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Faint yellow refrigeration coating as well as preparation method and application thereof

A technology of light yellow and yellow pigments, applied in the field of light yellow refrigeration coatings and its preparation, can solve the problems of inability to achieve refrigeration purposes, decrease in visible light spectrum reflectance, decrease in solar reflectance, etc., and achieve obvious passive energy saving effects and significant cooling effects , the effect of eliminating light pollution

Pending Publication Date: 2021-04-13
CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Absorbing a certain band of visible light will inevitably lead to a decrease in the reflectance of the visible light spectrum, and at the same time absorb a part of the near-infrared, resulting in a decrease in the overall solar reflectance, and cannot achieve the high solar reflectance required for the cooling purpose of the surface temperature lower than the surrounding ambient temperature (not less than 0.94)

Method used

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  • Faint yellow refrigeration coating as well as preparation method and application thereof
  • Faint yellow refrigeration coating as well as preparation method and application thereof
  • Faint yellow refrigeration coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In the light yellow refrigeration paint of this embodiment, styrene-acrylic emulsion, purple light fluorescent powder, sky blue fluorescent powder, rutile titanium dioxide, titanium nickel yellow, water, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, polyoxyethylene The mass percent contents of ether defoamer, polyurethane thickening and leveling agent, and ester film-forming aids are respectively: 40%, 5%, 14%, 25%, 1%, 10%, 1%, 1%, 1% %, 1%, 1%.

[0034]Add styrene-acrylic emulsion, purple fluorescent powder, sky blue fluorescent powder, rutile titanium dioxide, titanium nickel yellow, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, polyether defoamer and water with grinding After mixing in a container of beads or glass beads, stir and disperse at a speed of 1100 rpm for 30 minutes, then press the dispersed mixture into a grinding tank for 30 minutes and grind it for 30 minutes, and...

Embodiment 2

[0040] In the light yellow refrigeration paint of this embodiment, styrene-acrylic emulsion, purple light fluorescent powder, blue-green fluorescent powder, rutile titanium dioxide, titanium nickel yellow, water, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, The mass percent contents of polyether defoamer, polyurethane thickening and leveling agent, and ester film-forming aids are respectively: 45%, 3%, 12%, 26%, 2%, 10%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%.

[0041] Add styrene-acrylic emulsion, purple fluorescent powder, blue-green fluorescent powder, rutile titanium dioxide, titanium nickel yellow, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, polyether defoamer and water After mixing in a container of grinding beads or glass beads, stir at high speed (1200 rpm) and disperse for 30 minutes, then press the dispersed mixture into the grinding tank for 30 minutes and grind for 30 minutes, and ad...

Embodiment 3

[0047] In the light yellow refrigeration paint of this embodiment, styrene-acrylic emulsion, purple light fluorescent powder, yellow-green fluorescent powder, rutile titanium dioxide, titanium nickel yellow, water, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, The mass percentage contents of polyether defoamer, non-ionic thickening and leveling agent, and ester film-forming aids are respectively: 42%, 4%, 13%, 28%, 1%, 10%, 0.4%, 0.4% %, 0.4%, 0.4%, 0.4%.

[0048] Add styrene-acrylic emulsion, purple fluorescent powder, yellow-green fluorescent powder, rutile titanium dioxide, titanium nickel yellow, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, polyether defoamer and water After mixing in a container of grinding beads or glass beads, stir at a high speed (stirring rate 1000 rpm) and disperse for 30 minutes, then press the dispersed mixture into the grinding jar for grinding for 30 minute...

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Abstract

The invention provides a faint yellow refrigeration coating, and belongs to the technical field of passive refrigeration. The coating comprises the following components in percentage by mass: 35-45% of styrene-acrylic emulsion, 3-5% of a purple photoluminescent pigment, 12-18% of other photoluminescent pigments, 25-30% of titanium dioxide, 1-2% of yellow pigment, 10-15% of water and 2-5% of auxiliaries. The surface temperature of the refrigeration coating is lower than the ambient temperature under direct sunlight. According to the refrigeration coating disclosed by the invention, a complementary color photon compensation method and a fluorescent photon compensation method are utilized, and the purple photoluminescence pigment and the other yellow-green photoluminescence pigments are added into yellow finish paint, so that the spectral reflectivity of the coating in a solar spectrum ultraviolet region and a visible light region is improved. Meanwhile, the titanium dioxide is added, and the hyperspectral reflectivity of the coating in a near-infrared region is maintained, so that the total effective solar reflectivity of the surface of the coating is greater than 0.95, and the total infrared radiance is greater than 0.92, so that the lowest requirement of a passive refrigeration technology that the surface temperature is lower than the ambient air temperature under direct sunlight irradiation on the condition that the total solar reflectivity of the surface is not lower than 0.94 is fully met.

Description

technical field [0001] The invention belongs to the technical field of passive refrigeration, in particular to a light yellow refrigeration coating and its preparation method and application. Background technique [0002] As a passive cooling technology, solar heat reflective insulation coatings have been extensively researched and applied since the 1970s. However, subject to the current situation that the solar reflectance is lower than 90%, although the solar heat reflective thermal insulation coating has an obvious cooling effect, under direct sunlight, the surface temperature of the coating is higher than the ambient temperature, and it does not have the effect of cooling. In order to make the surface temperature of the coating lower than the surrounding ambient air temperature and achieve the effect of cooling, the solar heat absorbed by the coating surface must be less than the heat radiated by the coating surface in the form of infrared. [0003] In sunny weather in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D5/22C09D5/33C09D7/61
CPCC08K2003/2241C08K2003/3027C08L2205/035C09D5/004C09D5/22C09D125/14C09D7/61C08K3/22C08K3/30C08K3/24
Inventor 冯雅刘联华周建兵张卫东张红强秦杰李艳稳窦枚蔡元柱
Owner CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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