CN1233755C - Preparation and coating technology of light purification environment-friendly coating - Google Patents
Preparation and coating technology of light purification environment-friendly coating Download PDFInfo
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- CN1233755C CN1233755C CN 03136596 CN03136596A CN1233755C CN 1233755 C CN1233755 C CN 1233755C CN 03136596 CN03136596 CN 03136596 CN 03136596 A CN03136596 A CN 03136596A CN 1233755 C CN1233755 C CN 1233755C
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- colloidal sol
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- photocatalysis performance
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- 238000000576 coating method Methods 0.000 title claims abstract description 73
- 239000011248 coating agent Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 238000000746 purification Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 38
- 230000001699 photocatalysis Effects 0.000 claims abstract description 28
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 239000004094 surface-active agent Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 238000007146 photocatalysis Methods 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 11
- 150000004703 alkoxides Chemical class 0.000 claims description 11
- 239000013543 active substance Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- -1 polyoxyethylene Polymers 0.000 claims description 8
- 238000000502 dialysis Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- ABDBNWQRPYOPDF-UHFFFAOYSA-N carbonofluoridic acid Chemical compound OC(F)=O ABDBNWQRPYOPDF-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 238000002525 ultrasonication Methods 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 2
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 1
- OIGNJSKKLXVSLS-VWUMJDOOSA-N prednisolone Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OIGNJSKKLXVSLS-VWUMJDOOSA-N 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 5
- 239000003973 paint Substances 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 3
- 229920002522 Wood fibre Polymers 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 239000002025 wood fiber Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 7
- 239000005357 flat glass Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OMBRFUXPXNIUCZ-UHFFFAOYSA-N dioxidonitrogen(1+) Chemical compound O=[N+]=O OMBRFUXPXNIUCZ-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- 239000012463 white pigment Substances 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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- 239000013530 defoamer Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- 238000004065 wastewater treatment Methods 0.000 description 1
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Landscapes
- Paints Or Removers (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of a light purification environment-friendly coating with photocatalytic performance and a coating technology thereof. Namely, the conventional titanium dioxide sol or the composite titanium dioxide sol containing other oxides is treated by the following steps: heat treatment, adding surfactant or adding surfactant after heat treatment to obtain the photocatalytic environment friendly paint. The coating is coated on the surface of the conventional organic coating to form a composite light purification environment-friendly coating with weather resistance, stain resistance and environment-friendly performance. The paint and the coating process thereof can be widely applied to coating of inner and outer walls of buildings, and can also be applied to coating of substrates such as concrete, gypsum boards, glass, wood fiber boards, plastics, metal and other composite materials.
Description
Technical field
The present invention relates to the coating in the material of construction, a kind of specifically preparation and paint-on technique thereof of compound light purification environmental-protection type coating with photocatalysis performance.
Background technology
Along with continually developing of optically catalytic TiO 2 function, titanium dioxide is obtaining increasingly extensive application aspect the environmental improvements such as purifying air, wastewater treatment.People have developed such as multiduty optically catalytic TiO 2 products such as automatically cleaning and antibiotic ceramic tile, automatically cleaning fog resistant glass, photocatalysis air purifying devices.Simultaneously, titanium dioxide is as a kind of white pigment, in organic coating, be used widely, consider the photocatalysis Decomposition destruction that as far as possible reduces organic resin base-material in the coating, thereby as the titanium dioxide of the white pigment very weak rutile structure of photocatalysis normally.The anatase titanium dioxide that how will have photocatalysis is incorporated in the coating, develop have automatically cleaning and anti-microbial property, can degradable organic pollutant, and the coating that nondiscoloration itself is decomposed is the target that people constantly pursue always.
