Weather resistant steel surface stabilization treatment liquid for marine atmospheric environment

Abstract

A weather resistant steel surface stabilization treatment liquid for marine atmospheric environment includes, by mass, 1-40% of closing membrane resin, 0.1-10% of granular resin, 0.05-10% of an improving element, 5-20% of pigment, 0.1-0.5% of a defoamer, 0.1-0.5% of a dispersant, 0.1-0.5% of a dustproof agent, and the balance being water or organic solvent. The stabilization treatment liquid can block the contact between chloride ions and the substrate while required water and air for forming a surface rust layer on the weather resistant steel can pass through. The stabilization treatment liquid contains a substance which promotes the stabilized generation of the surface rust layer, so that a proper environment for generation of the surface rust layer on the weather resistant steel in themarine atmospheric environment is formed, thus achieving non-maintenance use of the weather resistant steel in the marine atmospheric environment.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion of steel materials, in particular to a surface stabilization treatment liquid for weather-resistant steel used in marine and atmospheric environments. Background technique [0002] During the use of weathering steel, the surface rust structure gradually tends to be dense and stable, which can isolate the contact between atmospheric corrosion factors and the weathering steel matrix, avoid continuous corrosion of the weathering steel matrix, and achieve atmospheric corrosion resistance. The best way to use weathering steel is to use it naked. However, in the natural environment, it takes 3 to 10 years to stabilize the rust layer on the surface of weathering steel. In the marine atmosphere environment, due to the Cl — The existence of the steel changed the evolution path of the surface rust structure, resulting in the inability to form a dense and stable rust layer, so that the weathering stee...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is similar to that of Patent No. 3, and it cannot prevent Cl — Contact with the substrate

[0007] The currently developed methods for stabilizing the rust layer on the surface of weathering steel cannot effectively prevent Cl in the marine and atmospheric environment. — The contact with the weathering steel substrate creates a suitable environment for the stable formation of the rust layer on the weathering steel surface

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