Whisker-based insulating anticorrosive paint and method for preparing the same

By combining boron nitride whisker-modified organosilicon copolymers with epoxy resin, the problems of insufficient flexibility and weather resistance of epoxy resin coatings are solved, and a uniform thickness and good weather resistance insulating coating is achieved in high-voltage equipment.

CN120041058BActive Publication Date: 2026-05-01INNER MONGOLIA POWER (GROUP) CO LTD
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Patent Information

Application Number
CN202510363838.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-05-01
Estimated Expiration
2045-03-25

AI Technical Summary

Technical Problem

Epoxy resin insulating coatings have poor flexibility and weather resistance, and the drying time and thickness of the coating cannot meet the requirements of high-voltage electrical equipment.

Method used

Boron nitride whisker-modified organosilicon copolymer is combined with bisphenol F epoxy resin to form a coating component with good dispersibility. The polymerization reaction of boron nitride whiskers and epoxy resin improves the flexibility and weather resistance of the coating. Specific additives and curing agents are used to form a coating with a thickness of millimeters.

Benefits of technology

The prepared insulating and anti-corrosion coating dries rapidly at room temperature to form a uniform coating with excellent strength, toughness and weather resistance, making it suitable for high-voltage electrical equipment.

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Abstract

The application provides a whisker-based insulating anticorrosive paint and a preparation method thereof, and belongs to the technical field of insulating materials. The insulating anticorrosive paint comprises component A and component B. According to weight parts, component A comprises 60-80 parts of organic silicon modified copolymer, 0.5-2 parts of dispersing agent, 0.5-5 parts of defoaming agent, 0.1-1.0 parts of adhesion promoter, 0.1-1.0 parts of film forming aid, 1-3 parts of rheological aid and 20-40 parts of filler; component B comprises 95-99 parts of curing agent and 1-5 parts of defoaming agent. The boron nitride whisker is hydroxylated and modified and grafted into the long chain structure of tetramethyl dihydroxy disiloxane, and then polymerized with the epoxy resin to obtain the organic silicon copolymer, so that the dispersibility of the boron nitride in the coating system and the flexibility of the coating system are effectively improved. The insulating anticorrosive paint adopts the brushing or spraying mode, and the film thickness can reach the millimeter level in one time, so that the high voltage resistance requirement of the coating is realized.
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