Environment-friendly water-based asphalt waterproof coating and preparation method thereof

Active Publication Date: 2021-11-23
河北三棵树涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the research results show that the acrylic emulsion can significantly improve the bonding strength and anti-foaming ability of water-based asphalt coatings. The improvement of the effect is not satisfactory
Water-emulsion asphalt waterproof coatings are prone to breed various molds and other microorganisms due to long-term exposure to outdoor or humid environments. These molds will destroy the film-forming substances, reduce the adhesion and waterproof performance of the coating, and even lose the adhesion and waterproof performance.
However, in the traditional coating formula, more single components such as inorganic fungicides and organic fungicides are added or simply mixed with multiple components. After a period of use, these fungicides tend to lose their effect or lose their anti-mold and bactericidal effects.

Method used

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  • Environment-friendly water-based asphalt waterproof coating and preparation method thereof
  • Environment-friendly water-based asphalt waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of an environment-friendly water-based asphalt waterproof coating is as follows: add 10 parts of water and 25 parts of acrylic acid emulsion into a container and stir evenly at a low speed, then add 3 parts of defoamer and mix evenly at a speed of 700rpm, and then add 20 parts of inorganic fillers and 1 part of dispersant, stirred at a rate of 1000rpm for 30min; at a rate of 650rpm, sequentially added 60 parts of emulsified silane-modified asphalt, 20 parts of chloroprene latex, and stirred for 10 minutes; finally added 1 part of thickener and 0.5 parts of compound fungicide and 2 parts of solubilizer, and continue to stir for 5 minutes.

[0036] The preparation method of the above-mentioned emulsified silane-modified asphalt is as follows: add 8 parts of anionic slow-cracking emulsifier JY-AFF1 to 24.5 parts of water and dissolve at 50 ° C, add 15 wt% sodium hydroxide lye to adjust the pH value between 12-13, Then add 1.5 parts of ethylene glycol...

Embodiment 2

[0045] The preparation method of an environment-friendly water-based asphalt waterproof coating is as follows: add 20 parts of water and 10 parts of acrylic emulsion into a container and stir evenly at a low speed, then add 2 parts of defoamer and mix evenly at a speed of 500 rpm, and then add 30 parts of inorganic fillers and 3 parts of dispersant, stirred at 1200rpm for 20min; at 800rpm, sequentially added 80 parts of emulsified silane-modified asphalt, 15 parts of chloroprene latex, and stirred for 5min; finally added 2 parts of thickener and 0.8 parts of compound fungicide and 4 parts of solubilizer, and continue to stir for 10 minutes.

[0046] The preparation method of the above-mentioned emulsified silane-modified asphalt is: add 3 parts of anionic slow-cracking emulsifier JY-AFF1 to 49 parts of water and dissolve at 40°C, add 10wt% sodium hydroxide lye to adjust the pH value between 12-13, Then add 1 part of sodium carboxymethyl cellulose, mix well and add to the react...

Embodiment 3

[0055] The preparation method of an environment-friendly water-based asphalt waterproof coating is as follows: add 20 parts of water and 20 parts of acrylic acid emulsion into a container and stir evenly at a low speed, then add 1 part of defoamer and mix evenly at a speed of 600 rpm, and then add 10 parts of inorganic fillers and 2 parts of dispersant, stirred at 1100rpm for 30min; at 700rpm, sequentially added 70 parts of emulsified silane-modified asphalt, 5 parts of chloroprene latex, and stirred for 10min; finally added 2 parts of thickener and 1 part of compound fungicide and 3 parts of solubilizer, and continue to stir for 10 minutes.

[0056] The preparation method of the above-mentioned emulsified silane-modified asphalt is as follows: add 5 parts of anionic slow-cracking emulsifier JY-AFF1 to 41.5 parts of water and dissolve at 50 ° C, add 15 wt% sodium hydroxide lye to adjust the pH value between 12-13, Then add 2 parts of polyacrylamide, mix well and add to the rea...

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Abstract

The invention relates to an environment-friendly water-based asphalt waterproof coating and a preparation method thereof. The environment-friendly water-based asphalt waterproof coating is composed of the following raw materials in parts by weight: 60 to 80 parts of emulsified silane modified asphalt, 10 to 25 parts of an acrylic emulsion, 5 to 25 parts of neoprene latex, 1 to 3 parts of a defoaming agent, 1 to 2 parts of a thickening agent, 0.5 to 1 part of a composite sterilizing agent, 10 to 30 parts of an inorganic filler, 2 to 4 parts of a solubilizer, 1 to 3 parts of a dispersing agent and 10 to 20 parts of water. The emulsified asphalt is modified at normal temperature by adding a proper amount of acrylic emulsion and neoprene latex, then the thickening agent, the bactericide, the defoaming agent, the filler and the solubilizer are added, and all the components interact with one another, so that the water-based asphalt waterproof coating has excellent bonding strength, is good in bonding property when being used for a base layer, has excellent anti-stripping capability and anti-sliding performance, and has good anti-sagging performance.

Description

technical field [0001] The invention belongs to the technical field of waterproof coatings, in particular to an environment-friendly water-based asphalt waterproof coating and a preparation method thereof. Background technique [0002] With the development of road, bridge and construction engineering, asphalt is widely used in road and bridge engineering and waterproofing because of its excellent waterproof and cohesive properties. Asphalt waterproof coatings can be divided into two categories: water-emulsion asphalt waterproof coatings and solvent-based asphalt waterproof coatings according to their components. The use of organic solvents in solvent-based asphalt waterproof coatings is large, poor in safety, easy to cause environmental pollution, and seriously endanger the health of production personnel, testing personnel, and construction personnel. Water-emulsion asphalt waterproof coating is an oil-in-water emulsion formed by dispersing asphalt in water through high-she...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D183/04C09D183/05C09D133/00C09D111/02C09D5/14C09D7/61C09D7/63C09D7/65
CPCC09D195/005C09D5/14C09D7/61C09D7/63C09D7/65C08K2003/2248C08L33/00C08L11/02C08L83/04C08L91/00C08K3/22C08K5/41
Inventor 廖丽张文龙袁肖薛文军李小亮
Owner 河北三棵树涂料有限公司
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