Anti-corrosion high-intensity natural gas pipeline corrosion prevention paint

Abstract

The invention mainly relates to the technical field of pipeline corrosion prevention materials, and discloses anti-corrosion high-intensity natural gas pipeline corrosion prevention paint. The anti-corrosion high-intensity natural gas pipeline corrosion prevention paint is prepared from the following raw materials in parts by weight: 42-44 parts of polyvinyl acetate emulsion, 35-37 parts of a modified polyvinyl chloride resin, 6-8 parts of an activated carbon fiber, 4-6 parts of sodium methyl silicate, 3-5 parts of fatty acid methyl ester and 1.1-1.3 parts of titanium dioxide. The anti-corrosion high-intensity natural gas pipeline corrosion prevention paint provided by the invention can be tightly combined with natural gas pipeline, has relatively strong weather resistance and anti-corrosion performance, and is capable of inhibiting corrosion caused by making contact with natural gas and external complex soil components for a long time, prolonging the service life of natural gas pipelines and decreasing the maintenance cost; through adding the titanium dioxide after the polyvinyl acetate emulsion is heated, the strength and film forming property of the polyvinyl acetate can be improved, the paint can be tightly combined with the pipelines, the corrosion to the paint from the soil and the natural gas can be inhibited, and the protection action to the pipelines from the paint canbe improved.

Description

technical field [0001] The invention mainly relates to the technical field of pipeline anticorrosion material processing, in particular to a corrosion-resistant high-strength natural gas pipeline anticorrosion coating. Background technique [0002] Natural gas is used more and more widely as a clean energy. With the development of my country's West-to-East Gas Transmission, Sichuan-to-East Gas Transmission and China-Russia Pipeline and other projects, it has entered the peak period of natural gas pipeline construction. It is also called the gas transmission pipeline, which is used to transport the gas from the ground or processing plant to the urban gas distribution center or industrial enterprise users. The natural gas pipeline is in a complex soil environment, and it is easy to cause corrosion to the outer wall of the pipeline. At the same time, the natural gas transported will also cause corrosion to the inner wall of the pipeline. environment, and it is very easy to caus...

AI Technical Summary

Problems solved by technology

The natural gas pipeline is in a complex soil environment, and it is easy to cause corrosion to the outer wall of the pipeline. At the same time, the natural gas transported will also cause corrosion to the inner wall of the pipeline. environment, and it is very easy to cause a fire when exposed to an open flame, which has a great safety hazard, so the anticorrosion of natural gas pipelines is very important

[0003] The existing patent document CN 107774545 A discloses an anti-corrosion method for long-distance natural gas pipelines, specifically discloses the preparation of transition layer coatings, the preparation of functional layer materials and the use of double-layer coatings to coat pipelines. Different coatings and raw materials need to be configured. The process is complicated, and the coating in the patent document has good weather resistance, but the corrosion resistance is slightly poor, which affects the anti-corrosion effect of the coating on natural gas pipelines

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