the prio...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L23/06C08L5/08C08K9/04C08K9/06C08K3/26C08K5/098C08K13/06C08K5/57
CPCC08K2003/265C08L77/00C08L2205/03C08L2207/062C08L23/06C08L5/08C08K9/04C08K9/06C08K3/26C08K5/098C08K13/06C08K5/57
Inventor 申慧君
Owner 界首市鑫一龙机械设备购销有限公司