Waterborne weather-resisting anticorrosive coating and preparation method thereof

Abstract

The invention relates to waterborne weather-resisting anticorrosive coating and a preparation method thereof and relates to the field of waterborne anticorrosive coating. The coating is prepared by uniformly mixing and stirring a resin component and an isocyanato curing agent component, wherein the resin component contains fluorocarbon resin, and the ratio of the hydroxyl mol number of the fluorocarbon resin to the isocyanato mol number of the isocyanato curing agent component is 1 to (1.02 to 1.05); the resin component also contains graphene powder which accounts for 0.1 to 5.0 percent of thetotal weight of the coating; the coating can be used for effectively improving the water resistance, acid resistance, alkali resistance, temperature and heat resistance, salt mist resistance and weather resistance of a whole body, so that the safe, green, environment-friendly and pollution-free utilization requirements on the coating in the market can be effectively met.

Description

technical field [0001] The invention relates to the field of water-based anti-corrosion coatings, in particular to a water-based weather-resistant anti-corrosion coating containing graphene components and a preparation method thereof. Background technique [0002] It is well known that due to the increasing awareness of environmental protection in various countries around the world, the efforts to control environmental pollution in various countries have gradually increased. Therefore, traditional oil-based coatings that occupy a dominant position in the coatings market and have serious environmental pollution have attracted attention and rejection. This directly As a result, coating manufacturers have begun to develop environmentally friendly water-based coatings; water-based coatings use water as a dispersion carrier, which has no pollution or relatively low pollution, and is environmentally friendly and has strong adhesion. It can be widely used in steel and ceramics. , w...

AI Technical Summary

Problems solved by technology

[0002] It is well known that due to the increasing awareness of environmental protection in various countries around the world, the efforts to control environmental pollution in various countries have gradually increased. Therefore, traditional oil-based coatings that occupy a dominant position in the coatings market and have serious environmental pollution have attracted attention and rejection. This directly As a result, coating manufacturers have begun to develop environmentally friendly water-based coatings; water-based coatings use water as a dispersion carrier, which has no pollution or relatively low pollution, and is environmentally friendly and has strong adhesion. It can be widely used in steel and ceramics. , walls and other surfaces as anti-corrosion coatings; however, the few water-based coatings currently on the market are relatively poor in terms of anti-corrosion performance, including weather resistance, that is, the performance of existing water-based coatings is far lower than that of oil-based coatings. , water resistance, alkali resistance, and salt spray resistance requirements, which cannot effectively meet market demand, and thus limit the practical application of water-based coatings. Among them, the weather resistance of coatings, that is, the aging resistance of coatings. A crucial factor that determines the life of the coating. However, in practical applications, the existing water-based coatings often have a significantly reduced service life due to the influence of natural climate factors. In severe cases, they can only maintain a service life of 3-5. , which is far lower than the normal life index of the coating. Therefore, how to improve the weather resistance of water-based anti-corrosion coatings and design a water-based anti-corrosion coating that can effectively improve the weather resistance has become one of the urgent problems in the coatings industry.