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Preparation method of scratch-resistant wear-resistant carbon fiber

A carbon fiber, wear-resistant technology, applied in the direction of carbon fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of weakened interfacial properties, poor oxidation resistance, high orientation degree of composite materials, etc., to achieve increased damage tolerance and high adhesion The effect of strength and enhanced interface performance

Pending Publication Date: 2022-07-22
荆门劲驰汽车配件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the preparation process, CF presents a typical "skin-core" structural feature, with disordered interior and low degree of orientation; orderly surface layer with high degree of orientation, which will lead to further weakening of the interfacial properties of composite materials.
The main disadvantage of carbon fiber is poor oxidation resistance. In the air atmosphere, there will be obvious oxidation weight loss at about 400°C. At the same time, the oxidation rate will increase as the temperature increases. When the fiber is oxidized by 2 to 5%, will result in a serious drop in intensity, which is about half of the

Method used

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  • Preparation method of scratch-resistant wear-resistant carbon fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: a kind of preparation method of scratch-resistant and wear-resistant carbon fiber,

[0033] S1. Prepare raw materials: composite carbon fiber cloth, glass fiber cloth, carbon fiber filament, and then cut into the desired shape, and then pre-impregnate the carbon fiber cloth in the slurry;

[0034] S2, coating the mold with release agent, and then laying the carbon fiber cloth prepared in step S1 in the mold;

[0035] S3. Coat epoxy resin on the mold with carbon fiber cloth;

[0036] S4, then put the mold into a vacuum bag for vacuuming; then heat and solidify in a vacuum heating tank;

[0037] S5. Surface grinding and painting art to make the surface smooth.

Embodiment 2

[0038] Embodiment 2: a kind of preparation method of scratch-resistant and wear-resistant carbon fiber,

[0039] S1. Prepare raw materials: carbon fiber cloth, glass fiber cloth, carbon fiber filament, then cut into the desired shape, and then put the carbon fiber cloth on the Ti 3 C 2 F 2 Pre-soak in slurry;

[0040] S2, coating the mold with release agent, and then laying the carbon fiber cloth prepared in step S1 in the mold;

[0041] S3. Coat epoxy resin on the mold with carbon fiber cloth;

[0042] S4, then put the mold into a vacuum bag for vacuuming; then heat and solidify in a vacuum heating tank;

[0043] S5. Surface grinding and painting art to make the surface smooth.

Embodiment 3

[0044] Embodiment 3: a kind of preparation method of scratch-resistant and wear-resistant carbon fiber,

[0045] S1. Prepare raw materials: carbon fiber cloth, glass fiber cloth, carbon fiber filament, and then cut into the desired shape, and then pre-impregnate the carbon fiber cloth in the slurry;

[0046] S2, coating the mold with release agent, and then laying the carbon fiber cloth prepared in step S1 in the mold;

[0047] S3. Coat flexible resin on the mold with carbon fiber cloth;

[0048] S4, then put the mold into a vacuum bag for vacuuming; then heat and solidify in a vacuum heating tank;

[0049] S5. Surface grinding and painting art to make the surface smooth.

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Abstract

The invention belongs to the technical field of carbon fibers, and discloses a preparation method of scratch-resistant wear-resistant carbon fibers, which comprises the following steps: S1, preparing raw materials: compounding carbon fiber cloth, glass fiber cloth and carbon fibers, then cutting into a required shape, and then presoaking the carbon fiber cloth in slurry; s2, a mold is coated with a mold release agent, and then the carbon fiber cloth prepared in the step S1 is laid in the mold; s3, the mold laid with the carbon fiber cloth is coated with flexible resin; s4, then the mold is put into a vacuum bag to be vacuumized; heating and curing in a vacuum heating tank; and S5, surface grinding and painting art designing are carried out, so that the surface is smooth. The carbon fiber composite material is a mixed structure material which combines rigid and brittle materials into a whole, the rigidity and brittleness of a single material are coordinated, meanwhile, the prepared flexible resin can enter a network of matrix resin under the introduction of slurry, and the binding force of fibers and a matrix interface can be improved.

Description

technical field [0001] The invention belongs to the technical field of carbon fibers, and particularly relates to a preparation method of scratch-resistant and wear-resistant carbon fibers. Background technique [0002] In carbon fiber reinforced resin matrix composites (CFRP), the surface properties of carbon fibers directly affect the interface properties of the composites. Due to the limitations of the preparation process, CF exhibits a typical "skin-core" structure, with internal disorder and low orientation; the surface layer is ordered and high in orientation, which will further weaken the interface properties of the composite. The main disadvantage of carbon fiber is its poor oxidation resistance. Obvious oxidation weight loss will occur at about 400 °C in an air atmosphere. At the same time, the oxidation speed will increase with the increase of temperature. When the fiber is oxidized by 2 to 5% This will cause a severe drop in strength, about half the degree of dec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/54B29C70/34B29C70/10D06M11/74D06N3/00D06N3/12D06M101/40
CPCB29C70/546B29C70/342B29C70/10D06M11/74D06N3/0015D06N3/12D06N3/007D06M2101/40D06N2209/16D06N2211/263
Inventor 于春光杨华强李琳琳
Owner 荆门劲驰汽车配件股份有限公司
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