Anticorrosion and anti-rust waterborne acrylic coating and preparation method thereof

Abstract

The invention relates to the technical field of chemical industry and in particular relates to anticorrosion and anti-rust waterborne acrylic coating. Aiming at solving the technical problems, the invention provides the waterborne acrylic coating with excellent anticorrosion performance, good anti-rust effect and good stable performance. By adopting the technical scheme, the anticorrosion and anti-rust waterborne acrylic coating is characterized in that acrylic resin is prepared from the following raw materials in percentage by weight: 1 percent to 10 percent of acrylic acid, 5 percent to 20 percent of n-butyl acrylate, 1 percent to 10 percent of methyl methacrylate, 5 percent to 20 percent of hydroxyethyl acrylate, 1 percent to 10 percent of 2-ethylhexyl acrylate, 40 percent to 60 percentof isobornyl methacrylate, 5 percent to 50 percent of vinyl versatate Veova10, 10 percent to 50 percent of alicyclic acrylate, 0.1 percent to 20 percent of a chain extender, 0.5 percent to 5 percentof an initiator and 30 percent to 50 percent of water; the raw materials are prepared into waterborne acrylic resin with the Tg of -10 DEG C to 80 DEG C.

Description

technical field [0001] The present invention relates to the field of chemical engineering, in particular to an anti-corrosion and anti-rust water-based acrylic paint. Background technique [0002] The 21st century is a century of green and environmental protection. Resource saving, energy saving, and pollution-free are the main development directions of the world's coatings. At present, most of the anti-rust and anti-corrosion coatings used in China are solvent-based coatings. The biggest disadvantage of these coatings is that they pollute the environment, are flammable and explosive, harmful to the human body, and waste a lot of resources and energy. At present, the VOC content of solvent-based coating products in the market is as high as 50% to 60%, and the annual emission of VOC is nearly 200,000 tons, which not only pollutes the environment but also wastes energy. where the focus is. [0003] The base materials of water-based anti-corrosion coatings widely used in the ...

AI Technical Summary

Problems solved by technology

At present, most of the anti-rust and anti-corrosion coatings used in China are solvent-based coatings. The biggest disadvantage of these coatings is that they pollute the environment, are flammable and explosive, harmful to the human body, and waste a lot of resources and energy.

At present, the VOC content of solvent-based coating products in the market is as high as 50% to 60%, and the annual emission of VOC is nearly 200,000 tons, which not only pollutes the environment but also wastes energy. Therefore, the development of water-based anti-corrosion coatings will be a priority for the domestic and foreign coatings industry focus

[0003] The base materials of water-based anti-corrosion coatings widely used in the market are: water-based acrylic, water-based alkyd resin, water-based epoxy coatings, etc. Among them, water-based acrylic coatings are suitable for film-forming of various water-based coatings because of their excellent weather resistance and convenient construction. The most cost-effective polymer among substances, but there are three major problems in ordinary water-based acrylic paints: ①Poor salt spray resistance, generally no more than 120h; Contact, flash rust ③ Poor storage stability, poor anti-corrosion performance, how to solve these three problems will be the key to the promotion of water-based acrylic coatings in the chemical industry