Wear-resistant and anti-corrosion material, wear-resistant and anti-corrosion coating and application thereof, wear-resistant and anti-corrosion paint and preparation method and application thereof

The wear-resistant and anti-corrosion coating composed of phenol-modified graphene and epoxy resin solves the problems of wear resistance and chemical corrosion of liquid coatings, and improves the wear resistance, adhesion and toughness of the coating, making it suitable for the downhole environment of oil and gas extraction.

CN122302689APending Publication Date: 2026-06-30CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202411995361.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing liquid anti-corrosion coatings have poor wear resistance and insufficient chemical corrosion resistance, while solid powder coatings have poor adhesion and toughness, making it difficult to provide long-term effective corrosion protection in the downhole environment of oil and gas extraction.

Method used

A wear-resistant and corrosion-resistant coating composed of phenol-modified graphene and epoxy resin, including component A and component B, is prepared by shear mixing to form a wear-resistant and corrosion-resistant coating, which is then applied to downhole metal equipment.

Benefits of technology

It improves the coating's wear resistance, hydrogen sulfide resistance, and salt spray resistance, enhances adhesion and toughness, ensures the coating's integrity under high pressure and high deformation conditions, and solves the corrosion problem of traditional coatings under high solids sand and gravel slurry conditions.

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Abstract

The invention relates to the field of corrosion prevention, in particular to a wear-resistant and corrosion-resistant material, a wear-resistant and corrosion-resistant coating and application thereof, wear-resistant and corrosion-resistant paint and a preparation method and application thereof. The wear-resistant and corrosion-resistant material comprises a wear-resistant and corrosion-resistant coating, wherein the wear-resistant and corrosion-resistant coating is prepared from epoxy resin, phenol modified graphene, filler, a nonionic dispersing aid and a curing agent; the epoxy resin comprises phenolic epoxy resin and bisphenol A epoxy resin; the phenol modified graphene comprises graphene oxide and a phenolic substance formed on the graphene oxide. The wear-resistant anticorrosive paint has the advantages of good stability, good brushing performance, simple construction process and the like, and the prepared coating is excellent in wear resistance, good in acid / alkali resistance, strong in adhesive force and good in toughness.
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