Wu Jisheng etc. have introduced a kind of outer, nanometer paint for inner wall and preparation method thereof respectively in Chinese patent bulletin 00125489 and 00125490: have a certain amount of titania powder of adding in the lacquer components such as conventional component benzene emulsion, softening agent, defoamer and film coalescence aid, it is strong to make nontoxic, tasteless, high strength, high tenacity, ageing resistance, the water soluble green environmental protection coating material with antimildew and antibacterial function.Wang Shengtian discloses a kind of atmospheric coating that purifies in Chinese patent bulletin 00115413: by silicone resin or colloidal sol---and add 50～60% titanium dioxide in the component of gel adhesive and solvent composition, make coating.This product is coated in buildings, the viaduct in city, the both sides of road, utilizes the catalysis of sunlight, but titanium dioxide absorbing NOx wherein, the pollution problem of soluble oxynitride.Though these coating have certain photocatalysis performance, the long-time photocatalysis meeting of using back titanium dioxide causes the degraded of organic constituent in the coating and causes phenomenon such as variable color.In addition, titania powder is added in the coating, the few part that only is exposed to the surface works, and the membrane-forming agent of coating surface has also limited the photocatalysis of titanium dioxide.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of preparation and paint-on technique thereof with light purification environmental-protection type coating of photocatalysis performance.Promptly prepare TiO 2 sol and complex sol thereof with organic hydrolysis of alkoxide, after colloidal sol handled, make anatase type TiO 2 sol and complex sol type coating thereof with photocatalysis performance, and be coated in conventional organic coating surface by the mode that sprays, lifts, prints, brushes or flood, thereby form the compound smooth purification environmental-protection type coating that one deck has weathering resistance, resistance to soiling and environmental-protecting performance (decomposing volatile organic matters, oxynitride and oxysulfide, sterilization) concurrently at substrate surface.
The technical solution adopted for the present invention to solve the technical problems is:
Prepare pure titinium dioxide colloidal sol earlier and contain the composite titanium dioxide colloidal sol of other oxide compounds, then respectively above-mentioned two kinds of colloidal sols one of are by the following method handled the composite titanium dioxide colloidal sol type coating that makes the Detitanium-ore-type pure titinium dioxide with photocatalysis performance and contain other oxide compounds: method one is directly to heat-treat; Method two is to add tensio-active agent; Method three is to add tensio-active agent after heat-treating again.At last with the coating that makes routinely coating method directly be coated in dried conventional coating surface.
Concrete technical scheme is as follows:
One. the preparation of coating comprises pure titinium dioxide colloidal sol and contains the preparation and the aftertreatment of the composite titanium dioxide colloidal sol of other oxide compounds.
(1) pure titinium dioxide colloidal sol preparation: under the condition of acid pH＜5 or alkaline pH＞7,, obtain the colloidal sol of homogeneous transparent, regulate pH value to 1～5 of colloidal sol by dialysis with alkoxide (for example titanium isopropylate, the tetrabutyl titanate) hydrolysis of titanium.
(2) composite titanium dioxide colloidal sol preparation: the composite titanium dioxide colloidal sol preparation method who contains other oxide compounds has two kinds.Preparation method one is the SiO that the alkoxide of silicon, aluminium, zirconium, zinc or tin is hydrolyzed into the one-component of homogeneous transparent under the condition of acid pH＜5 or alkaline pH＞7
2, Al
2O
3, ZrO
2, ZnO or SnO colloidal sol, regulate pH value to 1～5 respectively, then wherein one or more and TiO 2 sol are to mix in 1: 99～75: 25 by the gross weight content and the ratio of the weight content of titanium dioxide of above-mentioned oxide compound, make the composite titanium dioxide colloidal sol that contains other oxide compounds.Preparation method two is to be to mix in 1: 99～75: 25 the corresponding alkoxide of two or more different components by the gross weight content of above-mentioned alkoxide and the ratio of the weight content of titanium alkoxide earlier, mix the back and under the condition of acid pH＜5 or alkaline pH＞7, be hydrolyzed into the composite titanium dioxide colloidal sol that contains other oxide compounds, transfer colloidal sol pH value to 1～5.Pure titinium dioxide colloidal sol consists of: content of titanium dioxide is 0.1～20.0 weight %, and all the other are water; And in composite titanium dioxide colloidal sol, content of titanium dioxide is 0.1～20.0 weight %, other oxide component content that contained 0.1～5.0 weight % that respectively does for oneself, and all the other are water.
