Nano coating with photochromic and sunlight control characteristics, its preparing method and use

A sunlight control and nano-coating technology, which is applied in the direction of multi-color effect coatings, polyester coatings, epoxy resin coatings, etc., can solve the problem of not mentioning the composition of composite tin oxide, and achieve the effect of low preparation investment and cost

Inactive Publication Date: 2007-08-29
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the 1960s, it was discovered that silver halide and Cu + The glass has photochromic properties, and this discovery is applied in the preparation of various photochromic materials, such as US Patent US4049567 (1978); US Patent US4134853 (1979) discloses a silver-free photochromic The composition of the color-changing material is composed of titanium oxide, iron oxide and lead nitrate; U.S. Patent No. 4,556,605 (1985) discloses a photochromic material composed of silver halide, metal compound and organic photochromic material, which is used in The lens can improve its photochromic effect, but does not mention the composition of composite tin oxide; U.S. Patent US 5256337 (1993) discloses a kind of photochromic thin film, and wherein photochromic material is that nano-silver halide adds cobalt, chromium, Manganese, Magnesium and Rare Earths for enhanced photochromic properties

Method used

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  • Nano coating with photochromic and sunlight control characteristics, its preparing method and use
  • Nano coating with photochromic and sunlight control characteristics, its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] It is 1 kilogram of water dispersion system of the antimony-doped tin oxide (ATO) nanopowder of 5% that adding weight percentage concentration is housed in the reactor of stirring device, wherein the average particle diameter of ATO nanoparticle is 20 nanometers, under stirring again Add average particle diameter and be 1 kilogram of nano-silver aqueous solution (wherein the concentration of silver is 0.5 mg / kg) of 10 nanometers, after stirring for 30 minutes, get this solution 50 milliliters, under the rotating speed of 800 rev / mins of glue homogenizer, spin-coat on On the glass substrate, then obtain light blue glass with coating, the thickness of the coating is 5 microns, the transmittance of this glass in the visible light range (400-800 nanometers) is 54-67%, reduces sunlight ultraviolet ray simultaneously And infrared pass rate, has shielding effect, (curve a in accompanying drawing 1).

[0035] After irradiating the glass with ultraviolet light with a wavelength ...

Embodiment 2

[0037]The Chinese Patent Publication No. is CN1696221A to prepare antimony-doped tin oxide (ATO) slurry and fluorine-doped tin oxide (FTO) slurry, and their weight percentage concentrations are respectively 20% and 5%, and the average particle diameter is respectively 30 nanometers and 50 nanometers, 0.5 kg of ATO slurry and 0.5 kg of FTO slurry are added to a container equipped with a stirring device, adding 1 kg of polyvinyl alcohol aqueous solution and 50 grams of isopropanol with a concentration of 2.5% by weight, and then adding ammonia , make the pH of the solution be 9, then add 1 kilogram of silver nitrate aqueous solution with a weight percent concentration of 0.5% and 0.5 kilogram of nano silver aqueous solution with a concentration of 0.5 mg / kg, wherein the average particle diameter of nano silver is 40 nanometers. After stirring evenly, the solution was sprayed onto a 3 mm thick glass sheet measuring 1.2 m x 1.2 m to obtain glass with a light gray coating. The coat...

Embodiment 3

[0039] 1 kilogram of weight percent concentration is that 10% fluorine-doped tin oxide (FTO) slurry is added in the container that is equipped with stirring, and the average particle diameter of FTO nanoparticle is 100 nanometers, and adding weight percent concentration is 2.5% polyurethane aqueous emulsion 1 kilogram and 50 grams of isopropanol, adding weight percent concentration again is 1 kilogram of silver sulfate aqueous solution of 0.5% and concentration is 0.5 kilogram of nano silver aqueous solution of 0.02 mg / kg, wherein the average particle diameter of nano silver is 50 nanometers. After stirring evenly, the solution was brushed onto a transparent polymethyl methacrylate substrate to obtain a lens with a light gray coating, and the thickness of the coating was 3 microns. It can shield 45% of sunlight infrared, and the transmittance at 550 nanometers of visible light is 81%. If the coating is irradiated with ultraviolet light at 365-450 nanometers for 5 minutes, its t...

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Abstract

The invention relates to nanometer coating material that has photochromism and sunshine controlled capability, and the manufacturing method and the application. It includes the following steps: adding aqueous solution of adulterated stannic oxide tin oxide nanometer to container, whisking and adding the solution of IB series transition metal nanometer partical and/ or adding the compound of IB series metal to gain the aqueous solution nanometer coating with photochromism and sunshine controlled capability. The mol ratio of doped chemical in stannic oxide and the tin is 0.1-20:100. The mol ratio of stannic oxide and the IB series metal element is 200:1-5:1. The invention could be coated onto surface of glass or organic material.

Description

technical field [0001] The invention belongs to the field of nano coatings, in particular to nano coatings with photochromic and sunlight control properties, a preparation method of the nano coatings and applications for glass coatings and the like. Background technique [0002] Solar control glass refers to glass that has a certain control effect on the transmission of sunlight. Ordinary glass has no selectivity for the transmission of sunlight, while solar control glass has an acceptable transmittance for visible light, and has shielding properties for sunlight ultraviolet or / and sunlight infrared. Solar control glass is generally prepared by the methods of magnetron sputtering, CVD and thermal spraying. For example, Chinese Patent Publication No. CN1263874A discloses a kind of anti-sunlight band coated glass, which is prepared by thermal spraying; No. CN1350990A discloses a solar control coated glass, which needs to be realized by thermal spraying or PVD or CVD. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/29C09D133/00C09D175/04C09D163/00C09D167/00B05D5/06
Inventor 曹新宇韩勇江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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