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Thick coating type whitening-resistant waterproof coating and preparation method thereof

A waterproof coating and anti-whitening technology, which is applied in the coating and other directions, can solve the problems of reducing customer satisfaction with the product, affecting the appearance of the waterproof coating film, and uneven color on the surface of the coating film, achieving a good anti-whitening effect and preventing flooding whitening phenomenon, reduce capillary channel effect

Inactive Publication Date: 2021-10-22
上海伟星新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the color of the waterproof coating film is gray after drying, the calcium hydroxide and calcium carbonate substances remaining on the surface of the waterproof coating film will cause uneven color on the surface of the coating film, resulting in serious whitening on the surface of the coating film
This whitening phenomenon will seriously affect the appearance of the waterproof coating and reduce customer satisfaction with the product

Method used

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  • Thick coating type whitening-resistant waterproof coating and preparation method thereof
  • Thick coating type whitening-resistant waterproof coating and preparation method thereof
  • Thick coating type whitening-resistant waterproof coating and preparation method thereof

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preparation example Construction

[0027] The application provides a thick-coated anti-whitening waterproof coating and a preparation method thereof. The coating is two-component, which includes A component and B component, and A component includes the following substances in parts by mass: 30-60 parts of cement, 20-50 parts of filler, 10-40 parts of quartz sand, 0 parts of sugar ~10 parts, 0~3 parts of water reducing agent, 2~8 parts of calcium formate; B component includes the following substances by mass: 70~95 parts of polymer styrene-acrylic emulsion, 2~8 parts of polymer VAE emulsion, thickening 0-1 part of antifoaming agent, 1-7 parts of antifoaming agent, 0-4 parts of fungicide, 50-200 parts of water.

[0028] The waterproof coating of the present invention comprises A component and B component. The polymer VAE emulsion in component A can effectively improve the compactness of the coating film, reduce the capillary channels of the coating film, and reduce the migration of calcium ions; while the calciu...

Embodiment 1

[0043] A thick-coated anti-whitening waterproof coating, the coating includes A component and B component, A component includes the following materials in parts by mass: 450 parts of cement, 332 parts of 325 heavy calcium, 212 parts of quartz sand, 4 parts of sucrose parts, 1 part of water reducer, 5 parts of calcium formate; B component includes the following parts by mass: 880 parts of polymer styrene-acrylic emulsion, 40 parts of polymer VAE emulsion, 0.1 part of thickener, 5 parts of defoamer, 2 parts of fungicide, 73 parts of water. The mass ratio of component A and component B is 1:1.5.

Embodiment 2

[0045] A thick-coated anti-whitening waterproof coating, the coating includes A component and B component, A component includes the following materials in parts by mass: 450 parts of cement, 332 parts of 325 heavy calcium, 212 parts of quartz sand, gluconic acid 4 parts of sodium, 1 part of water reducer, 5 parts of calcium formate; component B includes the following parts by mass: 880 parts of polymer styrene-acrylic emulsion, 40 parts of polymer VAE emulsion, 0.1 part of thickener, 5 parts of defoamer 2 parts, 2 parts of fungicide, 73 parts of water. The mass ratio of component A and component B is 1:1.5.

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Abstract

The invention relates to a thick coating type whitening-resistant waterproof coating and a preparation method thereof. The coating comprises two components and comprises a component A and a component B, wherein the component A comprises the following substances in parts by mass: 30-60 parts of cement, 20-50 parts of filler, 10-40 parts of quartz sand, 0-10 parts of carbohydrates, 0-3 parts of a water reducing agent and 2-8 parts of calcium formate; and the component B comprises the following substances in parts by mass: 70-95 parts of a polymer styrene-acrylic emulsion, 2-8 parts of a polymer VAE emulsion, 0-1 part of a thickening agent, 1-7 parts of a defoaming agent, 0-4 parts of a bactericide and 50-200 parts of water. The waterproof coating disclosed by the invention is prepared by uniformly stirring and mixing the weighed substances of the component A and the component B according to the required proportion; when the double-component waterproof paint is applied in a thick-coating manner, the phenomenon that the surface of a coating is whitened is avoided, the double-component waterproof paint is high in adhesive force with a base layer, and the double-component waterproof paint has good physical and mechanical properties and an anti-whitening effect.

Description

【Technical field】 [0001] The invention relates to the technical field of waterproof coatings, in particular to a thick-coated anti-whitening waterproof coating and a preparation method thereof. 【Background technique】 [0002] Polymer cement waterproof coating is a two-component, water-based architectural waterproof coating composed of organic polymer emulsion and inorganic cement. Wet substrate adhesion and other characteristics are combined in one body. This kind of waterproof coating uses water as a solvent, overcomes the disadvantages of pollution caused by tar, asphalt and solvent-based waterproof coatings, and is non-toxic, non-flammable, convenient to produce and use, and has low safety and production costs. It meets the requirements advocated by the state. Environmental protection requirements, conform to the trend of green and environmental protection of waterproof coatings. [0003] Cement is an important ingredient in waterproof coatings. The process of cement r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D131/04C09D7/61C09D7/63
CPCC09D125/14C09D7/61C09D7/63C08K2003/265C08K2201/014C08L31/04C08K13/02C08K3/26C08K3/36C08K5/098C08K5/1545
Inventor 张敬
Owner 上海伟星新材料科技有限公司
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