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Environment-friendly paint for thermal-insulation decorative boards and preparation method thereof

A technology for thermal insulation decorative panels and environmentally friendly coatings, applied in the direction of anti-corrosion coatings, coatings, etc., can solve problems such as unsatisfactory coatings and difficult performance requirements for coatings, and achieve high scratch resistance and reduce emissions.

Inactive Publication Date: 2016-04-20
FIRST NEW MATERIAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the prior art, architectural coatings generally use pure acrylic emulsion, silicon acrylic emulsion, and fluorocarbon emulsion as the main film-forming substances, but it is difficult for the coating formed by this type of coating to meet the above performance requirements; currently only water-based two-component acrylic Solvent-based coatings such as polyurethane can meet the above performance requirements, but the existing solvent-based coatings do not meet the requirements of my country's environmental protection department for VOC (Volatile Organic Compounds, volatile organic compounds) emissions

Method used

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  • Environment-friendly paint for thermal-insulation decorative boards and preparation method thereof

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preparation example Construction

[0021] Specifically, the preparation method of the environmentally friendly coating for the thermal insulation decorative board may include the following steps:

[0022] Step A, according to wetting agent: anti-settling agent: leveling agent: dispersant: defoamer: rutile titanium dioxide: heavy calcium powder: pH regulator: water dispersible hydroxyacrylic acid: alkali swelling thickener: association Type thickener: water = 0.2: 0.3: 0.3: 1 ~ 2.3: 0.3: 20 ~ 30: 12: 0.1: 45 ~ 55: 0.3 ~ 0.5: 0.2 ~ 0.4: 9 ~ 12 parts by weight, respectively Wetting agent, anti-settling agent, leveling agent, dispersant, defoamer, rutile titanium dioxide, heavy calcium powder, pH regulator, water dispersible hydroxyacrylic acid, alkali swelling thickener, associative thickener agent and water. Wherein, the wetting agent can adopt H anionic surfactant H in the prior art, for example: alkyl sulfonate, fatty acid, H fatty acid ester H sulfate, carboxylic acid soap, phosphoric acid ester etc.; Descri...

Embodiment 1

[0029] A preparation method for an environmentally friendly coating for a thermal insulation decorative board may comprise the steps of:

[0030] Step A1, in parts by weight, weigh 0.2 parts of fatty acid ester sulfate as a wetting agent, 0.3 parts of hectorite clay as an anti-settling agent, 0.3 parts of macromolecular acrylic acid as a leveling agent, and 2.3 parts of sodium polyacrylate Salt as dispersant, 0.3 parts of silicone emulsion as defoamer, 26 parts of rutile titanium dioxide R902+, 6 parts of heavy calcium powder, 0.1 part of pH regulator, 55 parts of water dispersible hydroxyacrylic acid, 0.3 parts of alkali swelling thickener DR-72, 0.2 parts of associative thickener and 9 parts of water.

[0031]Step B1, add 8% water into the dispersion tank, and add wetting agent, anti-sedimentation agent, leveling agent, dispersant, defoamer and pH regulator into the dispersion tank at a speed of 300-500rpm ; After dispersing at a speed of 500-1000rpm for 10-20 minutes, add ...

Embodiment 2

[0035] A preparation method for an environmentally friendly coating for a thermal insulation decorative board may comprise the steps of:

[0036] Step A2, in parts by weight, weigh 0.2 parts of H phosphate ester H as a wetting agent, 0.3 parts of hectorite clay as an anti-settling agent, 0.3 parts of modified polysiloxane as a leveling agent, and 1.8 parts of non- Ionic fatty acid derivative as dispersant, 0.5 part of polyether siloxane and silicon dioxide mixture as defoamer, 30 parts of rutile titanium dioxide R706, 12 parts of heavy calcium powder, 0.1 part of pH regulator, 45 parts of water dispersible Hydroxy acrylic acid, 0.5 parts of alkali swelling thickener DR-72, 0.3 parts of associative thickener and 9 parts of water.

[0037] Step B2. Add 8% water into the dispersion tank, and add wetting agent, anti-sedimentation agent, leveling agent, dispersant, defoamer and pH regulator into the dispersion tank at a speed of 300-500 rpm ; After dispersing at a speed of 500-100...

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Abstract

The invention discloses an environment-friendly paint for thermal-insulation decorative boards and a preparation method thereof. The environment-friendly paint is prepared by mixing 5-6 parts by weight of first component and 1 part by weight of water-dispersible isocyanate. The first component is prepared by mixing 0.2 part of wetting agent, 0.3 part of anti-settling agent, 0.3 part of leveling agent, 1-2.3 parts of dispersing agent, 0.3 part of defoaming agent, 20-30 parts of rutile titanium white, 12 parts of heavy calcium carbonate powder, 0.1 part of pH regulator, 45-55 parts of water-dispersible hydroxyacrylic acid, 0.3-0.5 part of alkali-swellable thickener, 0.2-0.4 part of associated thickener and 9-12 parts of water. The environment-friendly paint has the advantages of high weather resistance, high hardness, high scratch resistance, high chemical resistance and the like, can satisfy the performance requirements for the decorative topcoat layer of the thermal-insulation decorative board, comprehensively lowers the VOC (volatile organic compound) emission amount, and can satisfy the requirements of the National Environmental Protection Department for VOC emissions.

Description

technical field [0001] The invention relates to the field of architectural coatings, in particular to an environmentally friendly coating used for thermal insulation decorative panels and a preparation method thereof. Background technique [0002] In recent years, since the integration of thermal insulation and decoration can not only improve the quality of the project and the decorative effect, but also greatly shorten the construction period, the thermal insulation and decorative panels that integrate thermal insulation and decoration are more and more favored by developers. [0003] In my country's construction industry industry standard "JG / T287-2013 Thermal Insulation Decorative Board Exterior Wall External Insulation System Materials", it is stipulated that the decorative surface of the thermal insulation decorative board must meet the performance indicators in the following table 1: [0004] Table 1: [0005] [0006] It can be seen from the performance indicators...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C09D5/08C09D4/02
CPCC09D133/00C08L2205/02C08L2205/03C08L2205/035C09D4/00C09D5/08C09D7/61C09D7/63C09D7/65C08L33/02C08K13/02C08K3/346C08K2003/265C08K2003/2241
Inventor 李娅杨会来
Owner FIRST NEW MATERIAL TECH DEV
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