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A kind of transparent cooling paint and preparation method thereof

A coating and transparent technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of reduced thermal insulation efficiency, inability to cool down, high energy consumption of air conditioners, etc., to achieve increased cooling effect, thermal insulation effect, application scenarios wide effect

Active Publication Date: 2021-12-14
NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Air conditioning consumes a lot of energy
Various insulating glass and coatings have also been vigorously developed; US Patent US5518810 describes a coating formed by dispersing tin-doped indium tin oxide powder in inorganic or organic polymers, which is transparent in visible light and can absorb wavelengths above 1000nm Near-infrared light, so as to achieve the purpose of heat insulation; almost all transparent heat-insulation coatings use nano-antimony tin oxide or expensive indium tin oxide; The solar energy has a higher proportion in this band
[0003] Most of the traditional transparent heat-insulating coatings simply absorb infrared rays, which will cause self-heating and secondary heat conduction, which reduces the heat insulation efficiency; the self-emissivity is low in the infrared band of the atmospheric window, and it is impossible to cool itself through radiation. If the coating temperature is too high, it may also cause cracking and affect the service life of the coating

Method used

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  • A kind of transparent cooling paint and preparation method thereof

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preparation example Construction

[0035] A preparation method for a transparent cooling paint, comprising the following steps:

[0036] Step 1: each component is weighed according to specific gravity;

[0037] Step 2: Add distilled water, anionic polymer dispersant, acrylic acid sodium salt dispersant, water-based silane coupling agent KH450 and 70% by weight polyether siloxane copolymer at a stirring speed of 300r / min-400r / min;

[0038] Step 3: Continue to add nano-cesium tungsten bronze, nano-silicon dioxide and nano-cesium tungsten bronze in step 2, stir evenly, enter the sand mill and grind for 1 hour to form mixture A;

[0039] Step 4: Add distilled water, thickener, and antifreeze to the water-based polyurethane resin under stirring at 300r / min-400r / min, and disperse evenly to form mixture B;

[0040] Step 5: Mix mixture A and mixture B at a stirring speed of 400r / min-600r / min, add micron silicon dioxide and the remaining 30% by weight of defoamer, and disperse evenly to obtain a transparent cooling coa...

Embodiment 1

[0043] 80 parts by weight of water-based polyurethane resin, 0.3 parts by weight of anionic polymer dispersant, 0.3 parts by weight of sodium acrylic acid dispersant, 0.5 parts by weight of polyether siloxane copolymer, 0.5 parts by weight of associative polyurethane thickener, 2 Nano cesium tungsten bronze in parts by weight, micro silicon dioxide in 0.2 parts by weight, nano silicon dioxide in 0.1 parts by weight, water-based silane coupling agent KH450 in 0.2 parts by weight, distilled water in 8 parts by weight.

[0044] Step 1: each component is weighed according to specific gravity;

[0045] Step 2: Add distilled water, anionic polymer dispersant, acrylic acid sodium salt dispersant, water-based silane coupling agent KH450 and 70% by weight polyether siloxane copolymer at a stirring speed of 350r / min;

[0046] Step 3: Continue to add nano-cesium tungsten bronze and nano-silica in step 2, stir evenly, enter the sand mill and grind for 1 hour to form mixture A;

[0047] S...

Embodiment 2

[0050]82 parts by weight of water-based polyurethane resin, 0.4 parts by weight of anionic polymer dispersant, 0.4 part by weight of acrylic acid sodium salt dispersant, 0.7 parts by weight of polyether siloxane copolymer, 0.9 parts by weight of associative polyurethane thickener, 4 parts by weight Nano cesium tungsten bronze in parts by weight, micro silicon dioxide in 0.5 parts by weight, nano silicon dioxide in 0.5 parts by weight, water-based silane coupling agent KH450 in 0.3 parts by weight, distilled water in 10 parts by weight.

[0051] Step 1: each component is weighed according to specific gravity;

[0052] Step 2: Add distilled water, anionic polymer dispersant, acrylic acid sodium salt dispersant, water-based silane coupling agent KH450 and 70% by weight polyether siloxane copolymer at a stirring speed of 300r / min;

[0053] Step 3: Continue to add nano-cesium tungsten bronze and nano-silica in step 2, stir evenly, enter the sand mill and grind for 1 hour to form mi...

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Abstract

A transparent cooling paint, comprising: 80-85 parts by weight of waterborne polyurethane resin, 0.3-0.5 parts by weight of the first dispersant, 0.3-0.5 parts by weight of the second dispersant, 0.5-1.0 parts by weight of the defoamer, 0.5 parts by weight -2 parts by weight of thickener, 2-6 parts by weight of nano cesium tungsten bronze, 0.2-1 parts by weight of micron silica, 0.1-2 parts by weight of nano-silica, 0.2-0.5 parts by weight of coupling agent, 8-18 parts by weight of distilled water. Compared with the prior art, the beneficial effect of the present invention is: nano-cesium tungsten bronze particles are added to the coating of the present invention, which is lower in cost than traditional thermal insulation coatings ATO and ITO, and has a better thermal insulation effect; The coating of silicon oxide and glass polymer hybrid metamaterials increases the infrared emission of the atmospheric window 8μm-13μm under the condition that the haze of visible light has little influence, and increases the cooling effect.

Description

technical field [0001] The invention relates to the field of cooling paints, in particular to a transparent cooling paint with low infrared transmission and high far-infrared window emission. Background technique [0002] With the intensification of energy consumption, global warming is serious. Air conditioning consumes a lot of energy. Various insulating glass and coatings have also been vigorously developed; US Patent US5518810 describes a coating formed by dispersing tin-doped indium tin oxide powder in inorganic or organic polymers, which is transparent in visible light and can absorb wavelengths above 1000nm Near-infrared light, so as to achieve the purpose of heat insulation; almost all transparent heat-insulation coatings use nano-antimony tin oxide or expensive indium tin oxide; The solar energy has a higher proportion in this band. [0003] Most of the traditional transparent heat-insulating coatings simply absorb infrared rays, which will cause self-heating and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/61
CPCC09D175/04C09D7/61C09D7/67C09D7/69C08K2201/011C08K3/36C08K3/08
Inventor 杨宇龙陈孝行黄锦岳万容兵王明辉其他发明人请求不公开姓名
Owner NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD