Wear-resistant carbon fiber coating and coating method thereof

A carbon fiber, anti-wear technology, applied in coatings, anti-corrosion coatings, polyamide coatings, etc., can solve the problems of large particles of coating materials, poor wear resistance, poor chemical corrosion resistance, etc., to delay the entry into the coating Excellent speed, good chemical corrosion resistance, and remarkable anti-wear effect

Inactive Publication Date: 2019-07-02
佛山市石金科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The coating is a protective layer attached to the surface of the material, which is used to block external corrosion particles from contacting the surface of the material, prevent material corrosion caused by redox reactions, and reduce the performance of the material. However, in the process of film formation, the coating Due to the volatilization of the solvent, micropores will be left inside the coating. During the long-term use of the coating, the corrosion particles accumulated on the surface of the coating will pass through the coating through the micropores inside the coating to reach the protective substrate. Corrosion occurs on the surface of the material. At present, some carbon fiber products need to be coated on the surface. Generally, the coating material is directly stirred and mixed, and the conventional heat treatment is used to cure the coating, so that the surface of the material Coating a layer of dense film, this kind of film has a certain anti-corrosion and wear-resistant effect, but the coating material has large particles, which will lead to uneven coating, poor adhesion, and poor wear-resistant effect. It can't meet the needs of people's life and work. It is characterized by poor chemical corrosion resistance and unsatisfactory wear protection for basic materials.

Method used

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  • Wear-resistant carbon fiber coating and coating method thereof

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preparation example Construction

[0026] (3) preparation of coating material,

[0027] Specifically: choose and weigh raw materials, mix and melt epoxy resin, solvent, adhesive, clay, and anti-corrosion fillers, control the temperature at 100-120°C, evenly put silicon dioxide into the raw materials in a mixed and molten state, and grind them in a ball mill Grind for 2-3 hours, set the speed of the ball mill at 2000-3000r / min, add curing agent, transfer to a high-speed disperser, set the speed at 3500-5000r / min, and disperse for 25-40min, so that the coating material Fully form a homogenate, and keep the obtained coating material at 75-90°C for standby;

[0028] (4) Coating and curing methods of the coating;

[0029] Specifically: use a spray gun to spray the prepared coating material on the dry carbon fiber, control the thickness of the first layer of coating at 15-30 μm, irradiate for 20-30 minutes under the action of ultraviolet rays after coating, and carry out the second coating. Spraying of the second-l...

Embodiment 1

[0034] An anti-wear carbon fiber coating comprises the following components by weight: 35 parts of resin, 15 parts of solvent, 10 parts of binder, 4 parts of clay, 18 parts of silicon dioxide, 10 parts of filler, and 8 parts of curing agent.

[0035] The resin is epoxy resin; the solvent is composed of acetone and water in a ratio of 8:1; the adhesive is polyethersulfone; the clay is bentonite; The layer structure material is a nano-graphene material; the curing agent is composed of polyamide and methyl hexahydrophthalic anhydride in a ratio of 1:1.

[0036] In addition, a coating method of an anti-wear carbon fiber coating is provided, comprising the steps of:

[0037] (1) Add absolute ethanol to the carbon fiber, wash it once under ultrasonic conditions for 20 minutes, filter, add acetone again to continue washing for 1 hour, filter, add distilled water and continue washing for 20 minutes;

[0038] (2) Place the cleaned carbon fiber under a vacuum condition of 75° C., and d...

Embodiment 2

[0044] An anti-wear carbon fiber coating comprises the following components by weight: 45 parts of resin, 10 parts of solvent, 10 parts of binder, 4 parts of clay, 10 parts of silicon dioxide, 10 parts of filler and 11 parts of curing agent.

[0045] The resin is phenolic resin; the solvent is composed of acetone and water in a ratio of 12:5; the binder is polyethersulfone; the clay is montmorillonite; the filler is spherical The structural material is porous powdered quartz; the curing agent is composed of polyamide and methyl hexahydrophthalic anhydride in a ratio of 5:2.

[0046] In addition, a coating method of an anti-wear carbon fiber coating is provided, comprising the steps of:

[0047] (1) Add absolute ethanol to the carbon fiber, wash it once under ultrasonic conditions for 30 minutes, filter, add acetone again to continue washing for 2 hours, filter, add distilled water and continue washing for 30 minutes;

[0048] (2) Place the cleaned carbon fiber under a vacuum ...

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Abstract

The invention provides a wear-resistant carbon fiber coating and a coating method thereof. Resin in a carbon fiber coating material is mixed and melted with a solvent, clay, a binder and a filler; under the action of a ball mill, a coating material which has uniform particle size and is less than 1000 meshes is obtained; with the combination of dispersion effect of a dispersion machine, the coating material can be better combined with the surface of carbon fiber. The coating material is coated in three layers during coating: the first layer and the second layer are coated under the ultravioletirradiation such that silicon dioxide ultrafine particles of the polymerization reactive functional group are dispersed therein to form a more stable coating; and the third layer of the coating material is uniformly scraped and synchronously solidified on a frame-type film applicator to strengthen the adhesion between the coating materials, and then the coating is less prone to delamination and the speed of corrosive particles entering the coating is effectively delayed. Thereby, the coating shows good chemical corrosion resistance and remarkable wear resistance.

Description

technical field [0001] The invention relates to the field of carbon fiber preparation, in particular to an anti-wear carbon fiber coating and a coating method thereof. Background technique [0002] The coating is a protective layer attached to the surface of the material, which is used to block external corrosion particles from contacting the surface of the material, prevent material corrosion caused by redox reactions, and reduce the performance of the material. However, in the process of film formation, the coating Due to the volatilization of the solvent, micropores will be left inside the coating. During the long-term use of the coating, the corrosion particles accumulated on the surface of the coating will pass through the coating through the micropores inside the coating to reach the protective substrate. Corrosion occurs on the surface of the material. At present, some carbon fiber products need to be coated on the surface. Generally, the coating material is directly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D161/06C09D177/00C09D181/06C09D5/08C09D7/61B05D3/02B05D3/06B05D5/08B05D7/00
CPCB05D3/0209B05D3/0254B05D3/067B05D5/08B05D7/576C08K2201/014C09D5/08C09D161/06C09D163/00C09D177/00C09D7/61C09D7/70C08L81/06C08K3/346C08K3/36C08K3/042C08K7/26
Inventor 候振华龙晟李恒文
Owner 佛山市石金科技有限公司
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