A weather-resistant one-coat paint and a method for preparing the same

By combining modified graphene and flame retardants, the problems of insufficient weather resistance and flame retardancy in topcoat coatings were solved, achieving long-term stability and improved safety in outdoor environments.

CN121537838BActive Publication Date: 2026-05-29HUNAN ZIXIAN NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202511950992.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-05-29
Estimated Expiration
2045-12-23

AI Technical Summary

Technical Problem

Existing topcoat coatings are prone to fading, chalking, and other aging phenomena under long-term outdoor ultraviolet radiation, and they cannot meet the flame retardant requirements of special operation scenarios such as mines and tunnels, thus limiting their promotion and application.

Method used

By combining modified graphene with specific flame retardants, the modified graphene enhances its UV absorption capacity through carboxylation and quaternization reactions, while the flame retardant forms a stable carbon layer and coordination bonds through a polybenzene ring structure and triazole rings, thereby improving the coating's weather resistance and flame retardancy.

Benefits of technology

It significantly improves the weather resistance, flame retardancy and corrosion resistance of coatings. Modified graphene enhances the ability to block ultraviolet light, and flame retardants form a dense protective film to block corrosive media, thus synergistically improving coating performance.

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Abstract

The present application relates to the technical field of paint, and especially relates to a weather-resistant one-coat paint and a preparation method thereof. The paint comprises component A and component B; the mass ratio of the component A to the component B is (25-30):3; according to weight parts, the component A comprises the following raw materials: 20-30 parts of hydroxyl acrylic acid resin, 10-20 parts of organic solvent, 25-35 parts of pigment, 5-15 parts of flame retardant, 1-5 parts of modified graphene and 1-4 parts of additive; and the component B is a solution of aliphatic polyisocyanate. The paint has excellent bacteriostasis, flame retardation, weather resistance and corrosion resistance.
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