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Water-borne acrylic type water-proof heat-insulating paint

A water-based acrylic and thermal insulation coating technology, applied in the direction of coating, can solve the problems of low thermal insulation performance, single variety and function, etc., and achieve the effects of high bonding strength, good elongation performance, and good waterproof and impermeable effect.

Active Publication Date: 2010-05-19
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of existing water-based heat-insulating coatings such as single variety and function, low heat-insulating performance, and environmental protection, the purpose of the present invention is to provide a waterproof and heat-insulating coating that uses water as a solvent and has high weather resistance and high heat reflectivity. Coatings, which can be used as decorative coating materials for roofs and exterior walls, applied to the surfaces of building exterior walls, roofs, glazed tiles, decorative tiles, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Utilize the coating that this coating (get quality 200 grams) to make, carry out following performance test respectively:

[0040] 1. The general performance meets the requirements of "Synthetic Resin Emulsion Exterior Wall Coatings" (GB / T9755-2001) for excellent products.

[0041] 2. Surface solar reflectance test: According to the "Architectural Reflective and Thermal Insulation Coatings" (JG / T235-2008), the reflectance and hemispherical reflectance of the paint in the spectral range of 250-2800nm. The result is a solar albedo of 0.85 and a hemispheric albedo of 0.86. This value shows that the average reflectance of sunlight between 250 and 2800 nm is 85%, and 86% of the absorbed energy can be radiated into space.

[0042]3. Heat insulation temperature difference test: apply the paint on a 10mm×10mm iron plate to make a sample. Put the prepared test sample and reference sample (painted with Hong brand ordinary exterior wall acrylic resin paint) into the tem...

Embodiment 2

[0046] serial number

[0047] serial number

[0048] Carry out function test with the method identical with embodiment one, result: conventional performance reaches " synthetic resin emulsion exterior wall coating " (GB / T9755-2001) index requirement; Solar reflectance is 0.83, and hemispherical reflectance is 0.85; Thermal insulation temperature difference The test results are: the temperature of the back box of the model is 11°C lower than the temperature of the back box of the reference model; the aging resistance time of the sample is 1000h without fading or pulverization; the waterproof properties such as water impermeability, low temperature flexibility, and tensile strength meet the requirements of "Polymer Emulsion Architectural Waterproof Coatings" (JC / T864-2008) Class II product index requirements.

Embodiment 3

[0050] serial number

[0051] serial number

[0052] Carry out function test with the method identical with embodiment one, result: routine performance reaches " synthetic resin emulsion exterior wall coating " (GB / T9755-2001) index requirement; Solar reflectance is 0.86, and hemispherical reflectance is 0.86; Thermal insulation temperature difference The test results are: the temperature of the back box of the model is 13°C lower than the temperature of the back box of the reference model; the aging resistance time of the sample is 1000h without fading or pulverization; the waterproof properties such as water impermeability, low temperature flexibility, and tensile strength meet the requirements of "Polymer Emulsion Architectural Waterproof Coatings" (JC / T864-2008) Class II product index requirements.

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Abstract

The invention provides water-borne acrylic water-proof heat insulating paint, which belongs to the field of building materials and can be applied to surfaces of building roofs, metal sheets, ceramic tiles, glazed bricks, decorative tiles and other materials. The invention provides the water-borne acrylic type water-proof heat-insulating paint by using copolymer latex which is cool mixed by elastic acrylic copolymer emulsion, VAE emulsion and an organic silicon water-proof material as a base material, and hollow glass beads in low heat conductivity, hollow ceramic beads and other heat insulating materials, titanium powder, zinc oxide, ultrafine mica and other reflecting materials, and corrosion-resistance blanc fixe, wollastonite and the like as pigments. In the paint, the solar reflectivity is more than or equal to 0.83, the semi-sphere reflectivity is more than or equal to 0.85, weather resistance aging time is 100 hours without fading or pulverizing, and water-proof performance, such as water tightness, low temperature flexibility, tensile strength and the like, can achieve II type product index requirement of JC / T864-2008. Besides the function of decorating materials, the paint has the functions of water proofing and heat insulation.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a water-based acrylic waterproof and heat-insulating coating, which can be applied to the surfaces of building roofs, metal plates, glazed bricks, decorative tiles and the like. In addition to the function of decorative materials, the paint also has excellent waterproof, thermal insulation functions. Background technique [0002] Building energy consumption accounts for more than 30% of human energy consumption. Improving the thermal insulation performance of buildings, improving the use of buildings, and saving energy and reducing consumption are another important consideration in the design of building materials. In the field of architectural coatings, the development goals at home and abroad are also developing in the direction of high efficiency, energy and resource saving, harmlessness and pollution-free. The architectural heat-reflecting and heat-insulating co...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D131/04C09D123/08C09D5/00
Inventor 王静冀志江曹延鑫王继梅王晓燕侯国艳李海建韩斌
Owner CHINA BUILDING MATERIALS ACAD
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