Moisture-proof and mildew-proof dry powder coating

Abstract

The invention discloses moisture-proof and mildew-proof dry powder coating. The coating is prepared from the following raw materials in percentage by weight: 28 to 33% of white cement; 10 to 18% of white stone powder; 15%-17.5% of sepiolite, 8%-10% of diatomite, 7%-10% of titanium dioxide, 8%-10% of calcium oxide, 3%-5% of kaolin, 10%-13% of redispersible latex powder, 0.05%-0.07% of etherified starch, 0.3%-0.5% of a heterocyclic compound mildew preventive, 1.5%-1.8% of a photocatalyst and 0.85%-1% of cellulose. The components of the dry powder coating provided by the invention are matched with each other; the dry powder coating has excellent mildew-proof performance and scratch-proof performance, non-discoloring when meeting water, color stability, capability of adsorbing harmful substances such as indoor formaldehyde effectively, excellent environmental protection performance, and extremely high adsorption performance because the sepiolite and the diatomite are mutually matched and have a synergistic effect; water vapor in air is adsorbed in pores and cannot be adsorbed into water drops on the surface of the coating in the 'Huinan' days, the dryness of the surface of the coatingis guaranteed, people cannot feel uncomfortable, when the temperature rises again, water in the pores evaporates, and the coating has good moisture-proof performance.

Description

technical field [0001] The invention relates to the technical field of dry powder coatings, in particular to a moisture-proof and mildew-proof dry powder coating. Background technique [0002] Dry powder coating is a kind of coating that mainly uses inorganic materials as the main film-forming substance. It is widely used in the decorative coating of building exterior walls and interior walls. However, due to the south in the spring, it is easy to return to the south, which makes the building wall absorb a large amount of water droplets, and the traditional dry powder coating is easy to absorb a large amount of water droplets on the wall due to a small amount of organic matter and a large amount of inorganic fillers. After the surface absorbs moisture, it is easy to breed bacteria and mold, and the paint will change color after absorbing water droplets, and because the surface of the paint absorbs water differently when returning to the south, the color is inconsistent. nor...

AI Technical Summary

Problems solved by technology

However, due to the south in the spring, it is easy to return to the south, which makes the building wall absorb a large amount of water droplets, and the traditional dry powder coating is easy to absorb a large amount of water droplets on the wall due to a small amount of organic matter and a large amount of inorganic fillers. After the surface absorbs moisture, it is easy to breed bacteria and mold, and the paint will change color after absorbing water droplets, and because the surface of the paint absorbs water differently when returning to the south, the color is inconsistent. the normal use of the paint

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