Steel pipe anti-corrosion composite coating and preparation method thereof

Abstract

The invention discloses a steel pipe anti-corrosion coating and a preparation method thereof, and belongs to the technical field of chemical materials. The steel pipe anti-corrosion coating is prepared from, by weight, 5-12% of pigment, 3-8% of filler, 8-12% of dispersing agent, 6-12% of coalescing agent, 5-8% of defoaming agent, 2-6% of polyphenyl ether resin powder, 5-8% of butadiene styrene rubber, 3-6% of methylbenzene, 1-3% of plasticizer, 1-3% of coupling agent, 2-4% of auxiliaries, 1-3% of fire retardant, 2-4% of white carbon black, and the balance organosilicone modified epoxide resin.The preparation principle is clear, the method is scientific, the organosilicone modified epoxide resin has the advantages of being high in adhesive property, good in chemical reagent resistance andthe like, modified epoxy can enhance the water and ion permeation resistance of the coating, and the binding force between a metallic matrix and the coating is improved, so that the coating protectivecapability is improved, the high temperature resistance and the wear resistance of a steel pipe are enhanced, and the using safety of the steel pipe is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of chemical materials, and relates to an anti-corrosion composite coating and a preparation method thereof, in particular to an anti-corrosion coating for steel pipes and a preparation method thereof. Background technique [0002] Corrosion is the degradation and destruction of metal materials under natural conditions or working conditions due to chemical or electrochemical interactions with the surrounding medium. This phenomenon is called corrosion. Corrosion problems pervade various sectors and industries, and have caused great harm to national economic development, human life and social environment. According to statistics, the annual loss caused by corrosion in the world is as high as 1 trillion U.S. dollars, and the annual economic loss caused by corrosion damage in various countries accounts for about 2% to 4% of the national economic output value of the year. rather different. According to the "Chi...

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Problems solved by technology

[0004] The present invention aims at the disadvantages of complex construction of existing paint coatings during anti-corrosion, cumbersome preparation process of paint coatings, high cost, environmental pollution during preparation, and insufficient corrosion resistance of paint coatings, etc., and proposes a steel pipe anti-corrosion composite coating and its The preparation method can solve the above-mentioned deficiencies in the prior art, can enhance the high temperature resistance and wear resistance of the steel pipe, and can greatly improve the safety of the steel pipe