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Self-closing polymer cement waterproof coating and preparation method thereof

A waterproof coating and polymer technology, applied in the field of self-closing waterproof coating and its preparation, can solve the problems of unsatisfactory waterproof effect and unsolved problems.

Active Publication Date: 2012-01-18
大岩(上海)建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical engineering applications, the waterproof effect of polymer cement waterproof coatings is sometimes unsatisfactory, mainly because once penetrating cracks are generated due to external forces or structural stresses, water leakage cannot be prevented.
This type of problem has been solved by osmotic crystallization technology in rigid cement-based waterproof materials, but it has not been solved in flexible polymer cement (JS) waterproof coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A self-closing polymer cement waterproof coating, which is composed of powder and liquid. The powder and liquid are calculated by weight ratio, that is, powder: liquid is 1:1;

[0035] Wherein the powder is composed of cement, quartz powder, filler kaolin and active masterbatch FLW, and the content of cement, quartz powder, filler kaolin and active masterbatch FLW in the powder is calculated as follows in parts by weight:

[0036] 25 parts of cement

[0037] Quartz powder 25 parts

[0038] Kaolin 20 parts

[0039] Active masterbatch FLW 2 parts

[0040] The liquid material is composed of water, wetting agent W-205, plasticizer dioctyl phthalate, silicone defoamer and polymer emulsion, namely ethylene-vinyl acetate emulsion. In the liquid material, water, wetting agent W- 205. The content of plasticizer dioctyl phthalate, silicone defoamer and polymer emulsion, ie, ethylene-vinyl acetate emulsion, is calculated in parts by weight as follows:

[0041] Ethylene-vinyl a...

Embodiment 2

[0054] A self-closing polymer cement waterproof coating, which is composed of powder and liquid. The powder and liquid are calculated by weight ratio, that is, powder: liquid is 1:1;

[0055] Wherein the powder is composed of cement, quartz powder, filler calcium carbonate and active masterbatch FLW, and the content of cement, quartz powder, filler calcium carbonate and active masterbatch FLW in the powder is calculated as follows in parts by weight:

[0056] 45 parts of cement

[0057] Quartz powder 45 parts

[0058] Calcium carbonate 40 parts

[0059] Active masterbatch FLW 10 parts

[0060]The liquid material is composed of water, wetting agent SILCO WET 065, plasticizer trimethylpentanediol diisobutyrate, silicone defoamer and polymer emulsion (acrylic emulsion). The content of SILCO WET 065, plasticizer trimethylpentanediol diisobutyrate, silicone defoamer and polymer emulsion, that is, acrylate emulsion is calculated in parts by weight as follows:

[0061] Acryl...

Embodiment 3

[0073] A self-closing polymer cement waterproof coating, which is composed of powder and liquid. The powder and liquid are calculated by weight ratio, that is, powder: liquid is 1:1;

[0074] Wherein the powder is composed of cement, quartz powder, filler calcium carbonate, talcum powder and active masterbatch FLW, and the content of cement, quartz powder, filler calcium carbonate and active masterbatch FLW in the powder is calculated as follows in parts by weight:

[0075] 35 parts of cement

[0076] Quartz powder 32 parts

[0077] Calcium carbonate 20 parts

[0078] Talc powder 10 parts

[0079] Active masterbatch FLW 4 parts

[0080] The liquid material consists of water, wetting agent SN-WET992, plasticizers dibutyl phthalate and trimethylpentanediol diisobutyrate, silicone defoamer and polymer emulsion namely ethylene-vinyl acetate emulsion Composed of acrylate emulsion, water in liquid material, wetting agent SN-WET992, plasticizer dibutyl phthalate and trimethylpent...

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PUM

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Abstract

The invention discloses a self-closing polymer cement waterproof coating and a preparation method thereof. The self-closing polymer cement waterproof coating comprises powder and liquid materials in a weight ratio of 1:1, wherein the powder comprises 25-45 parts of cement, 25-45 parts of quartz powder, 20-40 parts of filler and 2-10 parts of active master batch FLW; and the liquid materials comprise 10-20 parts of water, 0.1-0.5 part of wetting agent, 1-5 parts of plasticizer, 0.1-0.5 part of silicone defoamer and 70-90 parts of polymer emulsion. The preparation method comprises the steps of liquid material component preparation and powder component preparation. The self-closing polymer cement waterproof coating has the self-closing performance after a waterproof film has cracks due to external factors and simultaneously has higher breaking elongation, and the elasticity of the waterproof coating is greatly better than that of rigid cement-based waterproof materials.

Description

technical field [0001] The invention relates to a self-closing waterproof coating and a preparation method thereof, in particular to a self-closing polymer cement waterproof coating and a preparation method thereof. Background technique [0002] Polymer cement waterproof coating (referred to as JS waterproof coating) is a two-component coating composed of polymer emulsion (acrylate emulsion, ethylene-vinyl acetate emulsion, etc.) and cement, quartz powder, inorganic fillers and additives. Since this kind of coating is composed of two components of "polymer emulsion-cement", it has the characteristics of "combining rigidity and softness". Advantages of base bonding. The ratio of polymer emulsion to cement can be adjusted to meet the requirements of different projects on flexibility and strength, and the construction method is convenient. This kind of coating uses water as a dispersant, which solves the environmental pollution caused by tar, asphalt, solvent and other solven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/27
Inventor 余金妹吴蓁
Owner 大岩(上海)建筑材料有限公司
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