Solvent-free epoxy self-repairing anticorrosive coating as well as preparation method and application thereof

An anti-corrosion coating and self-repairing technology, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, fire-proof coatings, etc., can solve the extremely high requirements for coating resistance to cathodic disbondment, poor cathodic disbondment resistance of coatings, and shorten the service life of coatings and other problems, to achieve the effect of improving cathodic disbonding resistance, improving anti-corrosion ability, and improving wear resistance
CN112646456AInactive Publication Date: 2021-04-13BC P INC CHINA NAT PETROLEUM CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2021-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention discloses a solvent-free epoxy self-repairing anticorrosive paint as well as a preparation method and application thereof. The paint comprises a component A and a component B. The component A is prepared from the following raw materials in parts by weight: 100 parts of novolac epoxy resin, 5-10 parts of graphene dispersion slurry, 10-15 parts of 128 epoxy resin capsules, 10-15 parts of T31 novolac amine curing agent capsules, 0.5-1 part of corrosion inhibitor or corrosion inhibitor capsules, 150-200 parts of a pigment and filler, 1-3 parts of a defoamer, 1-3 parts of a dispersant and 1-3 parts of a leveling agent; and the component B is a polyamide curing agent. According to the embodiment of the invention, all the components cooperate with one another, and a coating formed by the finally obtained solvent-free epoxy self-repairing anticorrosive paint has excellent temperature resistance, pressure resistance, medium corrosion resistance and self-repairing function performance, and can be used for corrosion prevention in a petroleum casing pipe.
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Description

technical field

[0001] The embodiments of the present invention relate to the technical field of anti-corrosion coatings, in particular to a solvent-free epoxy self-repairing anti-corrosion coating and its preparation method and application. Background technique

[0002] Anti-corrosion coating refers to a type of liquid or solid material that can form a thin film on the surface of an object under certain conditions for protection, decoration or other special functions (insulation, rust prevention, mildew resistance, heat resistance, etc.). Because most of the early paints used vegetable oil as the main raw material, they are also called paints. Now synthetic resins have mostly or completely replaced vegetable oils, so they are called paints. There are three main functions: protection, decoration, and concealing the defects of the product to enhance the value of the product.

[0003] The harsh environment of oil casing at home and abroad is mainly manifested in: high temper...

Claims

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