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CN116694217B - Solar catalysis self-cleaning paint and preparation and application methods thereof - Google Patents

Solar catalysis self-cleaning paint and preparation and application methods thereof Download PDF

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Publication number
CN116694217B
CN116694217B CN202310805588.7A CN202310805588A CN116694217B CN 116694217 B CN116694217 B CN 116694217B CN 202310805588 A CN202310805588 A CN 202310805588A CN 116694217 B CN116694217 B CN 116694217B
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tio
nano
sio
hydrosol
self
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CN116694217A (en
Inventor
张发荣
曹宇奇
刘伟龙
梁庆松
王靖
刘炳光
李建生
赵金洋
武东蕾
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Tianjin Vocational Institute
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
    • B05D2203/35—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

The invention relates to a solar catalytic self-cleaning coating and a preparation method and an application method thereof, wherein the solar catalytic self-cleaning coating consists of waterborne polyurethane, nano SiO 2 hydrosol, nano TiO 2 hydrosol, nb 2O5 precursor, ammonium sulfate and deionized water. The nano SiO 2, nano TiO 2 and nano Nb 2O5 oxide in the coating are used as photocatalysis components of the coating matrix and anti-reflection components of the coating matrix. The aqueous polyurethane and the nano SiO 2 are used as film forming agents or film forming auxiliary agents and are stable in acidic aqueous solution. The chemical composition of the self-cleaning antireflection film of the composite oxide is SO 4 2‑/SiO2-TiO2-Nb2O5, the light transmittance is 93.6-94.6%, and the antireflection rate is 2-3%; hardness is 5-6H; the water contact angle is 4-8 degrees. In the invention, the nano SiO 2-TiO2-Nb2O5 composite oxide is subjected to in-situ sulfation, so that the sunlight catalytic activity of the formed photocatalytic film is improved by times, the antireflection performance of the coated glass is not adversely affected, and the method has industrial application prospect.

Description

Solar catalysis self-cleaning paint and preparation and application methods thereof
Technical Field
The invention relates to a solar catalytic self-cleaning coating and a preparation and application method thereof, belonging to the technical field of new materials.
Background
The energy crisis and environmental pollution are two major problems faced by human beings in the present age, and the solar catalysis method can effectively degrade organic pollutants and becomes an important way for solving the energy and environmental problems. The solar energy utilization rate is improved, and the design of a sunlight catalyst is a technical key.
The anatase nano TiO 2 is a photocatalytic material with highest photocatalytic efficiency, the refractive index is 2.55, and the maximum light transmittance of the single-layer TiO 2 coated glass is 89%. The main disadvantages of nano TiO 2 found after many years of commercial application are: (1) no visible light-induced luminescence catalytic effect; (2) Photocatalytic degradation of matrix organic materials requires coating treatment; (3) unsatisfactory and unstable photocatalytic performance; (4) high refractive index and high light reflectivity.
For example, street guardrails require periodic paint make-up, mainly because titanium dioxide or self-cleaning components in the paint absorb sunlight and pulverize the paint matrix. In use of the solar cell or the solar collector, the glass cover plate is gradually covered by dust and organic pollutants, so that the light transmittance of the glass is reduced, and the power generation or heat absorption efficiency is reduced by 10% -30%. The photocatalysis self-cleaning paint is a simple and easy measure for preventing the pollution of the hard surface.
In order to solve the problem of photocatalytic degradation of the organic matrix material by nano TiO 2, the nano SiO 2 is generally coated and then added into the coating as a photocatalytic material. To solve the problem of high refractive index of nano TiO 2, the invention patent of Nanshi corporation (CN 109665719B, 22-05-24) discloses that the problem of contradiction between light transmittance and self-cleaning effect is solved by reducing the doping amount of TiO 2. The invention patent (CN 109651863B, 2021-06-01) discloses that nano hollow titanium dioxide particles are introduced to prepare the solar anti-reflection coating with self-cleaning and anti-reflection functions.
