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Aqueous contamination resistant heat reflection phase change insulating paint and its preparing process

A heat-insulating coating and stain-resistant technology, applied in the direction of reflection/signal coatings, fire-resistant coatings, coatings, etc., can solve the problems of application restrictions, monotonous and single color of urban exterior walls, and achieve enhanced heat-resistant effects and reliable anti-corrosion Thermal insulation effect to ensure long-term reliable effect

Inactive Publication Date: 2009-07-15
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply using reflective heat insulation is relatively simple
In addition, a single color of white will also make the color of the city's outer walls monotonous, which is subject to certain restrictions in application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 High reflection, high emission thermal insulation coating

[0045] Highly reflective, highly emissive thermal insulation coating formulations

[0046] Component Content / g Component Content / g

[0047] Deionized water 20-30 Dispersant 2

[0048] Rutile titanium dioxide 10-12 Defoamer 1

[0049] Ultra-fine aluminum silicate 5-10 Anti-mold and fungicide 0.1

[0050] Far-infrared ceramic powder 10-13 Thickener 1.5

[0051] Silicone acrylic emulsion 25-35 Coalescing agent 1.5

[0052] It has been measured that its reflectance of visible light reaches 95%, the reflectivity of full band reaches 86.5%, the emissivity of 3-5 μm is 0.93, and the emissivity of 8-13.5 μm is 0.94%. 5 cycles, the stain resistance rate is 10%.

[0053] The reflective surface coating prepared above is combined with the heat-insulating primer to form a coating system, and the temperature of the outer surface can be reduced by 17°C, and the temperature of the back can be reduced by 11°C.

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Abstract

The invention relates to a water-base soil resistant heat-reflecting phase-changing thermal insulating coating system and a preparation method thereof. The coating system is composed of a reflected radiation top coat and a phase-changing thermal insulating primary coat. The top coat mainly comprises a film forming matter, a heat-reflecting paint, an infrared-emitting padding and hollow glass microballoons. The visible light reflectivity is 95%, the all-band reflectivity is 87%, the reflectivity of 3 to 5 microns is 0.92, and the reflectivity of 8 to 13.5 microns is 0.93%. In five times of cycle, the soil resistance is 10%. The primary coat is mainly composed of a film forming matter, phase-changing microballoons, hollow glass microballoons and expanded perlite. The primary coat is 3mm+ in thickness, and the top coat is 60 to 80 microns in thickness; when the temperature of the thermal surface reduces 15 to 20 DEG C, the temperature of the back surface reduces 8 to 15 DEG C.

Description

technical field [0001] The invention relates to the technical field of coatings, and relates to a water-based stain-resistant heat-reflecting heat-insulating coating used for external equipment such as building exterior walls and oil and gas storage tanks and a preparation method thereof. Background technique [0002] The earth is irradiated by the sun at 1.765×10 per second 17 J energy reaches the earth and brings light and heat to mankind. But the strong radiation in summer also brings adverse effects to people's production and life. Equipment such as air conditioners, air conditioners, spray cooling and electric fans used to cool buildings and outdoor equipment consume a lot of energy. [0003] At present, the vast majority of buildings in our country are high-energy non-energy-saving buildings, and most of the existing 40 billion square meters of buildings have not reached energy-saving standards. At present, there are mainly the following methods to transform existin...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D127/12C09D133/00C09D125/14C09D5/18C09D5/33
Inventor 郑天亮童晓晨邹靖华
Owner BEIHANG UNIV
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