Water-based building reflective insulation coating and processing method thereof

A technology of reflective heat-insulating coatings and reflective pigments, applied in the direction of reflection/signal coatings, coatings, etc., can solve the problems of easy damage to the outer wall, loss of heat insulation, consumption of paint viscosity, etc., achieve high solar reflectance and avoid safety hazards , the effect of preventing aggregation

Inactive Publication Date: 2020-04-28
江西爱森德实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the hollow microspheres are easy to destroy the outer wall with a hollow structure during the high-speed or long-term stirring process, thereby losing the function of heat insulation. After the outer wall is damaged, the specific surface area of ​​the solid content in the coating will increase greatly, which will consume a large amount of water in the coating and make it The sharp increase in the viscosity of the coating affects the normal use of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 of the present invention includes the following weight raw materials: 160kg of water, 1kg of hydroxyethyl cellulose, 2kg of multifunctional additives, 8kg of dispersant, 1kg of wetting agent, 3kg of defoamer, 200kg of rutile titanium dioxide, and ALTIRIS reflection 25kg of pigment, 50kg of kaolin, 25kg of mica powder, 75kg of heavy calcium powder, 20kg of film-forming agent, 400kg of pure acrylic emulsion, 10kg of humectant, 2kg of anti-mold preservative, 3kg of rheology modifier, and the particle size of ALTIRIS reflective pigment is 0.7nm , compared with high-brightness test data,

[0025] The solar reflectance is 0.85 (standard: ≥0.65);

[0026] The near-infrared reflectance is 0.85 (standard: ≥0.80);

[0027] The hemispherical emissivity is 0.88 (standard: ≥0.85);

[0028] The change rate of solar reflectance after pollution is 12 (standard: ≤20);

[0029] The change rate of solar reflectance after artificial weathering is 1 (standard: ≤5).

Embodiment 2

[0030] Embodiment 2 of the present invention includes the following weight raw materials: 160kg of water, 1kg of hydroxyethyl cellulose, 2kg of multifunctional additives, 8kg of dispersant, 1kg of wetting agent, 3kg of defoamer, 125kg of rutile titanium dioxide, and ALTIRIS reflection 100kg of pigment, 50kg of kaolin, 25kg of mica powder, 75kg of heavy calcium powder, 20kg of film-forming agent, 400kg of pure acrylic emulsion, 10kg of humectant, 2kg of anti-mold preservative, 3kg of rheology modifier, and the particle size of ALTIRIS reflective pigment is 0.7nm Comparison of lightness test data;

[0031] The solar reflectance is 0.80 (standard: ≥0.65);

[0032] The near-infrared reflectance is 0.87 (standard: ≥0.80);

[0033] The hemispherical emissivity is 0.88 (standard: ≥0.85);

[0034] The change rate of solar reflectance after pollution is 12 (standard: ≤20);

[0035] The change rate of solar reflectance after artificial weathering is 1 (standard: ≤5).

Embodiment 3

[0036] Embodiment 3 of the present invention includes raw materials of the following weight: 160kg of water, 1kg of hydroxyethyl cellulose, 2kg of multifunctional additives, 8kg of dispersant, 1kg of wetting agent, 3kg of defoamer, 50kg of rutile titanium dioxide, ALTIRIS Reflective pigment 175kg, kaolin 50kg, mica powder 25kg, heavy calcium powder 75kg, film-forming agent 20kg, pure acrylic emulsion 400kg, humectant 10kg, anti-mold preservative 2kg, rheology modifier 3kg, ALTIRIS reflective pigment particle size is 0.7 nm, low lightness test data comparison;

[0037] The solar reflectance is 0.68 (standard: ≥0.65);

[0038] The near-infrared reflectance is 0.90 (standard: ≥0.80);

[0039] The hemispherical emissivity is 0.88 (standard: ≥0.85);

[0040] The change rate of solar reflectance after pollution is 12 (standard: ≤20);

[0041] The change rate of solar reflectance after artificial weathering is 1 (standard: ≤5).

[0042] Embodiment 4 of the present invention, in t...

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Abstract

The invention discloses a water-based building reflective insulation coating and a processing method thereof. The water-based building reflective insulation coating comprises the following raw materials in parts by weight: 150-160 parts of water, 1-2 parts of hydroxyethyl cellulose, 1-2 parts of a multifunctional auxiliary agent, 6-9 parts of dispersing agent, 1-2 parts of a wetting agent, 1-3 parts of a defoaming agent, 50-200 parts of titanium dioxide, 25 to 175 parts of reflective pigment, 50-75 parts of kaolin, 25-50 parts of mica powder, 50-100 parts of coarse whiting powder, 10-20 partsof a film forming aid, 300-450 parts of a pure acrylic emulsion, 10-20 parts of a humectant, 1-3 parts of a mildew-proof preservative and 0.5-3 parts of a rheological modifier. The titanium dioxide isrutile titanium dioxide, and the reflective pigment is an ALTIRIS reflective pigment. Some potential safety hazards caused by using the traditional building thermal insulation material are avoided, and the pigments and fillers capable of reflecting infrared rays capable of generating heat energy in sunlight are added into the acrylic emulsion, so that the coating has relatively high sunlight reflectance and hemispherical emissivity, the coating has a decorative effect and can prevent heat from gathering on a wall body, and further the temperature of the wall body and an indoor environment isreduced.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a water-based building reflective heat-insulating paint and a processing method. Background technique [0002] Today, as low-carbon environmental protection requirements are getting higher and higher, buildings urgently need to reduce their energy consumption. The use of coatings with high solar reflectance can effectively reduce the temperature of the building surface and reduce the heat transmitted from the building surface to the interior of the building. , thereby reducing the indoor temperature and reducing the use of air conditioners. [0003] According to different wavelengths, sunlight can be divided into ultraviolet rays, visible light rays, and infrared rays. Among them, infrared rays (500-2500nm) are the main component of solar thermal energy, and also the main factor that solar thermal energy causes the internal temperature of buildings to rise. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/33
CPCC08K2003/2241C08K2003/265C09D5/004C09D133/04C08L1/284C08K13/02C08K3/22C08K3/346C08K3/34C08K3/26
Inventor 李定峰
Owner 江西爱森德实业有限公司
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