The literature reports that sulfating nano TiO 2 can improve the photocatalytic performance by 2-10 times, and if the sulfating TiO 2 is selected to replace the common nano TiO 2, the self-cleaning of the solar glass can be realized with low dosage, thereby reducing the adverse effect on the anti-reflection performance of the glass. The nano TiO 2 only absorbs ultraviolet light, and if the nano TiO 2 is modified to absorb visible light to generate a photocatalysis effect, the photocatalysis efficiency is greatly improved.
Niobium oxide is a typical N-type semiconductor, has a band gap width of 3.4-4.0eV, is equivalent to that of TiO 2 and has the advantages of acid and alkali resistance and light corrosion resistance, has chemical and thermodynamic stability superior to that of TiO 2, and has great photocatalytic potential. Niobium oxide is a generic term for niobium oxides with different valence states, commonly referred to as Nb 2O5, the refractive index of which is 1.7-2.1, and the light transmittance of single-layer Nb 2O5 coated glass is 94%, and can replace nano TiO 2 as a photocatalytic material and a glass anti-reflection material, wherein the photocatalytic principle is similar to that of nano TiO 2, and organic pollutants are carbon dioxide and water through photo-generated hydroxyl radical oxidation degradation.
Chinese patent (CN 112371105A, 2021-02-19) discloses a niobium pentoxide/titanium dioxide composite photocatalyst, a preparation method and application thereof, and the prepared Nb 2O5-TiO2 composite photocatalyst has a forbidden band width of 2.07-2.45 eV and can be used as a photocatalyst in the field of nitric oxide purification. The Nb 2O5-TiO2 composite oxide can absorb visible light, has higher photocatalytic activity, and can overcome the defect of nano TiO 2.
Disclosure of Invention
The invention aims to provide a solar catalysis self-cleaning coating which consists of waterborne polyurethane, nano SiO 2 hydrosol, nano TiO 2 hydrosol, nano Nb 2O5 precursor, ammonium sulfate and deionized water, wherein the mass percentages of the components are as follows:
the nano SiO 2, the nano TiO 2 and the nano Nb 2O5 oxide in the coating are used as a photocatalysis component of the coating matrix and an antireflection component of the coating matrix; the aqueous polyurethane is used as a film forming agent or a film forming auxiliary agent and is stable in an acidic aqueous solution; oxalic acid is used as an acid-soluble complexing agent of nano TiO 2 and nano Nb 2O5 to promote the dissolution of nano TiO 2 and nano Nb 2O5; ammonium sulfate is used as sulfating agent of composite oxide, and the solar catalytic performance of the composite oxide can be improved after high-temperature treatment.
The aqueous polyurethane resin is a uniform emulsion formed by dispersing polyurethane in water, has the advantages of incombustibility, small smell, no pollution to environment, energy conservation, convenient operation and processing and the like, and is widely used as an adhesive and a coating. The polyurethane aqueous solution (particle size <1nm, transparent appearance), polyurethane aqueous dispersion (particle size=1-100 nm, semitransparent appearance) and polyurethane emulsion (particle size >100nm, white turbidity appearance) can be classified according to particle size and appearance. Depending on the diisocyanate selected, it can be classified into aromatic polyurethane and aliphatic polyurethane. One-component polyurethanes and two-component polyurethanes can be distinguished in the form of product packages. The synthesis process of the waterborne polyurethane can be divided into two stages, wherein the first stage is preliminary polymerization, and the oligomer diol, the chain extender, the waterborne monomer and the diisocyanate are gradually polymerized through a solution to generate a waterborne polyurethane prepolymer with the molecular weight of 1000 orders; the second stage is the dispersion of the prepolymer in water after neutralization.
