Carbon coating slurry, carbon coating, carbon fiber hard felt, preparation method and application

By mixing carbon coating slurry with aqueous resin film forming agent, graphite powder, surface additives, thickeners, defoamers and other components, the problem of existing carbon coating slurry prone to cracking and powder loss under high temperature conditions is solved, and the uniformity and high temperature stability of the carbon coating are achieved, extending the service life of the product and reducing costs.

CN119754019APending Publication Date: 2025-04-04BYD CO LTD
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Patent Information

Application Number
CN202410877163.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-01
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The existing carbon coating slurry is prone to cracking and powder loss under high temperature conditions, and the aqueous slurry has the problem that carbon source particles are difficult to disperse, quickly settle, and difficult to brush, which affects the service life and cost of the product.

Method used

The carbon coating slurry using an aqueous system, including aqueous resin film-forming agent, graphite powder, surface additives, thickeners, defoamers and other components. By mixing the content of these components, the graphite powder particles are evenly dispersed, the anti-sag and leveling characteristics of the coating are improved, and the stability is maintained under high temperature conditions.

Benefits of technology

It achieves uniformity and high temperature stability of carbon coating, extends the service life of the product, reduces production costs, and meets the market's demand for green and environmental protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses carbon coating slurry, a carbon coating, a carbon fiber hard felt, a preparation method and application. The carbon coating slurry comprises the following components in percentage by mass: 30%-80% of a water-based resin film-forming agent, 5%-20% of graphite powder, 0.5%-2% of a surface additive, 0.5%-3% of a thickening agent, 0.05%-1% of a defoaming agent and deionized water. According to the carbon coating slurry, by controlling the proportion of the film-forming agent, the surface additive, the thickening agent, the defoaming agent and the graphite powder particles, a carbon coating slurry system has good anti-sagging and leveling characteristics and is uniform in dispersion and not prone to sedimentation, and a prepared carbon coating is uniform in surface, free of cracking and powder falling under the high-temperature condition and good in anti-sagging performance. And the service life of the product is reliably prolonged, so that the cost is reduced.
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