Polyaniline graphene anti-corrosion coating and preparation method thereof

Abstract

The invention discloses a polyaniline graphene anti-corrosion coating and a preparation method thereof. The polyaniline graphene anti-corrosion coating comprises a wetting dispersant, a defoaming agent, a leveling agent, a curing agent, a curing accelerator, a solvent, epoxy resin, acrylic resin, a filler, a polyaniline graphene composite material and silicon micro-powder. The preparation method includes the steps: 1) pouring the epoxy resin and the solvent into a ball-milling tank and uniformly mixing the epoxy resin and the solvent to obtain a mixed solution; 2) adding the filler, the polyaniline graphene composite material and the silicon micro-powder into the mixed solution, grinding the mixed solution and then adding the curing agent and the curing accelerator to obtain grinding fluid; 3) adding the wetting dispersant, the defoaming agent, the leveling agent and the acrylic resin into the grinding fluid, uniformly stirring and mixing the wetting dispersant, the defoaming agent, the leveling agent, the acrylic resin and the grinding fluid to obtain the polyaniline graphene anti-corrosion coating. The anti-corrosion coating has good insulating property and durability, is beneficial to resisting physical damage to a film and excellent in comprehensive performance, and achieves an anti-corrosion function.

Description

technical field [0001] The invention relates to a polyaniline graphene anticorrosion coating and a preparation method thereof, belonging to the technical field of architectural coatings. Background technique [0002] Metal materials are damaged by the action of the surrounding medium, which is called metal corrosion (Metallic Corrosion). Metal rusting is the most common form of corrosion. During corrosion, a chemical or electrochemical heterogeneous reaction occurs at the interface of the metal, turning the metal into an oxidized (ion) state. This will significantly reduce the mechanical properties of metal materials such as strength, plasticity, and toughness, destroy the geometry of metal components, increase wear between parts, deteriorate electrical and optical physical properties, and shorten the service life of equipment. Corrosion of metals is very common. Among them, the corrosion of iron products, the metal with the largest amount, is the most common. There are ...

AI Technical Summary

Problems solved by technology

Some researchers used graphene as raw material to prepare polyaniline graphene composite materials. After adding it to the anti-corrosion coating system, the comprehensive performance of the coating film was greatly improved. If the required coating thickness was reduced, the coating adhesion and wear resistance increased, but Its anti-corrosion performance needs further study

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