High luster aqueous anticorrosion paint for engineering machinery chassis and its preparation method

Abstract

The invention discloses a high luster aqueous anticorrosion paint for an engineering machinery chassis, which comprises the following ingredients by weight percentage: 20-50% of aqueous resin, 0.01-0.08% of drier, 0.05-0.5% of neutralizer, 2-6% of dispersant, 10-32% of pigment and filler, 0.5-1% of anti-settling agent, 0.1-1% of wetting agent, 0.1-1% of leveling agent, 0.5-1% of thixotropic thickener, 0.1-1% of antifoaming agent, 0.5-1% of flash rusting resistant agent, 1.5-8% of cosolvent and 20-50% of deionized water. The invention also discloses a preparation method of the aqueous anticorrosion paint. The aqueous anticorrosion paint of the present invention has excellent anticorrosion performance, which is excellent corrosion resistance of an antirust priming paint, and can be substituted of a present solvent type chassis paint, the coating has good physical and chemical performances and corrosion resistance performance.

Description

technical field [0001] The invention relates to a chemical coating, in particular to a water-based anti-corrosion coating for a chassis of a high-gloss engineering machinery. The invention also relates to a method for preparing the coating. Background technique [0002] With the continuous improvement of people's environmental awareness, solvent-based coatings are facing serious challenges because they contain a large amount of volatile organic compounds. Water-based coatings use water as a solvent to save a lot of resources; water-based coatings eliminate the risk of fire during construction; reduce the impact on the atmosphere Pollution; water-based paint only uses a small amount of low-toxic alcohol ether organic solvents, which improves the working environment. The content of the organic solvent in the general water-based paint is between 10wt% and 15wt%, which has a remarkable effect on reducing pollution and saving resources. Water-based coatings can be directly appl...

AI Technical Summary

Problems solved by technology

At present, most construction machinery chassis manufacturers use solvent-based chassis coatings. The disadvantage of solvent-based coatings is that they use a lot of solvents to waste energy and pollute the environment. Harmful effects on human health. At present, with the gradual implementation of national environmental protection policies and energy-saving and emission-reduction policies, the research and development direction of coatings is becoming more and more clear, which is to seek coatings that continuously reduce VOC until it reaches zero. While ensuring high decoration and high corrosion resistance, it is developing towards the use of environmentally friendly materials and processes, and water-based coatings are the most important development direction.

[0004] The water-based coating of construction machinery chassis is a hot spot in the current application of construction machinery chassis coating. Some domestic construction machinery manufacturers have begun to try to apply water-based chassis coatings on tractors and agricultural vehicles to replace solvent-based anti-corrosion coatings. However, the glossiness of these water-based chassis coatings currently It is relatively low and needs a finish paint to improve the decoration. At the same time, the neutral salt spray test can only reach about 160 hours

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