Light orange refrigeration coating with double-layer structure as well as preparation method and application thereof

A double-layer structure, orange technology, applied in luminescent coatings, reflective/signal coatings, coatings, etc., can solve the problems of complex preparation of passive refrigeration coatings, high preparation costs, poor refrigeration effect, etc., and achieve significant cooling effect and energy saving. effect of effect

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

[0006] The purpose of the present invention is to provide a double-layer structure light orange refrigeration coating and its preparation method and application. The coating surface temperature of the refrigeration coating of the present invention is significantly lower than the ambient temperature under direct sunlight, which can solve the problem of passive refrigeration coating preparation in the field of building energy conservation. Technical problems such as complexity, poor refrigeration effect, and high preparation cost

Method used

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  • Light orange refrigeration coating with double-layer structure as well as preparation method and application thereof
  • Light orange refrigeration coating with double-layer structure as well as preparation method and application thereof
  • Light orange refrigeration coating with double-layer structure as well as preparation method and application thereof

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preparation example Construction

[0035] Preparation of white fluorescent and radiant refrigeration primer: mix hydrophobic styrene-acrylic emulsion, sky blue luminous pigment, calcium stearate, talcum powder, titanium dioxide, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, polyether After the defoamer and water are mixed, stir and disperse at a high speed of 1000 rpm for 100 minutes, and add urethane thickening and leveling agent and ester film-forming aid to the solution after stirring and dispersing, and disperse evenly;

[0036]Preparation of light orange topcoat: styrene-acrylic emulsion, titanium dioxide, photoluminescence pigment, near-infrared transmission orange pigment, polycarboxylate ammonium salt dispersant, nonylphenol polyoxyethylene ether wetting agent, polyether defoamer After mixing with water, stir and disperse at a high speed of 900 rpm for 30 minutes, press the dispersed mixture into a grinding jar for grinding for 30 minutes, add polyurethane thi...

Embodiment 1-3

[0037] The concrete detection method of embodiment 1-3 is as follows:

[0038] The prepared white fluorescent and radiant cooling primer and light orange topcoat were coated by roller coating on the roof and wall of a model house of 2 meters long x 2 meters wide x 2.2 meters high built in precast concrete for outdoor experiments . Among them, the dry film thickness of the white fluorescent and radiant cooling primer is greater than or equal to 300 microns, and the dry film thickness of the light orange topcoat is less than or equal to 50 microns.

[0039] When measuring the cooling effect, the thermal resistance for measuring the roof surface temperature is installed in the center of the roof surface, the upper surface of the temperature measuring element is flush with the roof surface, and then the primer and finish paint are applied. The thermal resistor for measuring the indoor temperature is hung in the center of the house, and the thermal resistor for measuring the ambie...

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Abstract

The invention provides a light orange refrigeration coating with a double-layer structure, and belongs to the technical field of passive refrigeration. The coating comprises a white fluorescence and radiation refrigeration primer and a light orange finishing coat; the light orange finishing coat is prepared from 35 to 45 parts by mass of a styrene-acrylic emulsion, 12 to 18 parts by mass of a photoluminescence pigment, 25 to 30 parts by mass of titanium dioxide, 1 to 2 parts by mass of a near-infrared transmission orange pigment, 10 to 15 parts by mass of water and 2 to 5 parts by mass of an auxiliary agent; and the surface temperature of the refrigeration coating is obviously lower than the ambient air temperature under direct sunlight irradiation. The invention further provides a preparation method and application of the refrigeration coating. The refrigeration coating with the double-layer structure is composed of the white primer and the light orange finishing coat, the white primer has two passive refrigeration mechanisms including broad-spectrum radiation refrigeration and fluorescence refrigeration, the light orange finishing coat integrates three refrigeration mechanisms: spectral radiation refrigeration, fluorescence refrigeration and background reflection, and when the refrigeration coating is applied to the surface of a building, the surface temperature of the coating is obviously lower than the surrounding environment temperature under direct sunlight in the morning, so that the refrigerating effect is remarkable.

Description

technical field [0001] The invention belongs to the technical field of passive refrigeration, in particular to a double-layer light orange refrigeration coating and its preparation method and application. Background technique [0002] Solar heat reflective and thermal insulation coatings have been widely researched and applied since the 1970s. However, due to the current situation that the solar reflectance is usually lower than 90%, although the solar heat reflective heat insulation coating has an obvious cooling effect, its surface temperature is higher than the surrounding ambient temperature, and it does not have the effect of cooling. [0003] The objective existence of convective heat transfer and conduction heat transfer makes the phenomenon that the surface temperature of the object under direct sunlight is lower than the ambient temperature seems to be contrary to conventional cognition, but in fact, it is precisely because the surface temperature of the object is l...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D5/22C09D7/61C09D5/33C09D7/63
CPCC09D125/14C09D5/22C09D7/61C09D5/004C09D5/002C09D7/63C08K2003/2241C08K3/22C08K3/34C08K5/09C08K13/02
Inventor 张卫东冯雅刘联华周建兵张红强李艳稳蔡元柱秦杰窦枚
Owner CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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