The invention further aims to provide a preparation method of the solar catalysis self-cleaning paint, which comprises 5 parts of acidic polyurethane aqueous solution preparation, acidic nano SiO2 hydrosol preparation, nano TiO2 hydrosol preparation, composite photocatalyst preparation and photocatalytic self-cleaning paint preparation, and specifically comprises the following steps:
(1) Diluting a commercial aqueous polyurethane solution with the mass concentration of 40% -50% by using deionized water, and adjusting the pH value of the polyurethane aqueous solution to be 2-3 by using a saturated oxalic acid aqueous solution to obtain an aqueous polyurethane solution with the mass concentration of 5%; the aqueous polyurethane is a commercial aromatic and aliphatic single-component polyurethane aqueous solution or emulsion, and the molecular weight of the polymer is 2000-10000;
(2) Diluting commercial alkaline SiO 2 hydrosol with the mass concentration of 30-40%, and adjusting the pH value of the hydrosol to be 2-3 by using saturated oxalic acid aqueous solution to obtain acidic SiO 2 hydrosol with the mass concentration of 10% and the particle size of 10-50 nm;
(3) Dissolving titanyl sulfate in dilute sulfuric acid aqueous solution, and neutralizing with ammonia water to pH=8-10 to form hydrated TiO 2 white precipitate; dispersing the white precipitate in saturated oxalic acid aqueous solution, and controlling the molar ratio of TiO 2 to oxalic acid to be 1:0.6-1, heating and peptizing on a water bath at 60-80 ℃ to obtain nano TiO 2 hydrosol with mass concentration of 5%;
(4) An acidic nano SiO 2 hydrosol with the mass concentration of 10%, a nano TiO 2 hydrosol with the mass concentration of 5% and an niobium oxalate aqueous solution with the mass concentration of 5% are mixed according to the molar ratio of SiO 2：TiO2：Nb2O5 =1: 0.01-0.05:0.02-0.1, and the nano TiO 2-Nb2O5 is coated by nano SiO 2 to form nano SiO 2-TiO2-Nb2O5 composite photocatalyst hydrosol;
(5) Adding 5% aqueous polyurethane solution into the mixture, and controlling the feeding mass ratio of the aqueous polyurethane to the nano SiO 2 to be 0.2-1:1, adding deionized water to adjust the mass concentration of nano SiO 2 to 5%, and according to the molar ratio (Ti+Nb): s=1: and 0.2-1 of ammonium sulfate to obtain the photocatalysis self-cleaning coating.
The coating is suitable for coating inner and outer walls of buildings, stone decoration, road isolation guardrails, outdoor billboards, glassware and solar cell glass photocatalysis self-cleaning.
For the application of the photocatalysis self-cleaning coating taking polyurethane as a main film forming component, the proportion of the water-based polyurethane and the nano TiO 2-Nb2O5 in the coating needs to be increased. Since the heat treatment process is not carried out, the adhesion of the nano SiO 2 is lower and the polyurethane is relied on to adhere on the solid surface. The photocatalytic activity of the nano TiO 2-Nb2O5 is also lower, and the self-cleaning effect of solar catalysis can be achieved only by increasing the addition amount.
In addition, the curing process of the acidic polyurethane coating is longer, and the compounding of various nano oxides is slowly carried out, so that niobium oxalate is converted into Nb 2O5, and the Nb 2O5 and TiO 2 are compounded into a TiO 2-Nb2O5 sunlight catalyst; the sunlight catalyst coated by the nano SiO 2 can not degrade polyurethane matrix materials by photocatalysis, only degrades surface organic pollutants, and can prolong the service life of the coating.
For photocatalytic self-cleaning coating applications with nano SiO 2 as the main film forming component, polyurethane is only an auxiliary film former. The aqueous polyurethane has certain elasticity, improves the leveling property of the film after being compounded with the silica sol, and overcomes the defect of stress cracking of the film of the nano SiO 2 gel film in the drying process. The film layer is subjected to heat treatment, wherein organic components are almost completely thermally decomposed, and photocatalytic components in the film layer are rapidly compounded, so that the solar catalytic performance is greatly enhanced.
