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Preparation method for high-performance transparent glass heat-insulating coating

A technology of transparent glass and thermal insulation coatings, applied in polyurea/polyurethane coatings, coatings, etc.

Active Publication Date: 2012-07-11
上海沪正实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If only a single ATO, ITO is used as the heat insulation medium, or only the nano-slurry obtained by mixing and dispersing ATO and ITO, the glass heat insulation coating made requires a limit of visible light transmittance greater than 70%, and a film thickness of 3um. Under the circumstances, the IR blocking rate of light waves around 900nm cannot be greater than 70%, which is the problem of the use of some nanomaterials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0016] Embodiment 1.1 (preparation of blue nano-WO with primary particle size not greater than 40nm 3 powder)

[0017] Get respectively successively 1. 50 parts by weight content is the tungstic acid of 99.9% (H 2 WO 4 ); get (2) 5 parts by weight of indium hydroxide In(OH) with a content of 99.9% 3 powder; take ③45 parts by weight of a mixed solvent of methanol and deionized water 1:1, pour ①②③ into the prepared high-speed sand mill disperser in turn, adjust the speed to 12000 rpm, and after 30 minutes, use N, N-dimethylethanolamine to adjust the pH value of the mixed colloid in the high-speed sand mill disperser, and start high-speed dispersion after the pH value is controlled to 5. After continuous dispersion for 4 hours, take out the mixed colloid in the high-speed sand mill disperser and pour it into Al 2 o 3 Put the crucible into the drying box for drying, adjust the temperature to 85 degrees and dry for 5 hours, then increase the temperature to 160 degrees for 4 ho...

Embodiment 12

[0019] ☆Preparation of water-based high-performance thermal insulation medium (hereinafter referred to as component A of mixed nano-slurry)

[0020] Weigh ① the blue nano-WO with a primary particle size not greater than 40nm obtained in Example 1.1 3 Powder 1300g;

[0021] Weigh 1300g of blue nano-ATO powder with a primary particle size not greater than 10nm;

[0022] Weigh 1300g of blue nano-ITO powder with a primary particle size not greater than 20nm;

[0023] Weigh 4900g of deionized water;

[0024] Weigh 200 g of N, N-dimethylethanolamine (5) aqueous system dispersant.

[0025] Pour ①②③④⑤ into the dispersing barrel of a planetary rapid disperser equipped with zirconium balls with a diameter of 0.3mm in turn, adjust the rotating speed to 12000 rpm, open the cover of the dispersing barrel after continuous dispersion for 16 hours, and take out the nano-slurry of the mixed colloid. After filtering with a 200-mesh filter cloth, the mixed nano slurry A component with a soli...

Embodiment 2

[0033] Embodiment 2 (preparation of water-based high-performance glass thermal insulation coating)

[0034] Take by weighing the mixed nano-slurry A component 20g that embodiment 1.2 prepares;

[0035] Weigh 80g of water-based transparent polyurethane resin;

[0036] Pour the mixed nano-slurry component A and water-based transparent polyurethane resin into a container, stir for 20 minutes, and filter with a 200-mesh filter cloth to obtain a water-based high-performance glass heat-insulating coating.

[0037] Optical performance test: Use a coating rod to brush onto the glass surface with a thickness of 5mm. When the dry film thickness is adjusted to 3um during coating, the results measured with a spectrometer are as follows: IR rejection rate 91%; UV rejection rate 80%; VLT transmission rate The pass rate is 76%.

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PUM

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Abstract

The invention discloses a preparation method for a high-performance transparent glass heat-insulating coating, comprising the following steps of: preparing a novel high-performance transparent mixed nano-slurry mixed and dispersed by blue WO3 (tungsten trioxide), ATO (antimony tin oxide) and ITO (indium tin oxide) at first, and then mixing, stirring and filtering by transparent polyurethane resinto obtain the transparent glass heat-insulating coating with high heat-insulating performance. The high-performance transparent glass heat-insulating coating prepared by the method disclosed by the invention has super-strong transparency, heat insulation and ultraviolet-preventing performance, and especially has very high heat-insulating performance in a near-infrared area ranging from 780 to 900nm; and the high-performance transparent glass heat-insulating coating can be widely applied to production for high-performance heat-insulating glass and high-performance heat-insulating window membrane, as well as has very important social and economic values.

Description

technical field [0001] The invention relates to a preparation method of a high-performance transparent glass heat-insulating paint. Background technique [0002] At present, there are many forms of transparent glass thermal insulation coatings produced at home and abroad, including water-based and solvent-based transparent glass thermal insulation coatings, but the thermal insulation media used are inseparable from ATO nano-slurries and ITO nano-slurries. Similar, except that there are differences in the amount of ATO and ITO nano-slurries added, and the resin systems used are different. Therefore, no matter what kind of formula combination of glass heat-insulating coatings, in the case of limiting the thickness of the coating, the optical The impact on performance cannot be greatly improved. This is due to the characteristics of the nano-insulation medium ATO and ITO materials used in the coating. If only a single ATO, ITO is used as the heat insulation medium, or only th...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12C09D5/00C03C17/32C03C17/23
Inventor 李佳怡李学成郑爱玉
Owner 上海沪正实业有限公司
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