Preparation method of hydrotalcite modified fluorinated graphene corrosion-resistant self-repairing coating
By introducing hydrotalcite and corrosion inhibitor into the fluorinated graphene coating, the problems of high cost of fluorinated graphene and easy coating damage are solved, and efficient and lasting corrosion resistance and self-repair effects are achieved.
CN119775860AActive Publication Date: 2025-04-08SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Patent Information
- Application Number
- CN202411984091.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2044-12-31
AI Technical Summary
Technical Problem
The existing fluorinated graphene coating is costly and can easily lead to local corrosion acceleration after damage, affecting corrosion resistance and service life.
Method used
Hydral talc is introduced into the surface of fluorinated graphene by co-precipitation method, reducing the amount of fluorinated graphene, and introducing corrosion inhibitors into the coating to improve the anion exchange capacity between layers and form a self-healing coating.
Benefits of technology
It significantly reduces the cost of the coating, while improving long-term corrosion resistance and self-repair performance, and extends the service life of the coating.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a preparation method of a hydrotalcite modified fluorinated graphene corrosion-resistant self-repairing coating. The preparation method comprises the following specific steps: step 1, carrying out cleaning treatment on the surface of a to-be-treated matrix; step 2, adding fluorinated graphene into an ethylene glycol aqueous solution, and ultrasonically stirring and dispersing to obtain a solution A; the preparation method comprises the following steps: dissolving Zn (NO3) 2.6 H2O and Al (NO3) 3.9 H2O in water to prepare a solution B; dissolving a corrosion inhibitor in water to obtain a solution C; then, mixing the solution A, the solution B and the solution C, and reacting to obtain FG coated LDH powder; and step 3, mixing the FG coated LDH powder prepared in the step 2 with n-butyl alcohol and xylene, then adding epoxy resin, mixing, then carrying out ball milling, uniformly mixing a ball milling product with a polyamide curing agent, coating the surface of a to-be-treated matrix with the mixture, and curing to obtain the coating.
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