(3) thermal treatment of colloidal sol: pure titinium dioxide colloidal sol that will make by above-mentioned (1) and (2) method or the composite titanium dioxide colloidal sol that contains other oxide compounds in airtight pressure vessel 80～250 ℃ handled 0.5～15.0 hour down, take out the cooling back, ultrasonication 1～10 minute, the composite titanium dioxide colloidal sol type coating that makes Detitanium-ore-type pure titinium dioxide or contain other oxide compounds with photocatalytic activity.
(4) add tensio-active agent: in pure titinium dioxide colloidal sol of heat-treating or not heat-treating and the composite titanium dioxide colloidal sol that contains other oxide compounds, also can add the tensio-active agent that content is 0.1～10.0 weight %.Tensio-active agent is polyvinyl alcohol, polyoxyethylene glycol, perfluoro carboxylic acid (as Perfluorocaprylic Acid), perfluoroalkyl carboxylate, fluorinated alkyl sulfonate and non-ionic type fluorochemical surfactant.After stirring, make the colloidal sol type coating that contains tensio-active agent.
Two. the coating of coating
The above-mentioned multiple light purification environmental-protection type coating with photocatalysis performance that the present invention makes is according to a kind of use of the different choice of field of employment and base material.The dried conventional coating surface that is coated in of above-mentioned coating is brushed in the usual way and is sprayed, and need not to carry out the various aftertreatments of conventional photocatalyst.
Benefit of the present invention and superiority are: TiO 2 sol that organic hydrolysis of alkoxide makes and the composite titanium dioxide colloidal sol that contains other oxide compounds is through after the special thermal treatment, do not need just can crystallization to become to have through subsequent disposal such as roastings the anatase titanium dioxide or the composite titanium dioxide colloidal sol type light purification coating of photocatalysis performances such as automatically cleaning, antibiotic and decomposing pollutant.The layering of this coating and conventional organic coating is used and can be had weathering resistance, resistance to soiling and environmental-protecting performance (decomposing volatile organic matters, oxynitride and oxysulfide concurrently in substrate surface formation, sterilization) coating, and conventional coating is not decomposed, and reduced the consumption and the cost of coating simultaneously.Coating of the present invention and coating processes thereof can be widely used in building the coating and the decoration of inner, external wall, also can be applicable to the coating and the decoration of base materials such as concrete, plasterboard, glass, timber, wood fibre board, plastics, metal and other matrix material.
Embodiment
Embodiment 1: pure titinium dioxide colloidal sol type light purifies the preparation of coating
Be made into homogeneous solution in the deionized water with 150 milliliters of 1.1 milliliters of concentrated nitric acids (68%) addings, under violent stirring 12.5 milliliters titanium isopropylate is slowly splashed in the acidic aqueous solution, the suspension that contains white precipitate that hydrolysis obtains continues to stir the colloidal sols that form homogeneous transparent until the white precipitate dissolving down at 40 ℃.Colloidal sol packed into carry out dialysis with 2 liters of deionized waters in the dialyzer bag and handle, changing water to a dialysis water final pH value every 12 hours is 3.2.Colloidal sol is taken out from dialysis bag, make concentration and be about 2.5% TiO 2 sol.This TiO 2 sol was handled 5.0 hours down at 150 ℃ in airtight pressure vessel, and take out the cooling back, and ultrasonication 5 minutes makes the anatase type TiO 2 sol type coating with photocatalytic activity.In this coating, the titania size is 6～10nm, and crystallization degree is more than 80.0%.
