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Water-based thermal insulating nano-coating and preparation method thereof

A technology of thermal insulation coating and nano-slurry, applied in coating and other directions, can solve the problems of easy agglomeration of nanoparticles, large specific surface area and high surface energy, and achieve high solar reflectance, high hemispherical emissivity and good adhesion. Effect

Inactive Publication Date: 2014-04-09
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of small particle size, large specific surface area and high surface energy, nanoparticles are easy to agglomerate, and it is difficult to directly apply them in coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of nanometer water-based thermal insulation coating, described nanometer waterborne thermal insulation coating is composed as follows by mass percentage: tap water 20%, water-based acrylic emulsion 55%, high refractive index pigment 10%, filler 3%, thermal insulation material 7.95%, wetting 0.1% of agent, 0.5% of dispersant A, 0.1% of leveling agent, 1% of antifreeze, 0.1% of defoamer, 1% of film-forming aid, 0.2% of thickener, 0.05% of anti-mold and fungicide, water-based nano Slurry 1%. Wherein, the water-based nano-slurry is composed as follows by mass percentage: 30% of nano-titanium dioxide, 60% of tap water, 9.7% of dispersant B, 0.1% of wetting agent, 0.1% of defoamer, and 0.1% of anti-sedimentation agent; The sinking agent is bentonite; the dispersant B is an anionic polymer dispersant. The water-based acrylic emulsion is a water-based pure acrylic acid polymer emulsion; the high refractive index pigment is rutile titanium dioxide; the dispersant A is a ...

Embodiment 2

[0029] A kind of nanometer water-based thermal insulation coating, described nanometer waterborne thermal insulation coating is composed as follows by mass percentage: tap water 13%, water-based acrylic emulsion 50%, high refractive index pigment 11%, filler 3.5%, thermal insulation material 15%, wetting 0.15% of agent, 0.8% of dispersant A, 0.15% of leveling agent, 1.2% of antifreeze, 0.2% of defoamer, 1.5% of film-forming aid, 0.4% of thickener, 0.1% of anti-mold and fungicide, water-based nano Slurry 3%. Wherein, the water-based nano-slurry is composed as follows by mass percentage: 14.55% of nano-zirconia, 70% of tap water, 15% of dispersant B, 0.15% of wetting agent, 0.15% of defoamer, and 0.15% of anti-settling agent; The agent is fumed silica; the dispersant B is a non-ionic polymer dispersant; the water-based acrylic emulsion is a water-based styrene-acrylic acid copolymer emulsion; the high refractive index pigment is rutile titanium dioxide; the dispersant A is poly...

Embodiment 3

[0034] A kind of nanometer water-based thermal insulation coating, described nanometer waterborne thermal insulation coating is composed as follows by mass percentage: tap water 15%, water-based acrylic emulsion 53%, high refractive index pigment 12.23%, filler 4%, thermal insulation material 2%, wetting 0.2% of agent, 1% of dispersant A, 0.18% of leveling agent, 1.5% of antifreeze, 0.24% of defoamer, 2% of film-forming aid, 0.5% of thickener, 0.15% of anti-mold and fungicide, water-based nano slurry 8%. Wherein, the water-based nano slurry is composed as follows by mass percentage: 23.4% of nano-titanium dioxide, 75% of tap water, 1% of dispersant B1%, 0.2% of wetting agent, 0.2% of defoamer, and 0.2% of anti-settling agent; It is bentonite; the dispersant B is an inorganic dispersant; the water-based acrylic emulsion is a water-based silicone-acrylic copolymer emulsion; the high refractive index pigment is rutile titanium dioxide; the dispersant A is a synthetic polymer ; T...

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Abstract

The invention discloses a water-based thermal insulating nano-coating, which is characterized by being composed of the following components by mass percent: 10-20% of tap water, 45-55% of water-based acrylic emulsion, 10-15% of a high-refractive index pigment, 3-5% of a filler, 2-15% of a thermal insulation material, 0.1-0.3% of a wetting agent, 0.5-1.5% of a dispersant A, 0.1-0.2% of a flatting agent, 1-2% of an antifreezing agent, 0.1-0.3% of a defoamer, 1-3% of a coalescing agent, 0.2-0.6% of a thickening agent, 0.05-0.2% of a mildew resistant antibacterial agent and 1-10% of a water-based nano slurry. The water-based thermal insulating nano-coating has the beneficial effects that the coating layer is low in thickness, good in adhesion, high in shock strength and excellent in combination properties, the sunlight reflectivity and hemispherical emissivity of the nano-coating are high and the thermal insulation property of the nano-coating is excellent, the nano-coating is simple and easy to apply and can be directly sprayed, and compared with a solvent type coating, the VOC (Volatile Organic Compound) content of the water-based nano-coating is greatly reduced and the water-based thermal insulating nano-coating has extremely high environmental protection performance.

Description

technical field [0001] The invention relates to a nano water-based heat-insulating coating and a preparation method thereof, belonging to the technical field of heat-insulating coatings. Background technique [0002] With the rapid development of society, people are becoming more and more aware that energy and the environment will become problems that restrict future social development. Therefore, how to reduce energy consumption and reduce environmental pollution has become an urgent problem to be solved. In developed countries, building energy consumption usually accounts for about 30% to 40% of the total energy consumption of the society. As far as my country is concerned, according to the data released by the Ministry of Construction, the annual increase of 2 billion m 2 80% of the building area is high-energy buildings, and the existing 43 billion m 2 The proportion of high energy consumption buildings in the building area is as high as 95%; and compared with countries...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D125/14C09D7/12
Inventor 陈中华黄淑芬
Owner GUANGZHOU JOINTAS CHEM
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