Environment-friendly single-component industrial anti-corrosion coating and preparation method thereof

Abstract

The invention relates to a waste-based coating, in particular to a water-based industrial anti-corrosion coating. The invention discloses the water-based industrial anti-corrosion coating and a preparation method thereof. The anti-corrosion coating is prepared from the following components in percentage by weight: 10 to 50 percent of modified water-based acrylic resin, 5 to 20 percent of anti-rust pigments, 0.5 to 20 percent of a filler, 10 to 40 percent of a solvent, 2 to 20 percent of an auxiliary, 0.1 to 4 percent of a water-based dryer, 0.1 to 4 percent of a diluent and 0.5 to 2 percent of a water-based thickener. The water-based industrial anti-corrosion coating does not have the problems of blistering, whitening, fracturing, delaminating and the like, can be firmly attached to the surface of a metal, and is high in flexibility and bonding strength; the salt fog resistance and the corrosion resistance of the water-based industrial anti-corrosion coating can be improved, and the drying performance of the coating is improved; the water-based industrial anti-corrosion coating is excellent in corrosion resistance; furthermore, the raw materials are highly available; the production process is simple, and the construction is convenient.

Description

technical field [0001] The invention relates to a water-based paint, in particular to a water-based industrial anticorrosion paint. Background technique [0002] Corrosion, especially of metals, causes huge economic losses. According to incomplete statistics, about 1 / 3 of the steel products in the world are lost due to corrosion every year; in my country, the direct economic loss caused by metal corrosion accounts for about 4% of the gross national product, and the economic loss reaches one trillion yuan. Practice has proved that the use of paint anti-corrosion protection on metal surfaces is the most effective, most economical and most widely used method. [0003] Solvent-based anti-corrosion coatings contain a large amount of organic solvents and toxic pigments, which seriously pollute the atmosphere and destroy the ecological environment. In recent years, with the improvement of national policies and people's awareness of environmental protection, and the implementation...

AI Technical Summary

Problems solved by technology

However, water-based alkyd has some obvious disadvantages: slow drying of the coating film, low hardness, poor water resistance and corrosion resistance, poor outdoor weather resistance, etc. In addition, the ester bond of water-based alkyd resin will be hydrolyzed during storage, and the performance needs to be improved.

The water-based anti-corrosion coating made by Wang Ruihong et al. "Development of Self-drying Acrylic Modified Alkyd Coating" uses acrylic modified alkyd resin to improve the shortcomings of water-based alkyd coatings such as slow drying, low hardness, and poor water resistance, corrosion resistance and weather resistance. Its water resistance and artificial aging resistance reach 94h and 900h respectively, but its drying performance is still unsatisfactory

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