Embodiment 2: titania-silica complex sol type light purifies the preparation of coating
Under violent stirring, 5 milliliters of tetraethoxys are slowly splashed in the solution that is made into by 0.25 milliliter of concentrated nitric acid (68%) and 10 ml deionized water, continue to stir silicon dioxide gel until forming homogeneous transparent.This colloidal sol by dialysis after, get its 10 milliliters and mix with 100 milliliters of TiO 2 sols by embodiment 1 preparation, then by with embodiment 1 in identical dialysis handle, adjust pH is 2.8.Add polyoxyethylene glycol 5.0 grams at last, stirring under induction stirring makes composite titanium dioxide colloidal sol type coating.In this coating, content of titanium dioxide is 2.3 weight %, and dioxide-containing silica is 1.1 weight %, and polyoxyethylene glycol is 4.4 weight %, and the pH value is 2.8.
Embodiment 3: the composite coating on the sheet glass applies and performance evaluation
Surface of plate glass after clean is evenly brushed the commercially available exterior coating of one deck, and the composite titanium dioxide colloidal sol type light of brushing preparation among one deck embodiment 2 after the seasoning purifies coating, dries naturally.
Composite coating performance evaluation on the sheet glass:
1) the watercolor comparison of fading: the glass paint surface that makes in embodiment 3 draws mark with watercolor pencil, carries out illumination with the 254nm ultraviolet lamp, behind the illumination 2min, and the watercolor color fade.And only apply the watercolor mark of conventional exterior coating glass surface, do not take off behind the illumination 2min.
2) solar irradiation senile experiment: be placed on the sheet glass that makes among the embodiment 3 indoor respectively and be exposed to outdoor, both appearance change relatively after fortnight.The result shows what difference both background colors almost do not have.
3) remove the experiment of oxynitride and oxysulfide:, in volume is 2 cubic metres closed cabinet, carry out the evaluation experimental of photocatalysis Decomposition nitrogen peroxide and sulfurous gas respectively with the sheet glass that makes among the embodiment 3.Appreciation condition is: ultraviolet lamp wavelength 254nm, power 10w * 2, sheet glass area are 10cm * 10cm * 50 slice, and nitrogen peroxide and sulfurous gas initial concentration all are 80ppm, and temperature of reaction is a room temperature, 5 hours reaction times.Reaction result is that the clearance of nitrogen peroxide and sulfurous gas is respectively 96.4% and 92%.
Claims (7)
1. preparation method who is coated on the light purification environmental-protection type coating with photocatalysis performance of conventional coating surface, it is characterized in that at first preparing colloidal sol: 1. prepare pure titinium dioxide colloidal sol: under the condition of acid pH＜5 or alkaline pH＞7 with the hydrolysis of alkoxide of titanium, obtain the colloidal sol of homogeneous transparent, regulate pH value to 1～5 of colloidal sol by dialysis; 2. preparation contains the composite titanium dioxide colloidal sol of other oxide compounds; Then respectively above-mentioned arbitrary colloidal sol one of is by the following method handled the composite titanium dioxide colloidal sol type coating that makes the Detitanium-ore-type pure titinium dioxide with photocatalysis performance or contain other oxide compounds: method one is directly to heat-treat; Method two is to add tensio-active agent; Method three is to add tensio-active agent after heat-treating again; Wherein above-mentioned heat treatment process is: handled 0.5～15.0 hour down for 80～250 ℃ in airtight pressure vessel, ultrasonication 1～10 minute is taken out in the cooling back; Above-mentioned tensio-active agent is polyvinyl alcohol, polyoxyethylene glycol, perfluoro carboxylic acid and salt thereof, fluorinated alkyl sulfonate and non-ionic type fluorochemical surfactant; The addition of tensio-active agent is 0.1～10.0 weight % with light purification environmental-protection type coating of photocatalysis performance.
2. the preparation method with light purification environmental-protection type coating of photocatalysis performance according to claim 1 is characterized in that: the described preparation method one who contains the composite titanium dioxide colloidal sol of other oxide compounds is the SiO that the alkoxide of silicon, aluminium, zirconium, zinc or tin is hydrolyzed into the one-component of homogeneous transparent under the condition of acid pH＜5 or alkaline pH＞7
2, Al
2O
3, ZrO
2, ZnO or SnO colloidal sol, regulate pH value to 1～5 respectively, then wherein one or more and TiO 2 sol are to mix in 1: 99～75: 25 by the gross weight content and the ratio of the weight content of titanium dioxide of above-mentioned oxide compound, make the composite titanium dioxide colloidal sol that contains other oxide compounds.
