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Gray solar heat reflective cooling coating and preparation method thereof

A solar thermal and gray technology, applied in the direction of reflective/signal coatings, multi-color effect coatings, coatings, etc., can solve the problems of reducing solar heat reflectivity, increasing cooling energy consumption, and being easy to be stained, so as to improve near-infrared and Solar reflectance, improved cooling effect, excellent stain resistance effect

Active Publication Date: 2017-02-01
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, white solar heat reflective cooling paint has the following three disadvantages: 1. It lacks the aesthetic feeling of dark paint; 2. It is easy to cause light pollution when used on exterior walls and sloping roofs; 3. It is not resistant to dirt and is easily stained to reduce its solar heat reflection. Rate
When used for building roof and exterior wall decoration, it increases the heat absorption capacity of the building surface, resulting in high internal temperature of the building, causing an increase in the building's cooling energy consumption in summer and reducing the living comfort.
In addition, the existing cooling coating has disadvantages such as complex formula, cumbersome preparation process, poor anti-aging performance, short outdoor service life, poor adhesion, and no stain resistance.

Method used

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  • Gray solar heat reflective cooling coating and preparation method thereof
  • Gray solar heat reflective cooling coating and preparation method thereof
  • Gray solar heat reflective cooling coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A kind of gray solar heat reflection cooling paint is characterized in that: its component and weight ratio are:

[0054] 80 parts of white paint color paste;

[0055] Complementary color pigment paste 20 parts;

[0056] Wherein, the component of described white paint color paste and the weight ratio that share are as follows:

[0057] Acrylic emulsion 36 parts;

[0058] 16 parts of titanium dioxide;

[0059] 2.4 parts of talcum powder;

[0060] 3.2 parts of hollow glass microspheres;

[0061] 5.6 parts of heavy calcium carbonate;

[0062] 4 parts of far-infrared ceramic powder;

[0063] 0.8 parts of dispersant;

[0064] 0.8 parts of wetting agent;

[0065] 0.8 part of defoamer;

[0066] Leveling agent 0.8 part;

[0067] 0.8 part of film-forming aid;

[0068] 8.8 parts of water;

[0069] The components of the complementary color pigment mill paste and the proportions by weight are as follows:

[0070] 12 parts of water;

[0071] 7 parts of complementary co...

Embodiment 2

[0075] A kind of gray solar heat reflection cooling paint, is characterized in that:

[0076] By component and parts by weight proportioning is:

[0077] 85 parts of white paint color paste;

[0078] Complementary color pigment paste 15 parts;

[0079] Wherein, the component of described white paint color paste and the weight ratio that share are as follows:

[0080] 38.2 parts of acrylic emulsion;

[0081] 17 parts of titanium dioxide;

[0082] 2.6 parts of talcum powder;

[0083] 3.6 parts of hollow glass microspheres;

[0084] 6 parts of heavy calcium carbonate;

[0085] 4.3 parts of far-infrared ceramic powder;

[0086] Dispersant 0.9 parts;

[0087] 0.8 parts of wetting agent;

[0088] 0.9 part of defoamer;

[0089] Leveling agent 0.9 part;

[0090] 0.8 part of film-forming aid;

[0091] 9 parts of water;

[0092] The components of the complementary color pigment mill paste and the proportions by weight are as follows:

[0093] 11.7 parts of water;

[0094]...

Embodiment 3

[0098] A kind of gray solar heat reflection cooling paint, is characterized in that:

[0099] By component and parts by weight proportioning is:

[0100] 99 parts of white paint color paste;

[0101] Complementary color pigment paste 1 part;

[0102] Wherein, the component of described white paint color paste and the weight ratio that share are as follows:

[0103] Acrylic emulsion 44 parts;

[0104] 19 parts of titanium dioxide;

[0105] 3 parts talcum powder;

[0106] 3 parts of hollow glass microspheres;

[0107] 6 parts of heavy calcium carbonate;

[0108] 5 parts of far-infrared ceramic powder;

[0109] 1 part of dispersant;

[0110] 1 part of wetting agent;

[0111] 1 part of defoamer;

[0112] Leveling agent 1 part;

[0113] 1 part of film-forming aid;

[0114] 14 parts of water;

[0115] The components of the complementary color pigment mill paste and the proportions by weight are as follows:

[0116] 0.6 parts of water;

[0117] 0.2 parts of complementa...

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Abstract

The invention provides a gray solar reflective cooling coating and a preparation method of the gray solar reflective cooling coating. The coating adopts a water-based acrylic emulsion as film-forming base stock, so that the coating is good in ageing resistance, long in outside service life, nontoxic and environmentally-friendly, and has good stain resistance, alkali resistance and water resistance, and good adhesive force to base materials such as concrete, metal, wood and glass. The gray solar reflective cooling coating is prepared from complementary color pigment pairs with a strong near infrared reflection or transmission function, such as black and white, blue and orange, purple and yellow, red and blue and the like, and titanium dioxide as functional pigments, assisted by a plurality of body pigments and assistants; therefore, the gray solar reflective cooling coating is simple to prepare, low in cost and friendly to the environment. The gray solar reflective cooling coating has excellent near infrared reflection and heat insulation performances, has good cooling performance, and can be widely applied to decoration and energy conservation of roofs and outer walls of buildings, and the optical performance meets the latest national standard requirements.

Description

technical field [0001] The invention relates to a gray solar heat reflection cooling paint and a preparation method thereof, in particular to a gray solar heat reflection cooling paint with water-based acrylic emulsion as a film-forming base material and a preparation method thereof. Background technique [0002] White solar heat reflective cooling paint is the building surface material with the best known cooling effect because of its high reflectivity in the visible light (energy accounts for 45% of solar energy) and near-infrared (energy accounts for 50% of solar energy) regions. It has been widely used in energy saving of buildings. However, white solar heat reflective cooling paint has the following three disadvantages: 1. It lacks the aesthetic feeling of dark paint; 2. It is easy to cause light pollution when used on exterior walls and sloping roofs; 3. It is not resistant to dirt and is easily stained to reduce its solar heat reflection. Rate. Therefore, white sola...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D7/12C09D5/29C09D5/33C09D17/00
Inventor 张卫东秦杰宋建荣屈建张涛蒋立红李景芳石云兴宋中南
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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