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

An interior wall coating, anti-bacterial and anti-mildew technology, applied in alkali metal silicate coatings, fire-resistant coatings, anti-fouling/underwater coatings, etc., can solve waste of resources and energy, wall hollowing, environmental pollution, etc. problem, to achieve the effect of air permeability guarantee, long service life and good stability

Pending Publication Date: 2021-06-22
纽沃得复合建材(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

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preparation example Construction

[0048] The present invention does not have special limitation to the preparation method of described carrier nano-silver, for example, 1-100g kaolin, 10-1000ml mass percent content is the dimethylsulfoxide (DOSO) solution of 1%-100% and stirs 24- After 72 hours, a kaolin / dimethyl sulfoxide complex was formed; after that, wash twice with pure water and once with an organic solvent to remove impurities and excess dimethyl sulfoxide, and the organic solvent can be one of methanol and ethanol species; then the washed kaolin / dimethyl sulfoxide complex is dried in an oven, the temperature in the oven is 40-90°C, and then the dried kaolin / dimethyl sulfoxide complex is combined with surface active The surfactant is mixed and stirred evenly with a mass ratio of 200:1-2:1, and the surfactant can be any one, two or more of cationic, anionic and nonionic surfactants; after that, each 1- Add 10-1000ml of silver ammonia solution with a concentration of 0.001-1mol / L to 100g of kaolin / dimethy...

Embodiment 1

[0077] This embodiment provides an antibacterial, mildew-proof and flame-retardant silicate interior wall coating, the coating includes 40 parts of slurry, 50 parts of filler, 40 parts of diluent A, 20 parts of diluent B, and 2 parts of auxiliary agent in parts by mass .

[0078] The slurry, in parts by mass, consists of 5 parts of hydroxyethyl cellulose, 0.6 parts of a wetting agent, 0.6 parts of a dispersant, 0.2 parts of a defoamer, and 0.3 parts of other additives;

[0079] The hydroxyethyl cellulose is Dow QP300; the wetting agent is composed of ethanol and ethylene glycol, and the mass ratio of ethanol and ethylene glycol is 2:1; the dispersant is sodium hexametaphosphate; defoaming The agent is Zhonglian B-313 organosilicon defoamer; the other additives include antifungal agent and antioxidant, the antifungal agent is salicylanilide, and the oxidizing agent is BASF antioxidant B215.

[0080]The filler, in parts by mass, consists of 20 parts of carrier nano-silver, 10 p...

Embodiment 2

[0090] This embodiment provides an antibacterial, mildew-proof and flame-retardant silicate interior wall coating, the coating includes 40 parts of slurry, 50 parts of filler, 40 parts of diluent A, 20 parts of diluent B, and 2 parts of auxiliary agent in parts by mass .

[0091] The slurry, in parts by mass, consists of 5 parts of hydroxyethyl cellulose, 0.6 parts of a wetting agent, 0.6 parts of a dispersant, 0.2 parts of a defoamer, and 0.3 parts of other additives;

[0092] The hydroxyethyl cellulose is Dow QP300; the wetting agent is composed of ethanol and ethylene glycol, and the mass ratio of the ethanol and ethylene glycol is 2:1; the dispersant is sodium hexametaphosphate; Described defoamer is Zhonglian B-313 organosilicon defoamer; Described other additives are antifungal agent, antioxidant, and antifungal agent is salicylanilide, and described oxidizing agent is BASF antioxidant B215 .

[0093] The filler, in parts by mass, consists of 20 parts of nano-silver po...

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PUM

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14C09D5/18C09D1/04C09D7/61C09D7/63
CPCC09D1/04C09D5/14C09D5/18C09D7/61C09D7/63
Inventor 潘长铭赵永福葛玮潘善平
Owner 纽沃得复合建材(上海)有限公司
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