Antibacterial, mildew-proof and flame-retardant silicate interior wall coating and preparation method thereof

Abstract

The invention relates to the field of building coatings, in particular to an antibacterial, mildew-proof and flame-retardant silicate interior wall coating and a preparation method thereof. The antibacterial, mildew-proof and flame-retardant silicate interior wall coating is prepared from, by mass, 30-60 parts of slurry, 45-55 parts of filler, 20-65 parts of diluent A, 10-25 parts of diluent B and 1-3 parts of auxiliaries; the slurry is prepared from the following components in parts by mass: 2 to 6 parts of hydroxyethyl cellulose, 0.3 to 1 part of a wetting agent, 0.1 to 1 part of a dispersing agent, 0.1 to 0.8 part of a de-foaming agent and 0.1 to 0.5 part of other auxiliary agents; the filler comprises the following components in parts by mass: 10-30 parts of carrier nano silver, 5-15 parts of titanium dioxide, 5-10 parts of kaolin, 10-15 parts of talcum powder and 10-30 parts of heavy calcium carbonate; the auxiliaries comprise the following components in parts by mass: 2-10 parts of propylene glycol, 0.1-3 parts of a defoaming agent, 0.1-1 part of a rheological modification auxiliary and 0.1-0.6 part of a polyurethane thickening agent. The antibacterial, mildew-proof and flame-retardant silicate interior wall coating disclosed by the invention is excellent in antibacterial, mildew-proof and flame-retardant properties, green, environment-friendly and long in service life.

Description

technical field [0001] The invention relates to the field of architectural coatings, in particular to an antibacterial, anti-mildew, flame-retardant silicate interior wall coating and a preparation method thereof. Background technique [0002] Indoor enclosure structures in the southern coastal areas of my country often breed microorganisms due to rainy, humid and condensation, especially the weak parts of the wall surface are prone to moisture and mildew, which greatly affects indoor air quality and human health. Brushing antibacterial and anti-mildew interior wall paint is one of the important means to improve the moldy problem of the wall. [0003] At present, pigments, fillers, carrier nano-silver and various additives are often added to silicate and silica sol (colloidal silica) inorganic coatings to make silicate and silica sol inorganic antibacterial, mildew-proof, and flame-retardant interior wall coatings. It has good water resistance, alkali resistance, pollution ...

AI Technical Summary

Problems solved by technology

Although "organic coatings" have been widely used for their good decoration, variety and low price, the main raw materials of "organic coatings" come from resources such as coal, oil, and natural gas, and a large number of by-products and volatilization will be produced during processing. Non-toxic solvents, which not only cause environmental pollution, but also waste a lot of resources and energy. At the same time, the organic paint coats the surface of the wall and the outside to form a coating film. The water in the wall is affected by the temperature and generates pressure, and the coating film is airtight. The force on the wall surface continuously acts on the coating film, and after a period of time, the wall coating film will appear hollow, air bubbles, or even fall off

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