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Waste recycling conductive carbon fiber thermoplastic composite and preparation method thereof

A technology of conductive carbon fiber and composite material, which is applied in the field of waste recycling conductive carbon fiber thermoplastic composite material and its preparation, can solve problems such as low electrical conductivity and difference in electrical conductivity, and achieve the effects of increasing electrical conductivity, uniform distribution, and meeting environmental protection requirements.

Inactive Publication Date: 2018-09-28
ANHUI XUSHENG NEW CONCEPT MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are differences in the electrical conductivity of carbon fiber composite materials based on PA, and the electrical conductivity is not high. Therefore, the present invention makes improvements to this situation.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0044] A preparation method for recycling conductive carbon fiber thermoplastic composite materials from waste materials, comprising the following steps:

[0045] 1) Fully dry the carbon fiber and PA6 through a dryer for 4-5 hours, so that the moisture content of the dried material is less than 0.02wt%;

[0046] 2) Recycle the scrapped PA6 thermoplastic composite material and clean it through a washing machine, dry the cleaned waste through a dryer, sort the dried waste through a sorting machine, and pass the sorted waste through granulation Machine granulation spare;

[0047] 3) Stir the nano-aluminum particles in the range of 70-100 degrees Celsius under vacuum conditions, pass in hydrogen gas at a pressure of 30-50 Pa, and at the same time pass in graphite gas at a pressure of 50-100 Pa, after 24-48 hours, then cool down to obtain an oxide Graphene-coated nano-aluminum particles are ready for use.

[0048] 4) Mixing the mixed PA6 in step 1, the waste composite material in...

Embodiment 1

[0053] 1) Fully dry 30% of carbon fiber and 30% of PA6 through a dryer for standby, the drying time is 4 hours, so that the moisture content of the dried material is less than 0.02wt%;

[0054] 2) Recycle 30% of the scrapped PA6 thermoplastic composite materials and clean them through a washing machine, dry the cleaned waste through a dryer, sort the dried waste through a sorting machine, and sort the sorted waste Granulating through a granulator for subsequent use;

[0055] 3) Stir the nano-aluminum particles in the range of 70 degrees Celsius under vacuum conditions, pass in hydrogen gas with a pressure of 30 Pa, and at the same time pass in graphite gas with a pressure of 50 Pa. After 24 hours, then cool down to prepare graphene oxide-coated nano-aluminum particles. spare.

[0056] 4) Mixing the mixed PA6 in step 1, the waste composite material in step 2, 6% nano-aluminum particles and carbon nanotubes in step 3, 2% reinforcing agent and 1% thermal stabilizer;

[0057] 5) A...

Embodiment 2

[0059] 1) Fully dry 30% of carbon fiber and 40% of PA6 through a dryer for standby, the drying time is 4 hours, so that the moisture content of the dried material is less than 0.02wt%;

[0060] 2) Recycle 20% of the scrapped PA6 thermoplastic composite materials and clean them through a washing machine, dry the cleaned waste through a dryer, sort the dried waste through a sorting machine, and sort the sorted waste Granulating through a granulator for subsequent use;

[0061] 3) Stir the nano-aluminum particles in the range of 80 degrees Celsius under vacuum conditions, pass in hydrogen gas at a pressure of 30 Pa, and at the same time pass in graphite gas at a pressure of 70 Pa, after 30 hours, and then cool down to prepare graphene oxide-coated nano-aluminum particles spare.

[0062] 4) Mixing PA6 in step 1, waste composite material in step 2, 8% nano-aluminum particles and carbon nanotubes in step 3, and 1% reinforcing agent;

[0063] 5) Add the mixture after the mixing rea...

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Abstract

The invention relates to the technical field of new energy automobile materials, in particular to a waste recycling conductive carbon fiber thermoplastic composite and a preparation method of the composite. The composite comprises the following ingredients by weight percentage: 30-50% of PA6, 20-30% of carbon fiber, 20-30% of waste composite, 4-15% of conductive particle, 1-10% of a reinforcer, 0.1-1% of a heat stabilizer and 1-3% of a dispersing agent, wherein the conductive particle comprises a carbon nano tube and a graphene oxide coated nano aluminum particle at a weight ratio of 1:1; anda particle size of PA6 does not exceed 25 micrometers. The invention aims at providing the waste recycling conductive carbon fiber thermoplastic composite with better conductivity and the preparationmethod of the composite.

Description

technical field [0001] The invention relates to the technical field of new energy automobile materials, in particular to a waste recycling conductive carbon fiber thermoplastic composite material and a preparation method thereof. Background technique [0002] Carbon fiber composite material is an important branch of composite materials. Due to its excellent performance, the use and output of this material have gradually expanded in recent years. For a long time, carbon fiber reinforced composite material has been regarded as an expensive material, the price is about ten times that of glass fiber reinforced composite material, and it is only used in cutting-edge technology industries such as military industry and aerospace. In recent years, carbon fiber has been growing at a rate of more than 50% every year. There are two important factors that promote the development of carbon fiber composite materials. performance, prompting its usage to rise continuously. The second is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/06C08K13/06C08K9/10C08K3/08C08K7/06C08K3/04
CPCC08K2003/0812C08K2201/001C08K2201/003C08K2201/004C08K2201/011C08L77/02C08L2205/025C08L2205/03C08L2207/20C08L51/06C08K13/06C08K9/10C08K3/08C08K7/06C08K3/041
Inventor 蔡福泉
Owner ANHUI XUSHENG NEW CONCEPT MATERIAL CO LTD
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