3. the preparation method with light purification environmental-protection type coating of photocatalysis performance according to claim 1, it is characterized in that: the described preparation method two who contains the composite titanium dioxide colloidal sol of other oxide compounds is elder generation's corresponding alkoxide with two or more different components in the alkoxide of silicon, aluminium, zirconium, zinc or tin, by the gross weight content of above-mentioned alkoxide and the ratio of the weight content of titanium alkoxide is to mix in 1: 99～75: 25, can under the condition of acid pH＜5 or alkaline pH＞7, be hydrolyzed into composite titanium dioxide colloidal sol after mixing, transfer colloidal sol pH value to 1～5.
4. the preparation method with light purification environmental-protection type coating of photocatalysis performance according to claim 1, it is characterized in that: described pure titinium dioxide colloidal sol consists of: wherein content of titanium dioxide is 0.1～20.0 weight %, and all the other are water.
5. the preparation method with light purification environmental-protection type coating of photocatalysis performance according to claim 1, it is characterized in that: in the described composite titanium dioxide colloidal sol that contains other oxide compounds, wherein content of titanium dioxide is 0.1～20.0 weight %, other oxide component content that contained 0.1～5.0 weight % that respectively does for oneself, all the other are water.
6. the preparation method with light purification environmental-protection type coating of photocatalysis performance according to claim 1, it is characterized in that: described perfluoro carboxylic acid comprises Perfluorocaprylic Acid.
7. a kind of using method with light purification environmental-protection type coating of photocatalysis performance that obtains according to claim 1 preparation method, it is characterized in that: described light purification environmental-protection type coating with photocatalysis performance is directly brushed in the usual way and is sprayed at dried conventional coating surface.
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|---|---|---|---|
| CN 03136596 CN1233755C (en) | 2003-05-22 | 2003-05-22 | Preparation and coating technology of light purification environment-friendly coating |
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| CN 03136596 CN1233755C (en) | 2003-05-22 | 2003-05-22 | Preparation and coating technology of light purification environment-friendly coating |
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| CN1473884A CN1473884A (en) | 2004-02-11 |
| CN1233755C true CN1233755C (en) | 2005-12-28 |
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| CN100347248C (en) * | 2006-01-06 | 2007-11-07 | 浙江大学 | Method for preparing broad-spectrum excitation responsible coating self-cleaning protector |
| CN100999624B (en) * | 2007-01-05 | 2010-05-19 | 福州大学 | Compounding of inorganic anti-pollution coating for high pressure insulator surface and preparation process thereof |
| CN101851068B (en) * | 2010-06-12 | 2012-07-18 | 重庆龙者低碳环保科技有限公司 | Method for spraying and coating heat insulation film on surface of glass |
| CN102304326B (en) * | 2010-08-16 | 2013-04-03 | 江苏考普乐新材料股份有限公司 | Coating and preparation method thereof |
| CN101980379B (en) * | 2010-09-27 | 2012-03-21 | 彩虹集团公司 | Method for preparing anti-reflection and self-cleaning composite membrane for solar cell |
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| CN105365469B (en) * | 2014-08-29 | 2019-02-22 | 北新集团建材股份有限公司 | A kind of preparation method of decorations plasterboard |
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-
2003
- 2003-05-22 CN CN 03136596 patent/CN1233755C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240816A (en) * | 2019-06-29 | 2019-09-17 | 华南理工大学 | A kind of transparent self-cleaning anti-dust depositing coating material and preparation method thereof |
| CN110240816B (en) * | 2019-06-29 | 2021-09-21 | 华南理工大学 | Transparent self-cleaning anti-dust deposition coating material and preparation method thereof |
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| CN1473884A (en) | 2004-02-11 |
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