The invention further aims to provide an application method of the solar catalysis self-cleaning coating, which comprises the steps of preparing a composite oxide sol-gel film and preparing a composite oxide self-cleaning antireflection film in a part 2, wherein the specific steps are as follows:
(1) Coating the photocatalysis self-cleaning paint on the surface of the solar cell glass, wherein the thickness of a wet film is 1500-3000nm; drying at 150-200deg.C, and thermally decomposing organic matters in the film layer to form a nano SiO2-TiO2-Nb2O5 composite oxide gel film, wherein the thickness of the xerogel film is 100-200nm;
(2) Heat-treating solar cell coated glass with a single-sided nano SiO2-TiO2-Nb2O5 composite oxide gel film for 0.2-1h at 600-700 ℃, sintering on the solar cell coated glass, rapidly cooling by air and water to room temperature, SO that the solar cell coated glass is toughened, the impact resistance strength of the solar cell coated glass is improved, a self-cleaning antireflection film of SO42-/SiO2-TiO2-Nb2O5 composite oxide is formed on the solar cell glass, the light transmittance of the coated glass is 93.6-94.6%, and the antireflection rate is 2-3%; hardness is 5-6H; the water contact angle is 4-8 degrees.
When the nano SiO 2 is sintered at high temperature, the polyurethane film is degraded into CO 2 and nitrogen is volatilized, and SiO 2-TiO2-Nb2O5 in the gel film layer is mutually diffused, permeated and doped at high temperature to form a composite oxide film layer; sulfuric acid generated by thermal decomposition of the mixed ammonium sulfate is doped into the composite oxide to form a self-cleaning antireflection film of the composite oxide with the chemical composition of SO 4 2-/SiO2-TiO2-Nb2O5;
The invention has the following beneficial effects:
(1) Nb 2O5 has photocatalysis property, can efficiently absorb visible light when being compounded with high-activity TiO 2, and further is compounded with SiO 2 with high specific surface area, so that the formed nano SiO 2-TiO2-Nb2O5 composite oxide has higher photocatalysis activity;
(2) In the invention, the nano SiO 2-TiO2-Nb2O5 composite oxide is sulfated in situ, so that the sunlight catalytic activity of the formed photocatalytic film is improved by times;
(3) The SO 4 2-/SiO2-TiO2-Nb2O5 photocatalysis self-cleaning material has no adverse effect on the antireflection performance of coated glass, and has industrial application prospect.
The raw materials adopted in the invention, namely the waterborne polyurethane, the alkaline silicon dioxide, the titanyl sulfate, the oxalic acid, the niobium oxalate, the ammonia water, the oleic acid, the hexane, the methylene blue, the ammonium sulfate and the like are all commercial chemical reagents.
Detailed Description
Example 1
10G of a commercially available aqueous polyurethane solution with a mass concentration of 40% was diluted with deionized water, and the ph=2-3 of the aqueous polyurethane solution was adjusted with a saturated oxalic acid aqueous solution to obtain 80g of a 5% mass concentration aqueous polyurethane solution, and the polymer molecular weight was 4000. 100g of commercial alkaline SiO 2 hydrosol with the mass concentration of 40%, diluting with deionized water, and adjusting the pH value to be 2-3 by using a saturated oxalic acid aqueous solution to obtain 400g of acidic SiO 2 hydrosol with the mass concentration of 10% and the particle size of 10-50 nm. Dissolving 8g of titanyl sulfate in a dilute sulfuric acid aqueous solution, and neutralizing with ammonia water until the pH value is 8-10 to form hydrated TiO 2 white precipitate; dispersing the white precipitate in saturated oxalic acid aqueous solution, and heating and peptizing the solution on a water bath at 60-80 ℃ to obtain 20g of nano TiO 2 hydrosol with mass concentration of 5%. 400g of acid nano SiO 2 hydrosol with the mass concentration of 10%, 20g of nano TiO 2 hydrosol with the mass concentration of 5% and 20g of niobium oxalate aqueous solution with the mass concentration of 5% are uniformly mixed, and nano TiO 2-Nb2O5 is coated by nano SiO 2 to form 440g of nano SiO 2-TiO2-Nb2O5 composite photocatalyst hydrosol. 80g of aqueous polyurethane solution with the mass concentration of 5% is added, 280g of deionized water is added, the mass concentration of nano SiO 2 in the coating is adjusted to be 5%, and 13.2g of ammonium sulfate is added to obtain 730g of the solar catalytic self-cleaning coating.
