High-water-resistance real stone paint for building exterior wall and preparation method thereof

Abstract

The invention provides a high-water-resistance real stone paint for a building external wall and a preparation method thereof and relates to the technical field of coatings. The paint is prepared fromthe following components in parts by weight: 30 to 40 parts of silicone acrylic emulsion, 10 to 15 parts of polysiloxane modified styrene-acrylic emulsion, 1-5 parts of natural latex, 4 to 8 parts offluorine-containing segmented copolymer, 50 to 60 parts of color sand, 5 to 12 parts of composite rock slices, 2 to 5 parts of silica sol, 0.5 to 2 parts of organic bentonite, 1 to 3 parts of wood fiber, 5-10 parts of polyether modified silicone oil coated silica powder, 0.01 to 0.03 part of triethanolamine, 1 to 3 parts of hydrogenated castor oil, 0.4 to 0.8 part of hydroxypropyl guar gum, 0.1 to 0.3 part of microcrystalline wax, 0.1 to 0.2 part of polyether surfactant, 0.5 to 1 part of antifreezing agent, 1 to 1.5 parts of coalescing agent, 0.1 to 0.15 part of defoaming agent, 5 to 10 partsof propylene glycol monomethyl ether and 40 to 60 parts of water. Various performance indexes of the real stone paint completely meet the JG/T 24-2000 standard requirements, and the water resistanceis excellent and is far higher than that of common standards.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high water-resistant real stone paint for building exterior walls and a preparation method thereof. Background technique [0002] With the development of society and the improvement of people's lives, green building has become a development trend in the end of my country's architecture. Natural stone is often used as building decoration materials because of its colorful and natural appearance, but its disadvantage is that it is heavy in quality. Increase the load of the wall, the construction is complicated and brittle, and there are many unsafe factors, which limit its application to a certain extent [0003] Real stone paint is a kind of bionic material with decorative effect similar to natural stone such as granite and marble, which is prepared by using various colors of stone powder, emulsion for architectural coatings and various additives. Due to its many excellent charac...

AI Technical Summary

Problems solved by technology

The real stone paint emulsion is styrene-acrylic emulsion 8777. The real stone paint of the invention uses a specific real stone paint emulsion and a quantitative amine neutralizer, which can reduce the amount of dispersant or even use no dispersant, thereby reducing the amount of defoamer and increaser. The use of thickening agent, the obtained real stone paint has good mixing stability; easy construction, good spraying performance, no cracking when drying and forming a film, and hard film after drying; good adhesion and weather resistance, it uses a single styrene-acrylic Emulsion, because the styrene monomer in the styrene-acrylic emulsion is more soluble in water than the butyl methacrylate (MBA) and ethyl methacrylate (MEA) monomers in the pure acrylic emulsion, so the water resistance is poor, and the paint film is prone to cracking white, short life

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