Sunlight controlled coating solution in low radiation, preparation method and application

A technology of sunlight control and low radiation, applied in coatings, epoxy coatings, etc., can solve the problems of high toxicity, no mention of ultraviolet light control, no mention of it, etc.

Inactive Publication Date: 2005-11-16
长春迪高实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a relatively easy-to-operate and low-cost method to prepare solar control low-emissivity coatings by solution coating, but the dispersion medium of the solution is an organic solvent, and in its examples all use toluene, which is very toxic and carcinogenic , and requires UV curing, it is only suitable for certain organic film substrates, and it does not mention that it can be directly coated on glass, which limits the application of this method
[0012] The above documents or the combination of documents do

Method used

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  • Sunlight controlled coating solution in low radiation, preparation method and application
  • Sunlight controlled coating solution in low radiation, preparation method and application
  • Sunlight controlled coating solution in low radiation, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Under stirring, 80 grams of silicone-modified acrylic emulsions are added to the water slurry containing 100 grams of AZO (containing AZO 30wt%, the dispersant is water: the volume ratio of isopropanol is 2: 1, the average particle size of AZO nanoparticles 20nm), ultraviolet absorber UV-5316 grams, FC-432g, PVA (M average molecular weight 20000) 2 grams, mix uniformly, obtain sunlight control low radiation coating solution.

[0059] Apply the solution to a clean glass surface with a cotton swab, leave it at room temperature for 10 minutes, and then treat it at 150 degrees Celsius for 20 minutes for solar control low-e glass. Apply the solution on the PET film by roller coating, dry at 80°C for 1 hour, and stick it on the windows of automobiles and ships through pressure-sensitive adhesive, as an anti-ultraviolet and solar control low-emissivity film.

Embodiment 2

[0061] Preparation of solution A2:

[0062] In a container equipped with a stirring device, add 100 grams of 3-glycidyl etheroxypropyl trimethoxysilane, 50 grams of isopropanol, and add dropwise a mixture of 50 grams of water and 10 grams of 10 wt% hydrochloric acid under stirring. solution, stirred for 1 hour, added 2 g of 2-ethyl-4 methylimidazole, and stirred thoroughly. The silane coupling agent hydrolyzate-solution A2 was obtained for use.

[0063] Preparation of solution B2:

[0064] Add 230 grams of solution A into the water slurry containing 50 grams of ATO (containing ATO 20wt%, dispersant is water: isopropanol volume ratio is 2: 1, and the average particle size of ATO nanoparticles is 20nm), then add polyurethane emulsion Baybond PU 400S 50 grams, UV absorber UVB-45 grams, TritonX-1005 grams, mix well. Solar control low-E coating solution B2 was obtained.

[0065] Apply the solution B2 to the clean glass surface and the PMMA surface with a cotton swab, and then t...

Embodiment 3

[0067] Prepare solution A3:

[0068] In a container equipped with a stirring device, add 30 grams of ethyl orthosilicate, 50 grams of vinyltrimethoxysilane, and 50 grams of ethanol, and add dropwise a mixed solution of 50 grams of water and 10 grams of 10 wt% nitric acid under stirring. After dropping, add 0.5 g of FC-129 (3M product) and continue to stir for 1 hour to obtain silane coupling agent hydrolyzate-solution A3 for use.

[0069] Prepare solution B3:

[0070] Nano-TiO 2 Water emulsion (containing TiO 2 30wt%, the average particle diameter is 20 nanometers, 50 grams of Zhongke Nano Technology Engineering Center Co., Ltd., join 25 grams of solution A1 and 10 minutes of propylene glycol, fully stir to obtain the ultraviolet absorber slurry-solution B3.

[0071] Prepare solution C3:

[0072] In reactor, add successively ITO water slurry (containing ITO 25wt%, dispersant is water: ethanol volume ratio is 1: 1, and the average particle size of ITO nanoparticle is 40nm)...

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Abstract

A low-radiation aqueous solution able to be coated on the surface of glass for controlling sunlight contains at least one kind of metal oxide doped nanoparticles, high-molecular filming material, and dispersing medium chosen from water, the mixture of water and alcohol, and the mixture of water, alcohol and ester.

Description

technical field [0001] The invention relates to a composition of an aqueous solution system and a method for preparing a solar control low-radiation coating with the solution. The solution system constituting the coating contains at least one nanometer particle doped with metal oxide and a polymer film-forming component. Background technique [0002] Solar control coatings or glazing are coatings or glazing that provide some control over the transmission of sunlight. Low-emissivity coating or glass refers to coating or glass with high reflectance to far infrared, and here also includes coating and glass with blocking effect on heat radiation. [0003] 98% of the solar energy projected on the surface of the earth has a wavelength in the range of 0.3-2.5 μm, which can be divided into three parts according to its wavelength, namely ultraviolet light, visible light and infrared light. Ultraviolet light (accounting for 3%) is invisible light with a wavel...

Claims

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Application Information

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IPC IPC(8): C09D163/00
Inventor 曹新宇江雷
Owner 长春迪高实业有限公司
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