Preparation method of wear-resistant corrosion-resistant coating

Abstract

The invention relates to a preparation method of a wear-resistant corrosion-resistant coating, which comprises the following steps: (1) preparing the following raw materials in percentage by weight: 50-60% of resin, 23-40% of filler, 1-3% of leveling agent, 4-6% of curing agent, 2-3% of coupling agent and 3-5% of modifier; and (2) putting all the raw materials in the step (1) into an ultrafine powder ball mill, mixing and grinding until the particle size is 1200 meshes or above, thereby obtaining the wear-resistant and corrosion-resistant coating. According to the technical scheme, the carbonnano tubes selectively used in the coating have the characteristics of wear resistance, corrosion resistance, good stability and the like, the nano microlite has the characteristics of permeation resistance, good wear resistance and the like, and the nano sepiolite powder has the advantages of high adsorbability, high flame retardance, high temperature resistance, good wear resistance and the like; the carbon nanofibers have the advantages of wear resistance, corrosion resistance, high surface gloss and the like, and the nano ceramic powder has the advantages of wear resistance, high temperature resistance, corrosion resistance and the like.

Description

technical field [0001] The invention relates to a method for preparing a wear-resistant and corrosion-resistant coating, which belongs to the technical field of coatings. Background technique [0002] The types of traditional thin film coatings include oxide films, nano-metal layers, diamond films, etc. However, there are certain problems in these coating technologies: due to the limitation of the preparation technology, the oxide film will be too thick to reduce thermal conductivity and increase brittleness. , the thermal expansion coefficient does not match, the preparation process may introduce thermal neutrons, elements with high absorption cross-sections and other problems; and the thickness of the nano-metal layer is difficult to control during the preparation process and the metal layer is hydrophilic, and the corrosion resistance effect is not obvious; the diamond film Prepared by plasma chemical vapor deposition, however, diamond has high hardness, high brittleness ...

AI Technical Summary

Problems solved by technology

[0002] The types of traditional thin film coatings include oxide films, nano-metal layers, diamond films, etc. However, there are certain problems in these coating technologies: due to the limitation of the preparation technology, the oxide film will be too thick to reduce thermal conductivity and increase brittleness. , the thermal expansion coefficient does not match, the preparation process may introduce thermal neutrons, elements with high absorption cross-sections and other problems; and the thickness of the nano-metal layer is difficult to control during the preparation process and the metal layer is hydrophilic, and the corrosion resistance effect is not obvious; the diamond film Prepared by plasma chemical vapor deposition, however, diamond has high hardness, high brittleness and is easy to fall off. After irradiation, sp3 bonds are transformed into sp2 bonds. These problems are inevitable and become its limiting factor. Therefore, the effect on improving the wear resistance and corrosion resistance of materials is not obvious.

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