Aqueous metal anticorrosive coating

Abstract

The invention discloses an aqueous metal anticorrosive coating, and relates to the technical field of coatings, the aqueous metal anticorrosive coating comprises the following raw materials by weight:70-80 parts of acrylic resin, 10-18 parts of amino resin, 7-15 of aqueous epoxy resin emulsion, 3-7 parts of modified graphene, 2 to 5 parts of attapulgite, 2 to 5 parts of bentonite, 1 to 3 parts ofnano-silica, 2 to 4 parts of potassium titanate whisker, 1 to 3 parts of barium sulfate, 0.5-2 parts of a silane coupling agent, 1-3 parts of dicumyl peroxide, 2-5 parts of polyvinyl alcohol, 0.5-2 parts of sodium dodecyl diphenyl ether disulfonate, 0.5-2 parts of ethyl acetate, 2 to 6 parts of dipropylene glycol monobutyl ether, 0.5 to 2 parts of polyethylene wax, 0.5 to 2 parts of hydroxypropylmethylcellulose, 0.2 to 1 part of a leveling agent, 0.2-1 part of a defoamer, 1-3 parts of an anti flash rust agent and 10-20 parts of deionized water. The aqueous acrylic resin is used as a main film-forming substance, the amino resin and the aqueous epoxy resin emulsion are added for modifying, the modified graphene, the potassium titanate whisker and the like are added, and the obtained coating has excellent water resistance and acid-base corrosion resistance, and can extend the life of a metal.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based metal anticorrosion coating. Background technique [0002] Corrosion of metals is a phenomenon in which metals are damaged by electrochemical or chemical effects of environmental media. Metal corrosion pervades all areas of the national economy and has brought huge losses to the national economy. In industrially developed countries, the direct economic loss caused by metal corrosion accounts for 1% to 4% of the total output value of the national economy, and the rusty steel due to corrosion accounts for about 20% of the total output every year, and about 30% of the equipment is due to metal corrosion. Corroded and scrapped. In China, the annual economic loss due to metal corrosion accounts for 4% of the gross national product. Because of this, metal anti-corrosion coatings with excellent rust resistance and chemical medium corrosion resistance have developed rap...

AI Technical Summary

Problems solved by technology

Due to the wide use of metal products, many metal products have been subjected to friction tests for a long time. If anti-corrosion coatings are not coated, the service life of metal products will be greatly reduced due to metal corrosion and friction. Coating anti-corrosion coatings can reduce corrosion, but the existing Metal anti-corrosion coatings have poor acid and alkali corrosion resistance, and general water and impermeability, resulting in low anti-corrosion efficiency