Water-based high-solid epoxy micaceous iron oxide intermediate paint for heavy-duty anticorrosion, and preparation method and application thereof

By using water-based epoxy amine curing agents and mica iron oxide to reduce viscosity, combined with hyperbranched polyester toughening agents, the problems of high viscosity and uneven mixing during the construction of water-based high-solids epoxy products were solved, achieving easy construction and high-performance coating effects of high-solids coatings under low viscosity conditions.

CN117866503BActive Publication Date: 2026-03-24BEIXIN JIABAOLI COATINGS (GUANGDONG) CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
CN202311637290.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-01
Publication Date
2026-03-24
Estimated Expiration
2043-12-01

AI Technical Summary

Technical Problem

Existing water-based high-solids epoxy products require the addition of a large amount of water for dilution during construction, resulting in reduced solids content, high viscosity, and uneven mixing, which affects construction performance and makes it difficult to meet the construction requirements of heavy-duty anti-corrosion coatings.

Method used

A water-based epoxy amine curing agent and mica iron oxide are used. The viscosity is reduced by a curing agent with an HLB value of 10-18, which enhances the fluidity and application performance of the coating. Hyperbranched polyester toughening agent is added to reduce the viscosity of the system and improve the compatibility and ease of application of the coating.

Benefits of technology

It enables high-solids coatings to be easily applied under low viscosity conditions, achieving a film thickness of over 200 micrometers in a single application, with stable coating performance, meeting the long-term anti-corrosion requirements in C5 corrosive environments.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a water-based high-solid-content epoxy micawHITE intermediate paint for heavy-duty corrosion protection and a preparation method and application thereof, and comprises components A and B; the component A comprises water-based epoxy dispersion, a toughening agent, titanium barium powder, micawHITE and polyamide wax paste; the solid content of the water-based epoxy dispersion is not less than 70%, and the epoxy equivalent of the water-based epoxy dispersion is 270-330; the component B comprises water-based epoxy amine curing agent, micawHITE and polyamide wax paste; the HLB value of the water-based epoxy amine curing agent is 10-18, and the solid content is greater than 50%. When the curing agent is added during construction, only a small amount of water is needed to dilute, so that the construction viscosity and requirements of airless spraying can be achieved. The water-based high-solid-content epoxy micawHITE intermediate paint for heavy-duty corrosion protection prepared by the application has high film thickness for one-time construction, can reach a dry film of more than 180 microns, and can meet the construction requirements of heavy-duty corrosion protection paint, and the paint film is not cracked, has no thick edges, and does not sag.
Need to check novelty before this filing date? Find Prior Art