Example two
The solar catalysis self-cleaning paint prepared in the example 1 is coated on the surface of solar cell glass, and the thickness of a wet film is 1500-3000nm; drying at 150-200deg.C for 0.5h, and thermally decomposing organic matters in the film layer to form nanometer SiO 2-TiO2-Nb2O5 composite oxide gel film with thickness of 100-200nm. Heat-treating solar cell coated glass with a single-sided nano SiO 2-TiO2-Nb2O5 composite oxide gel film at 600-700 ℃ for 1h, sintering the solar cell coated glass on the solar glass, rapidly cooling the solar cell coated glass to room temperature by air cooling and water washing, SO that the solar cell coated glass is tempered, the impact resistance strength of the solar cell coated glass is improved, an SO 4 2-/SiO2-TiO2-Nb2O5 composite oxide self-cleaning antireflection film is formed on the solar cell glass, the light transmittance of the coated glass is 94.6%, and the antireflection rate is 3%; hardness 6H; the water contact angle was 4 °.

Claims (2)

1. The preparation method of the solar catalysis self-cleaning paint is characterized by comprising 5 parts of preparation of an acidic polyurethane aqueous solution, preparation of an acidic nano SiO 2 hydrosol, preparation of a nano TiO 2 hydrosol, preparation of a composite photocatalyst and preparation of the photocatalysis self-cleaning paint, and specifically comprises the following steps:
(1) Diluting a commercial aqueous polyurethane solution with the mass concentration of 40% -50% by using deionized water, and adjusting the pH value of the polyurethane aqueous solution to be 2-3 by using a saturated oxalic acid aqueous solution to obtain an aqueous polyurethane solution with the mass concentration of 5%; the aqueous polyurethane is a commercial aromatic and aliphatic single-component polyurethane aqueous solution or emulsion, and the molecular weight of the polymer is 2000-10000;
(2) Diluting commercial alkaline SiO 2 hydrosol with the mass concentration of 30-40%, and adjusting the pH value of the hydrosol to be 2-3 by using saturated oxalic acid aqueous solution to obtain acidic SiO 2 hydrosol with the mass concentration of 10% and the particle size of 10-50 nm;
(3) Dissolving titanyl sulfate in dilute sulfuric acid aqueous solution, and neutralizing with ammonia water to pH=8-10 to form hydrated TiO 2 white precipitate; dispersing the white precipitate in saturated oxalic acid aqueous solution, and controlling the molar ratio of TiO 2 to oxalic acid to be 1:0.6-1, heating and peptizing on a water bath at 60-80 ℃ to obtain nano TiO 2 hydrosol with mass concentration of 5%;
(4) An acidic nano SiO 2 hydrosol with the mass concentration of 10%, a nano TiO 2 hydrosol with the mass concentration of 5% and an niobium oxalate aqueous solution with the mass concentration of 5% are mixed according to the molar ratio of SiO 2：TiO2：Nb2O5 =1: 0.01-0.05:0.02-0.1, and the nano TiO 2-Nb2O5 is coated by nano SiO 2 to form nano SiO 2-TiO2-Nb2O5 composite photocatalyst hydrosol;
(5) Adding 5% aqueous polyurethane solution into the mixture, and controlling the feeding mass ratio of the aqueous polyurethane to the nano SiO 2 to be 0.2-1:1, adding deionized water to adjust the mass concentration of nano SiO 2 to 5%, and according to the molar ratio (Ti+Nb): s=1: and 0.2-1 of ammonium sulfate to obtain the photocatalysis self-cleaning coating.
