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Black solar heat reflective cooling coating and preparation method thereof

A solar heat and black technology, applied in the direction of reflection/signal paint, coating, etc., can solve the problems of complex formula of cooling paint, short outdoor service life, poor anti-aging performance, etc., to improve solar heat reflectivity and cooling effect, Excellent light stability and weather resistance, good effect of anti-aging performance

Inactive Publication Date: 2014-12-17
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A black solar heat reflection cooling paint, characterized in that: its components and weight ratio are:

[0043] Acrylic emulsion 40 parts;

[0044] 1 part black functional pigment;

[0045] 0.1 part of decolorizing pigment;

[0046] Body pigment 10 parts;

[0047] 1 part of auxiliary agent;

[0048] 1 part of water;

[0049] The components and parts by weight ratio of the extender pigment are:

[0050]5 parts of talcum powder;

[0051] 1 part of heavy calcium carbonate;

[0052] 1 part barium sulfate;

[0053] 3 parts of silicon dioxide;

[0054] Components and parts by weight of the auxiliary agent are:

[0055] Dispersant 0.1 part;

[0056] Wetting agent 0.1 part;

[0057] 0.3 part of defoamer;

[0058] Leveling agent 0.3 parts;

[0059] 0.2 parts of film-forming aids.

[0060]

Embodiment 2

[0062] A black solar heat reflection cooling paint, characterized in that: its components and weight ratio are:

[0063] Acrylic emulsion 50 parts;

[0064] 5 parts of black functional pigment;

[0065] 1 part of decolorizing pigment;

[0066] Body pigment 30 parts;

[0067] 5 parts of auxiliary agent;

[0068] 10 parts of water;

[0069] The components and parts by weight ratio of the extender pigment are:

[0070] 15 parts of talcum powder;

[0071] 2 parts of heavy calcium carbonate;

[0072] 3 parts of barium sulfate;

[0073] 10 parts of silicon dioxide;

[0074] Components and parts by weight of the auxiliary agent are:

[0075] Dispersant 0.9 parts;

[0076] 1.1 parts of wetting agent;

[0077] 1.2 parts of defoamer;

[0078] Leveling agent 0.8 parts

[0079] 1 part of film-forming aid.

[0080]

Embodiment 3

[0082] A kind of black solar heat reflection cooling paint is characterized in that: it is prepared from the following raw materials according to weight percentage:

[0083] Acrylic emulsion 45 parts;

[0084] 3 parts of black functional pigment;

[0085] 0.5 part of decolorizing pigment;

[0086] Body pigment 20 parts;

[0087] 3 parts of auxiliary agent;

[0088] 5 parts of water.

[0089] The components and parts by weight ratio of the extender pigment are:

[0090] 11 parts of talcum powder;

[0091] 1.5 parts of heavy calcium carbonate;

[0092] 1.5 parts of barium sulfate;

[0093] 6 parts of silicon dioxide;

[0094] Components and parts by weight of the auxiliary agent are:

[0095] 0.5 parts of dispersant;

[0096] 0.7 parts of wetting agent;

[0097] 0.6 part of defoamer;

[0098] Leveling agent 0.7 parts;

[0099] 0.5 parts of film-forming aids.

[0100] Among them, in the three embodiments, the proportions of the various additive components can be fle...

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Abstract

The invention relates to a black solar heat reflective cooling coating and a preparation method thereof. By integrating two cooling mechanisms of reflection and radiation and adopting a waterborne acrylic emulsion as a film forming base material, the coating is good in anti-aging performance, long in outdoor service life and non-toxic and environmentally friendly, has excellent stain resistance, alkaline resistance and water resistance and has a good adhesive force to base materials such as concrete, metals, woods and glass. By adding a black functional pigment which has a strong near infrared reflection or transmission performance supplemented by various extender pigments and auxiliaries, the coating is simple in preparation, low in cost and environmentally friendly. Compared with common black coatings, the black solar heat reflective cooling coating has a better near infrared reflection or transmission performance, so that the coating can be used for reducing surface and inner temperatures of coated objects such as concrete, metals, woods and foam plastic in summer. The coating can be widely applied to roofs of buildings and has an ideal energy-saving and cooling effect while has a beautiful effect.

Description

technical field [0001] The invention relates to a black solar heat reflection cooling paint and a preparation method thereof, in particular to a black solar heat reflection cooling paint with water-based acrylic emulsion as a film-forming base material and a preparation method thereof. Background technique [0002] Sunlight is an electromagnetic wave, mainly distributed in the three regions of ultraviolet light, visible light and near infrared. Ultraviolet light, visible light, and near-infrared light account for approximately 5%, 45%, and 50% of solar energy, respectively. Excellent white solar heat reflective cooling paint can reflect more than 90% of visible light and about 90% of near infrared. Therefore, the white solar heat reflective cooling coating has high solar heat reflectivity, high heat generation rate and low absorption rate, and has excellent cooling performance. The white solar heat reflective cooling paint is used on the external walls, which can greatly r...

Claims

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Application Information

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