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Indoor waterproof coating

A technology for waterproof coatings and raw materials, applied in cement coatings, coatings, etc., can solve problems such as harm to human health, insufficient flexibility of polymer cement-based waterproof coatings, and mismatch between coils and base layers. Excessive water demand, good waterproof effect

Inactive Publication Date: 2017-04-26
JIAHUA SPECIAL CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the existing indoor waterproof coating uses polyurethane waterproof coating to endanger human health, the mismatch between the coiled material and the base layer, and the lack of flexibility of the polymer cement-based waterproof coating, and provides a new indoor waterproof coating

Method used

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  • Indoor waterproof coating

Examples

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Effect test

Embodiment 1

[0022] An indoor waterproof coating, comprising the following raw materials in parts by weight: 10 parts of ordinary portland cement, 60 parts of heavy calcium, 30 parts of redispersible latex powder, 0.3 part of cellulose ether, 0.3 part of water reducing agent, defoaming 0.3 parts.

Embodiment 2

[0024] An indoor waterproof coating, comprising the following raw materials in parts by weight: 20 parts of medium heat portland cement, 60 parts of heavy calcium, 20 parts of redispersible latex powder, 0.5 part of cellulose ether, 0.5 part of water reducing agent, Foam agent 0.5 part.

[0025] In this embodiment, the fineness of heavy calcium is 200 mesh; the redispersible latex powder is ethylene-vinyl acetate copolymer; the cellulose ether is hydroxyethyl methyl cellulose ether, the viscosity is 15000mPa·s, and It is a polyether defoamer.

Embodiment 3

[0027] An indoor waterproof coating, comprising the following raw materials in parts by weight: 30 parts of low-heat Portland cement, 55 parts of heavy calcium, 15 parts of redispersible latex powder, 0.4 part of cellulose ether, 0.8 part of water reducing agent, defoaming 0.8 parts of the agent.

[0028] In this embodiment, the fineness of heavy calcium is 400 mesh; the redispersible latex powder is vinyl acetate-ethylene tertiary carbonate copolymer; the cellulose ether is hydroxyethyl methyl cellulose ether, and the viscosity is 50000mPa·s; the water reducer It is a powdery polycarboxylate superplasticizer, and the defoamer is a silicone defoamer.

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Abstract

The invention discloses an indoor waterproof coating, and belongs to the technical field of coating. The waterproof coating is prepared from, by weight, 10-30 parts of Portland cement, 40-60 parts of coarse whiting, 15-40 parts of redispersible powder, 0.3-0.5 part of cellulose ether, 0.3-0.8 part of water reducing agent and 0.3-0.8 part of antifoaming agent. The waterproof coating has the advantages of being environmentally friendly, good in waterproof performance, high in bonding strength, low in shrinking percentage and excellent in using performance.

Description

technical field [0001] The invention relates to an indoor waterproof coating, which belongs to the technical field of coatings. Background technique [0002] The current indoor waterproof materials mainly include: one is polyurethane waterproof coating, but when using this kind of coating, it is generally diluted with organic solvents such as toluene and xylene, so it also contains toxicity; the commonly used waterproof coating on the market is double Component type waterproof coating, one of its components is latex liquid. In order to improve the film-forming performance of the coating, organic solvents are usually added to the latex liquid, so that the content of volatile organic solvents and free formaldehyde is relatively high. During the construction process It will produce pungent smell, stimulate human skin and respiratory system, endanger human health, and it is troublesome to produce and transport; the second category is waterproof membrane, which has good flexibili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/08C09D7/12
CPCC09D1/08C09D7/61C09D7/65
Inventor 林燕夏艳晴
Owner JIAHUA SPECIAL CEMENT