2. The application method of the solar catalytic self-cleaning coating is characterized by comprising 2 parts of preparation of a composite oxide sol-gel film and preparation of a composite oxide self-cleaning antireflection film, and comprises the following specific steps:
(1) Coating the photocatalytic self-cleaning coating material in claim 1 on the surface of solar cell glass, wherein the wet film thickness is 1500-3000nm; drying at 150-200deg.C, and thermally decomposing organic matters in the film layer to form nano SiO 2-TiO2-Nb2O5 composite oxide gel film with thickness of 100-200nm;
(2) Heat-treating solar cell coated glass with a single-sided nano SiO 2-TiO2-Nb2O5 composite oxide gel film at 600-700 ℃ for 0.2-1h, sintering the coated glass on the solar cell, rapidly cooling the coated glass by air and water to room temperature, SO that the coated glass of the solar cell is tempered, the impact resistance is improved, an SO 4 2-/SiO2-TiO2-Nb2O5 composite oxide self-cleaning antireflection film is formed on the solar cell glass, the light transmittance of the coated glass is 93.6-94.6%, and the antireflection rate is 2-3%; hardness is 5-6H; the water contact angle is 4-8 degrees.
CN202310805588.7A 2023-07-03 2023-07-03 Solar catalysis self-cleaning paint and preparation and application methods thereof Active CN116694217B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105209554A (en) * 2013-03-15 2015-12-30 贝洱工艺公司 Superhydrophilic coating composition

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09291227A (en) * 1996-02-26 1997-11-11 Ito Kogaku Kogyo Kk Primer coating material for optical element
JP3595996B2 (en) * 1998-10-01 2004-12-02 株式会社豊田中央研究所 Photocatalyst composition and method for producing the same
CN1100835C (en) * 1998-10-30 2003-02-05 中国科学院感光化学研究所 Titanium sol-gel paint adding nm inorganic compound particles, method for preparing same and use thereof
CN100357367C (en) * 2002-02-04 2007-12-26 旭化成株式会社 Antifouling water-based coating composition
US20070077406A1 (en) * 2005-09-30 2007-04-05 Jacobs Jeffry L Photocatalytic coating
US20070218095A1 (en) * 2006-03-14 2007-09-20 3M Innovative Properties Company Photocatalytic substrate with biocidal coating
JP2008040171A (en) * 2006-08-07 2008-02-21 Pentax Corp Optical element with antireflection film having self-cleaning effect and method for manufacturing the same
DE102008006785B3 (en) * 2008-01-30 2009-06-10 Schott Ag Process for producing a smear-resistant antireflection coating on a borosilicate glass body and use of the coated glass body for producing lamp bulbs of discharge lamps
JP2010260753A (en) * 2009-05-01 2010-11-18 Ohara Inc Glass ceramic composite material and method for manufacturing the same
JP5557662B2 (en) * 2010-09-10 2014-07-23 日揮触媒化成株式会社 Dispersion of core-shell type inorganic oxide fine particles, process for producing the same, and coating composition containing the dispersion
KR101907882B1 (en) * 2011-06-03 2018-10-16 닛산 가가쿠 가부시키가이샤 Metal oxide particles containing titanium oxide coated with silicon dioxide-tin(iv) oxide complex oxide
JP2017042683A (en) * 2014-03-03 2017-03-02 株式会社鯤コーポレーション Photocatalyst coating liquid, and photocatalyst film using the same
CN110520764A (en) * 2017-04-12 2019-11-29 富士胶片株式会社 Antireflection film and optical component
CN109665719B (en) * 2018-11-30 2022-05-24 东莞南玻太阳能玻璃有限公司 Self-cleaning high anti-reflection coating solution, preparation method thereof and self-cleaning high anti-reflection solar glass
US20230105541A1 (en) * 2020-03-12 2023-04-06 Pilkington Group Limited Coated glazing
CN114249351B (en) * 2020-09-21 2023-02-24 中国科学院大连化学物理研究所 Tetragonal niobium pentoxide material and synthesis and application thereof
CN112371105B (en) * 2020-11-26 2023-09-05 陕西科技大学 Niobium pentoxide/titanium dioxide composite photocatalyst and preparation method and application thereof
CN114196241A (en) * 2022-01-12 2022-03-18 天津市职业大学 Photocatalytic self-cleaning coating and preparation method and application thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105209554A (en) * 2013-03-15 2015-12-30 贝洱工艺公司 Superhydrophilic coating composition

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