High heat-resistant waterborne coating

Abstract

The invention discloses a high heat-resistant waterborne coating. The high heat resistant waterborne coating is made from a variety of raw materials, the high heat-resistant waterborne coating is prepared from, by weight, 100 parts of polyester imide resin, 10-80 parts of polyurethane modified acrylic resin, 0.1-1part of accelerant, 0.1-3 parts of cross-linking agents, 1-5parts of curing agents, 0.1-3 parts of antifoaming agents, 0.1-3 parts of flatting agents, 1-8 parts of coalescing agents, 0.1-3 parts of wetting agents, 0.1-3 parts of dispersing agents, 0.1-3parts of thickening agents, 0.1-1 part of initiating agent, 8-15 parts of pigments, 200 parts of deionized water and 10-50 parts of cosolvents. The invention further provides a preparation method of the high heat-resistant waterborne coating. The high heat-resistant waterborne coating has good heat resistance, and has a good heat insulation effect, can adapt to a higher temperature environment, the hardness of the coating is increased by adding a small amount of curing agent, and the coating has good high temperature resistance and weather resistance, thus not only the hidden danger of environmental pollution is reduced, andbut also the production cost can be reduced.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a coating with high hot water resistance and a preparation method thereof. Background technique [0002] Paint, its traditional name in China is paint. The so-called paint is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, oil, or emulsion, with or without adding pigments, fillers, adding The corresponding additives are viscous liquids prepared with organic solvents or water. The relatively authoritative book "Painting Technology" in the Chinese coatings industry defines it as follows: "Painting is a material that can be coated on the surface of an object by different construction techniques to form a firm adhesion, a certain strength, and a continuous coating." Solid film. The film formed in this way is commonly called coating film, also known as pai...

AI Technical Summary

Problems solved by technology

However, due to the addition of a curing agent to the two-component water-based paint, it has a certain impact on environmental protection, and the cost also increases accordingly.

[0009] For example, Chinese patent application 2013104638341 discloses an environmentally friendly water-based OP protective coating composition and its preparation and use. Its components contain a relatively high curing agent, which improves the hardness and scratch resistance of the coating. However, due to Its curing agent content is higher, therefore can produce certain influence to environment, and corresponding cost also can increase; And the heat resistance of water-based environmental protection coating prepared by the present invention is poor, is not suitable for high temperature environment

[0010] In view of the relatively poor heat resistance and weather resistance of most water-based coatings on the market, those skilled in the art have produced water-based coatings with good heat resistance

[0011] For example, Chinese patent application 2017105218228 discloses a mildew-proof and hot-water-resistant paint, which contains extracts of bamboo leaves, ginkgo leaves and pomegranate peels. The raw materials have a wide range of sources, but the extraction process of the extracts is complicated and time-consuming. Therefore, it will have a certain impact on environmental protection, and the corresponding cost will also increase, and the product stability is relatively poor, and it will deteriorate and cannot be used normally after long-term storage, which will cause waste

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