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Highly contamination resistant heat-insulating building coating

A thermal insulation coating, mass percentage technology, applied in the direction of reflection/signal coatings, coatings, etc., can solve the problems of poor construction performance, decreased thermal insulation effect, decreased storage stability of coatings, etc., to improve living and working environment. , Stabilize heat insulation effect, reduce surface temperature effect

Inactive Publication Date: 2012-05-30
SHENZHEN JIADA HIGH TECH IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bulk density of the hollow microspheres is relatively small, and the volume is relatively large, which is easy to cause post-thickening of the coating, resulting in a decrease in the storage stability of the coating, so a special dispersion and addition process is required; the larger the particle size of the hollow microspheres, the better the heat insulation The effect is more obvious, but as the particle size of the hollow microspheres increases, the cavity wall of the microspheres is relatively thin, which is easily broken by high-speed shear, and the construction performance is not very good; after adding the coating made of hollow microspheres The surface is relatively rough, and the stain resistance is relatively poor. After being polluted, the heat insulation effect will drop significantly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 10kg of water, 2.0kg of propylene glycol, 0.5kg of dispersant, 0.1kg of wetting agent, 0.2kg of defoamer, 0.2kg of antifungal agent, 20kg of rutile titanium dioxide, 15kg of normal temperature far-infrared ceramic powder (infrared emitting powder), 1kg of rare earth , filler 15kg, high-speed dispersion and shearing to make a slurry, and then add 30kg of BASF's 1108s waterproof acrylic elastic emulsion (solid content 48% ± 1, minimum film-forming temperature 20 ° C), Rhett Chemical's modified silicone micro Emulsion Silomer 8861 (solid content 42% to 44%) 15kg, polymer 8.0kg, film-forming aid 2.0kg, defoamer 0.2kg, pH regulator 0.1kg, plus an appropriate amount of associative thickener to adjust to the needs Viscosity, disperse for 15 minutes, filter and pack. Tested by conventional methods, the surface solar reflectance of the coating film is 0.84, the hemispherical emissivity is 0.93, and the stain resistance is 5%.

Embodiment 2

[0026] Take 15kg of water, 4.0kg of propylene glycol, 1.0kg of dispersant, 0.1kg of wetting agent, 0.2kg of defoamer, 0.2kg of antifungal agent, 25kg of rutile titanium dioxide, 10kg of normal temperature far-infrared ceramic powder, 0.5kg of rare earth, 20kg of filler, high speed Disperse and shear to make a slurry, then add 40kg of acrylate elastic emulsion, 8kg of modified silicone microemulsion, 5kg of hiding power polymer, 3.0kg of film-forming aid, 0.2kg of defoamer, and 0.1kg of pH regulator. Add an appropriate amount of associative thickener to adjust to the required viscosity, disperse for 15 minutes, filter and pack. Tested by conventional methods, the surface solar reflectance of the coating film is 0.90, the hemispherical emissivity is 0.88, and the stain resistance is 10%.

Embodiment 3

[0028] Take 12kg of water, 3.0kg of propylene glycol, 0.8kg of dispersant, 0.1kg of wetting agent, 0.2kg of defoamer, 0.2kg of antifungal agent, 22kg of rutile titanium dioxide, 12kg of normal temperature far-infrared ceramic powder, 0.8kg of rare earth, 18kg of filler, high speed Disperse and shear to make slurry, then add acrylate elastic emulsion 35kg, modified silicone microemulsion 10kg, hiding power polymer 6kg, film-forming aid 2.5kg, defoamer 0.2kg, pH regulator 0.1kg, and then Add an appropriate amount of associative thickener to adjust to the required viscosity, disperse for 15 minutes, filter and pack. The surface solar reflectance of the coating film is 0.86, the hemispherical emissivity is 0.90, and the stain resistance is 8%.

[0029] The high stain-resistant building thermal insulation coatings provided by the above embodiments have good reflection effect on solar radiation heat, and can emit the heat accumulated on the surface to the external space in the form ...

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Abstract

The invention provides highly contamination resistant heat-insulating building coating, which comprises, by weight, from 30 to 40% of acrylate elastic emulsion, from 8 to 15% of modified organic silicon micro-emulsion, from 20 to 25% of rutile titanium dioxide, from 5 to 15% of infrared emitting powder and from 15 to 25% of filler. The highly contamination resistant heat-insulating building coating has a fine reflecting effect on solar radiation heat and is capable of emitting heat accumulating on the surface to the external space in a long wave form, so that surface temperature of a coated article is reduced, life and working environments can be improved, energy is saved and consumption is reduced. Furthermore, the coating has high contamination resistance, the reflecting effect on solar radiation cannot be reduced due to surface contamination, and accordingly the long-term stable heat-insulating effect can be maintained.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to a highly stain-resistant architectural heat-insulating coating. Background technique [0002] External wall insulation materials have been widely used. For the external insulation of commonly used polystyrene boards and polystyrene particle insulation coatings, when ordinary coatings are used for finishing, the temperature of the protective layer can reach 80°C in summer, and the surface temperature can vary. Reaching 50°C, which often causes cracking of the anti-crack protection layer, which not only puts forward higher requirements for the flexibility of the anti-crack protection material, but also requires the elasticity, water resistance, temperature change resistance, and stain resistance of the finishing coating. , aging resistance and other requirements are more stringent. [0003] General space reflective heat insulation coatings use hollow glass microsphe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D183/04C09D5/33
Inventor 熊永强谭亮
Owner SHENZHEN JIADA HIGH TECH IND DEV
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