Mould-proof exterior wall paint and preparation method

A technology of exterior wall paint and redispersed latex powder, which is applied in the field of wall paint, can solve the problems of poor anti-mildew performance of exterior wall paint, reduced paint film service life, and paint film cracking, etc., and achieves excellent anti-mildew effect, wide Spectral bactericidal ability, the effect of reducing the degree of mold growth

Inactive Publication Date: 2016-01-27
CHONGQING FENGYUE BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The anti-mildew performance of the existing exterior wall paint is not good. When it is polluted by mold, mildew will occur, destroy the properties and structure of the paint film, and cause cracks in the paint film, which seriously affects the appearance of the coating and reduces the The service life of the paint film

Method used

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  • Mould-proof exterior wall paint and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A mildew-resistant exterior wall paint, which consists of the following components: 9kg of vinyl acetate and ethylene copolymer rubber powder, 6kg of wollastonite powder, 10kg of diatomite, 4kg of 1250-mesh ground calcium carbonate, 5kg of ethylene glycol, 2kg of Multifunctional additive AMP-95, 2kg dispersant, 2.5kg octylphenol polyoxyethylene ether series wetting agent, 1kg water-based acid alcohol resin defoamer, 2kg antifungal agent, 1.5kg anti-settling agent and 40kg water.

[0038] The antifungal agent is a quasi-powder synthesized by doping 0.4kg nanometer silver, 0.8kg nanometer copper and 0.8kg nanometer zinc.

[0039] The preparation method of this mildew-proof exterior wall paint is:

[0040] A. Weigh according to the ratio of raw materials and reserve;

[0041] B. Add water to the mixer, then add diatomaceous earth, wollastonite powder, ground calcium carbonate, ethylene glycol and dispersant in sequence, and stir at 680 rpm for 18 minutes at 32°C;

[0042...

Embodiment 2

[0044]A mildew-resistant exterior wall paint, consisting of the following components: 6kg of vinyl acetate and ethylene copolymer rubber powder, 15kg of wollastonite powder, 5kg of diatomite, 6kg of 1250-mesh ground calcium carbonate, 3kg of ethylene glycol, 5kg of Multifunctional additive AMP-95, 4kg dispersant, 1.5kg octylphenol polyoxyethylene ether series wetting agent, 1kg water-based acid alcohol resin defoamer, 1kg antifungal agent, 0.5kg anti-settling agent and 30kg water.

[0045] The antifungal agent is a quasi-powder synthesized by doping 0.2kg nanometer silver, 0.4kg nanometer copper and 0.4kg nanometer zinc.

[0046] The preparation method of this mildew-proof exterior wall paint is:

[0047] A. Weigh according to the ratio of raw materials and reserve;

[0048] B. Add water to the mixer, then add diatomaceous earth, wollastonite powder, heavy calcium carbonate, ethylene glycol and dispersant in turn, and stir at 680-750 rpm for 12- 18 minutes;

[0049] C. Add ...

Embodiment 3

[0051] A mildew-resistant exterior wall paint, consisting of the following components: 8kg of vinyl acetate and ethylene copolymer rubber powder, 9kg of wollastonite powder, 6kg of diatomite, 5kg of 1250-mesh ground calcium carbonate, 4kg of ethylene glycol, 3kg of Multifunctional additive AMP-95, 3kg dispersant, 2kg octylphenol polyoxyethylene ether series wetting agent, 2kg water-based acid alcohol resin defoamer, 1.2kg antifungal agent, 0.8kg anti-settling agent and 36kg water.

[0052] The antifungal agent is a quasi-powder synthesized by doping 0.24kg nano-silver, 0.48kg nano-copper and 0.48kg nano-zinc.

[0053] The preparation method of this mildew-proof exterior wall paint is:

[0054] A. Weigh according to the ratio of raw materials and reserve;

[0055] B. Add water to the mixer, then add diatomaceous earth, wollastonite powder, ground calcium carbonate, ethylene glycol and dispersant in sequence, and stir at 720 rpm for 15 minutes at 36°C;

[0056] C. Add dispersa...

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Abstract

The invention relates to mould-proof exterior wall paint and a preparation method. The mould resistance of the mould-proof exterior wall paint is remarkably improved. By comparison with the prior art, the mould growth degree of the exterior wall paint is reduced by 83.3%. Besides, the total quantity of volatile organic compounds in the mould-proof exterior wall paint, the content of benzene, the sum of the content of methylbenzene, the content of ethylbenzene and the content of xylene and the free formaldehyde content are remarkably reduced. By comparison with the prior art, the total quantity of the volatile organic compounds in the mould-proof exterior wall paint is reduced by 22.9%, the content of benzene is reduced by 25.4%, the sum of the content of methylbenzene, the content of ethylbenzene and the content of xylene is reduced by 24.0%, and the free formaldehyde content is reduced by 23.7%.

Description

technical field [0001] The invention relates to a wall paint, in particular to a mildew-resistant exterior wall paint. Background technique [0002] Exterior wall paint, also called exterior wall paint, is generally used for exterior walls, and can also be used in high-humidity places such as toilets. There are many types of exterior wall coatings, which can be divided into strong acid and alkali resistant exterior wall coatings, pure acrylic elastic exterior wall coatings, silicone self-cleaning elastic exterior wall coatings, advanced acrylic exterior wall coatings, fluorocarbon coatings, pastoral scenery low-carbon series, etc. . [0003] The anti-mildew performance of the existing exterior wall paint is not good. When it is polluted by mold, mildew will occur, destroy the properties and structure of the paint film, and cause cracks in the paint film, which seriously affects the appearance of the coating and reduces the The service life of the paint film. Contents of ...

Claims

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Application Information

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IPC IPC(8): C09D131/04C09D7/12
Inventor 杭跃
Owner CHONGQING FENGYUE BUILDING MATERIAL
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