Novel anti-corrosion coating and preparation method thereof

Abstract

The invention discloses a novel anti-corrosion coating and a preparation method of the coating, which solves the problem that the existing fly ash anti-corrosion coating is difficult to disperse and the mechanical properties of the coating are reduced. The present invention uses the reflux method to graft phenylphosphonic acid and surfactant on the surface of fly ash, so that the phenylphosphonic acid and surfactant are hydrolyzed in the heating process, and then connect with some hydroxyl groups on the surface of fly ash, grafting The final fly ash eventually becomes sea urchin-like particles. Among them, the presence of phenylphosphonic acid improves the dispersion of fly ash particles in the resin and the bonding area with the resin, thereby greatly increasing the wear resistance of the coating; at the same time, the presence of phenylphosphonic acid and surfactants The corrosion inhibitor can be more evenly dispersed into the nano-micropores of the fly ash, and its corrosion inhibition effect can be exerted, and the anti-corrosion performance of the coating can be enhanced at the same time.

Description

technical field [0001] The invention relates to a pipeline anticorrosion coating and a preparation method thereof. Background technique [0002] Fly ash powder is often used as an inorganic filler to improve the mechanical properties, temperature resistance, corrosion resistance and wear resistance of metal pipeline coatings. However, in the preparation process, the fly ash and resin are usually simply mixed and ground. Finally, the performance of fly ash in the coating has not been effectively improved. [0003] The traditional application of corrosion inhibitor is to disperse the corrosion inhibitor into the fluid to prevent corrosion during the flow of the fluid, but this method of utilization is inefficient, and the introduction of the corrosion inhibitor into the solution will pollute the fluid. [0004] In addition, because the resin solution often cannot coexist with water, it is difficult to disperse the water-soluble corrosion inhibitor into the resin. Simply mixin...

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Problems solved by technology

[0003] The traditional application of corrosion inhibitor is to disperse the corrosion inhibitor into the fluid to prevent corrosion during the flow of the fluid, but this utilization method is inefficient, and the introduction of the corrosion inhibitor into the solution will pollute the fluid

[0004] In addition, because the resin solution often cannot coexist with water, it is difficult to disperse the water-soluble corrosion inhibitor into the resin. Simply mixing the corrosion inhibitor with the resin will affect the mechanical properties of the resin to a certain extent, just like adding some foam to the cement wall. Will greatly reduce the mechanical properties of the coating

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