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A kind of moisture-resistant high-strength environment-friendly polymer cement waterproof coating

A waterproof coating, environmental protection technology, applied in the direction of cement coatings, coatings, etc., can solve the problems of slow drying speed, low tensile and bonding strength, and inability to achieve high elongation of polymer cement waterproof coatings. The effect of insignificant attenuation, good environmental protection performance and fast drying speed

Active Publication Date: 2019-07-19
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it also has some defects, such as cracking at the inner corner, sagging in outdoor construction, not drying in high humidity environment, and low strength.
In addition, the climate difference between the north and the south of my country is obvious, especially in the south, where the humidity in the air is high, the drying speed of polymer cement waterproof coating is slow, and the tensile and bonding strength after drying are low.
[0003] At present, the prior art CN201510708150.2 discloses a high-strength high-strength polymer cement waterproof coating. JS, but because its products only have high elongation and high strength characteristics under normal temperature and humidity conditions, in the actual use process, due to the high temperature and high humidity environment, the performance of ordinary JS products is greatly attenuated, and in actual use it cannot reach the so-called The high-strength, high-strength functions, and the plasticizer dioctyl phthalate used in this invention has been explicitly banned in the ten-ring certification of the Ministry of Environmental Protection

Method used

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  • A kind of moisture-resistant high-strength environment-friendly polymer cement waterproof coating
  • A kind of moisture-resistant high-strength environment-friendly polymer cement waterproof coating
  • A kind of moisture-resistant high-strength environment-friendly polymer cement waterproof coating

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Preparation of component A: Take 480 parts of VAE emulsion (Wacker 558 series emulsion), 2 parts of dispersant and 8 parts of defoamer, 35 parts of plasticizer, 60 parts of water, and 0.5 part of water-based emulsion to dry agent, stir for 5 minutes, add 1.5 parts of thickener dropwise by decrement method under stirring state, and stir for 15 minutes to mix evenly and set aside.

[0023] 2. Preparation of component B: Take 300 parts of cement, add 700 parts of heavy calcium powder and 30 parts of sulphoaluminate rapid hardening cement and stir for 8 minutes, mix well, and set aside.

[0024] 3. Preparation of polymer cement waterproof coating: Add component B to component A according to A:B=10:12, stir for 5 minutes, stir evenly, and serve.

[0025] 4. Performance test: measure its performance after curing according to the standard GB / T23445-2009 Type II. Test its elongation at break of 120; its tensile strength is 3.8Pa, and its bonding strength reaches about 2.6Pa...

Embodiment 2

[0029] 1. Preparation of component A: Take 550 parts of VAE emulsion (Wacker 558 series emulsion), 2 parts of dispersant and 8 parts of defoamer, 15 parts of plasticizer, 50 parts of water, and 0.5 part of water-based emulsion to dry agent, stir for 5 minutes, add 2 parts of thickener dropwise with the subtraction method under stirring state, and stir for 15 minutes to mix evenly and set aside.

[0030] 2. Preparation of component B: Take 300 parts of cement, add 700 parts of wollastonite and 20 parts of sulphoaluminate rapid hardening cement, stir for 8 minutes, mix well, and set aside.

[0031] 3. Preparation of polymer cement waterproof coating: Add component B to component A according to A:B=10:12, stir for 5 minutes, stir evenly, and serve.

[0032] 4. Performance test: measure its performance after curing according to the standard GB / T23445-2009 Type II. Test its elongation at break of 110; its tensile strength is 3.7MPa, and its bonding strength reaches about 2.6Pa; ...

Embodiment 3

[0036] 1. Preparation of component A: Take 520 parts of VAE emulsion (Wacker 558 series emulsion), 7 parts of dispersant and 8 parts of defoamer, 30 parts of plasticizer, 50 parts of water, and 0.5 part of water-based emulsion to dry agent, stir for 5 minutes, add 1.5 parts of thickener dropwise by decrement method under stirring state, and stir for 15 minutes to mix evenly and set aside.

[0037] 2. Preparation of component B: Take 300 parts of cement, add 700 parts of quartz powder and 15 parts of sulphoaluminate rapid hardening cement, stir for 8 minutes, mix well, and set aside.

[0038] 3. Preparation of polymer cement waterproof coating: Add component B to component A according to A:B=10:12, stir for 5 minutes, stir evenly, and serve.

[0039] 4. Performance test: measure its performance after curing according to the standard GB / T23445-2009 Type II. Test the elongation at break of 100; the tensile strength is 3.8MPa, and its bonding strength reaches about 2.5Pa; place t...

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Abstract

A moisture-resistant and environmentally-friendly high-strength polymer and cement waterproof coating comprises a liquid and a powder, and the liquid and the powder are mixed according to a ratio of 1:(0.8-1.5) when in use, wherein the liquid comprises, by weight, 450-550 parts of an ethylene-vinyl acetate emulsion, 2-7 parts of a dispersant, 3-8 parts of an antifoaming agent, 30-60 parts of water, 20-50 parts of an environmentally-friendly plasticizer, 0.5-2 parts of an alkali-swelling thickener and 0.1-0.5 parts of an aqueous emulsion drier; and the powder comprises, by weight, 300-350 parts of white cement, 650-700 parts of 200 mesh wollastonite powder or 325 mesh quartz powder or 400 mesh heavy calcium, and 5-30 parts of sulfoaluminate rapid setting cement. The polymer and cement waterproof coating has the advantages of fast drying speed, excellent physical performances, good environmentally-friendly performance and low cost.

Description

technical field [0001] The invention relates to a polymer cement waterproof coating, in particular to a moisture-resistant, high-strength and environment-friendly polymer cement waterproof coating. Background technique [0002] Polymer cement waterproof coating (JS for short) has good waterproof, high cost performance and environmental protection characteristics, and has become the mainstream indoor and outdoor waterproof coating in the current home improvement and engineering market. However, it also has some defects, such as cracking at the inner corner, sagging in outdoor construction, not drying in high humidity environment, and low strength. In addition, the climate difference between the north and the south of our country is obvious, especially in the south, where the humidity in the air is high, the drying speed of polymer cement waterproof coating is slow, and the tensile and bonding strength after drying are low. [0003] At present, the prior art CN201510708150.2 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D123/08C09D1/08C09D7/63
CPCC08K3/26C08K3/34C08K3/36C08K2003/265C09D1/08C09D123/0853
Inventor 王辉黄凯王会元冉东升赵建成沈恒
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD