WO1999028393A1 - Composition d'oxyde photocatalytique, film mince et materiau composite - Google Patents
Composition d'oxyde photocatalytique, film mince et materiau composite Download PDFInfo
- Publication number
- WO1999028393A1 WO1999028393A1 PCT/JP1998/005374 JP9805374W WO9928393A1 WO 1999028393 A1 WO1999028393 A1 WO 1999028393A1 JP 9805374 W JP9805374 W JP 9805374W WO 9928393 A1 WO9928393 A1 WO 9928393A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- photocatalytic
- thin film
- titanium oxide
- oxide
- weight
- Prior art date
Links
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 60
- 239000000203 mixture Substances 0.000 title claims abstract description 40
- 239000010409 thin film Substances 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 48
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 150000003755 zirconium compounds Chemical class 0.000 claims abstract description 25
- 239000002904 solvent Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 15
- 239000003960 organic solvent Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 239000000123 paper Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 abstract description 33
- 239000011248 coating agent Substances 0.000 abstract description 32
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 26
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 230000003373 anti-fouling effect Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 230000002378 acidificating effect Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
- 235000019441 ethanol Nutrition 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 8
- 239000010408 film Substances 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008719 thickening Effects 0.000 description 4
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- DUFCMRCMPHIFTR-UHFFFAOYSA-N 5-(dimethylsulfamoyl)-2-methylfuran-3-carboxylic acid Chemical compound CN(C)S(=O)(=O)C1=CC(C(O)=O)=C(C)O1 DUFCMRCMPHIFTR-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- WRAGBEWQGHCDDU-UHFFFAOYSA-M C([O-])([O-])=O.[NH4+].[Zr+] Chemical compound C([O-])([O-])=O.[NH4+].[Zr+] WRAGBEWQGHCDDU-UHFFFAOYSA-M 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- -1 sols Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 2
- FMXLGOWFNZLJQK-UHFFFAOYSA-N hypochlorous acid;zirconium Chemical compound [Zr].ClO FMXLGOWFNZLJQK-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 239000005361 soda-lime glass Substances 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- 102100039217 3-ketoacyl-CoA thiolase, peroxisomal Human genes 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 101100203596 Caenorhabditis elegans sol-1 gene Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101100153048 Homo sapiens ACAA1 gene Proteins 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- JSIVLBGUDVQDHZ-UHFFFAOYSA-J [Cl-].[Cl-].[Cl-].O[Zr+3] Chemical compound [Cl-].[Cl-].[Cl-].O[Zr+3] JSIVLBGUDVQDHZ-UHFFFAOYSA-J 0.000 description 1
- BNUDRLITYNMTPD-UHFFFAOYSA-N acetic acid;zirconium Chemical compound [Zr].CC(O)=O BNUDRLITYNMTPD-UHFFFAOYSA-N 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
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 125000005157 alkyl carboxy group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000007611 bar coating method Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- WBFZBNKJVDQAMA-UHFFFAOYSA-D dipotassium;zirconium(4+);pentacarbonate Chemical compound [K+].[K+].[Zr+4].[Zr+4].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O WBFZBNKJVDQAMA-UHFFFAOYSA-D 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002338 electrophoretic light scattering Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- TVCBSVKTTHLKQC-UHFFFAOYSA-M propanoate;zirconium(4+) Chemical compound [Zr+4].CCC([O-])=O TVCBSVKTTHLKQC-UHFFFAOYSA-M 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
-
- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- 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
-
- 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
Definitions
- the present invention maintains photocatalytic activity at a sufficiently high level, has an extremely small increase in viscosity over time, has excellent workability, and exhibits good adhesiveness when coated on a substrate as a thin film forming material.
- the present invention relates to a photocatalytic oxide-containing composition. Background technology
- photocatalytic properties The form of oxide particles having photocatalytic ability (hereinafter referred to as photocatalytic properties) varies depending on the purpose of use, such as bulk particles, sols, and thin films. From a practical standpoint, they are often made into thin films because of their ease of handling.
- a method of thinning the photocatalytic oxide particles for example, a method of forming a photocatalytic oxide thin film on a glass surface from a metal alkoxide by a sol-gel method is known.
- a film-forming composition comprises a film-forming element comprising a siloxane polymer or a silicate and a hydrolyzable silane-inducing compound.
- a coating composition using a conductive monomer as a binder has been proposed.
- a hydrolyzable silicon compound is used, so that hydrolysis gradually occurs and the polycondensation reaction proceeds, resulting in a decrease in adhesive strength and an increase in viscosity during storage of the composition, resulting in a pot. It had problems such as short life (pot life).
- An object of the present invention is to maintain the photocatalytic ability of a photocatalytic oxide at a sufficiently high level, to have very little increase in viscosity over time, to be excellent in workability, and to have good adhesion when coated on a substrate as a thin film forming material.
- Another object of the present invention is to provide a photocatalytic oxide-containing composition having the following formula:
- Another object of the present invention is to provide a thin film formed from the above-described photocatalytic oxide-containing composition.
- Still another object of the present invention is to provide a thin film and a substrate which are formed by applying the above-mentioned photocatalytic oxide-containing composition on the surface of a substrate and which are transparent, adhere well to the substrate and do not easily peel off.
- a composite comprising:
- the present inventors have conducted various studies on a photocatalytic oxide-containing composition suitable as a thin film forming material, and found that a photocatalytic oxide-containing composition to which a specific zirconium compound was added maintained a photocatalytic ability at a sufficiently high level. However, they have found that they have very little increase in viscosity over time, have excellent workability, and are suitable as a thin film-forming material exhibiting good adhesiveness, and have completed the present invention.
- composition containing an oxide particle having a photocatalytic ability, a solvent-soluble zirconium compound, and a solvent there is provided a composition containing an oxide particle having a photocatalytic ability, a solvent-soluble zirconium compound, and a solvent.
- the photocatalytic oxide-containing composition is applied on a substrate surface.
- a composite of a thin film formed by the above method and a substrate is provided.
- the photocatalytic oxide particles used in the present invention exhibit catalytic activity for the oxidation-reduction reaction of an organic compound when irradiated with light having an energy larger than the band gap between the crystal conductor and the valence band. It consists of a metal oxide.
- metal compounds having photocatalytic properties as described above include rutile-type titanium oxide, ana-type titanium oxide, brookite-type titanium oxide, strontium titanate, tin oxide, zinc oxide, and iron oxide. And the like.
- the oxide particles are preferably fine from the viewpoint of photocatalytic activity, but those having an average particle size of less than 0.05 m are difficult to manufacture. difficult. Therefore, usually, those having an average particle size in the range of 0.05 to 0.3 zm, preferably in the range of 0.01 to 0.1 / m are used. Its specific surface area is preferably in the range from 50 to 400 m / g.
- titanium oxide is most preferably used because the fine particles as described above are easily available, and are harmless and chemically stable.
- Titanium oxide obtained by a known method can be used without limitation.
- a titanium oxide-containing sol generated by hydrolysis may be used.
- a powder of titanium oxide fine particles can be obtained from the sol and used by dispersing it in a solvent.
- the titanium oxide fine particles may be those obtained by a known gas phase method.
- a particularly preferable method for obtaining titanium oxide fine particles is a method for hydrolyzing titanium chloride or titanium sulfate because it is easy to operate and inexpensive.
- the titanium oxide particles prepared by this method have good dispersibility and transparency when formed into a thin film.
- the amount of the photocatalytic oxide in the composition is preferably in the range of 1 to 25% by weight based on the total amount of the composition. If it is less than 1% by weight, the photocatalytic activity is not sufficient, and 25 If the content is more than 10% by weight, the dispersibility of the oxide particles is reduced, the viscosity is increased, and the composition becomes unstable.
- the zirconium compound used in the present invention acts as a binder when the photocatalytic oxide-containing composition is applied to a substrate, and may be any zirconium compound that can be dissolved in water or an organic solvent.
- water-soluble zirconium compound examples include those forming an acidic aqueous solution such as zirconium chloride, zirconium hydroxychloride, zirconium nitrate, zirconium sulfate, zirconium acetate, zirconium carbonate ammonium, potassium zirconium carbonate, and the like.
- examples thereof include those which form an alkaline aqueous solution such as zirconium carbonate ammonium and sodium phosphate, and zirconium compounds soluble in an organic solvent include zirconium propionate.
- water-soluble zirconium compounds such as zirconium oxychloride, zirconium hydroxychloride, zirconium nitrate, and ammonium zirconium carbonate are preferable from the viewpoint of the working environment because the composition can be prepared without using an organic solvent.
- a zirconium compound complex and complex salt having at least one of a hydroxyl group, a carbonate group and an alkylcarboxy group, or a high-molecular zirconium compound thereof can also be used.
- This polymer zirconium compound is commercially available (for example, manufactured by Magnesium Elektron Ltd., and details are described in the company's DataSheet150, Se. 1985).
- the zirconium compound may be used alone or in combination of two or more types.
- the zirconium compound is used as a starting material when preparing the photocatalytic oxide-containing composition. It may react with an organic solvent to form another compound.
- the water-dispersed photocatalytic oxide sol it is preferable to use an acidic zirconium compound when the water-dispersed photocatalytic oxide sol is acidic so that pH shock does not occur.
- the oxide sol is alkaline, it is preferable to use a zirconium compound exhibiting alkalinity. Addition of acid to the acidic sol or addition of acid to the acid sol and mixing with the zirconia compound It is also possible.
- the amount of the zirconium compound to the photocatalytic oxide particles, to photocatalytic oxide particles 1 0 0 parts by weight, preferably in the range of 3-2 0 0 parts by weight in terms of zirconium compound Z r 0 2 . If the amount of the zirconium compound is less than 3 parts by weight, the bonding force for the thin film formed on the substrate to adhere to the substrate will be weak. When the relative amount of the zirconium compound to the photocatalytic oxide particles increases, the photocatalytic ability decreases, and when it exceeds 200 parts by weight, the photocatalytic ability decreases considerably.
- the degree of change in the contact angle due to ultraviolet irradiation can be controlled by changing the ratio between the zirconium compound and titanium oxide. From the above, a more preferable blending amount is in the range of 5 to 60 parts by weight.
- the solvent used for preparing the photocatalytic oxide-containing composition of the present invention is water and Z or an organic solvent.
- the organic solvent is preferably hydrophilic.
- hydrophilic organic solvents include monohydric alcohols such as methanol, ethanol, propanol and butanol, polyhydric alcohols such as ethylene glycol, diethylene glycol and glycerin, and ketones such as acetone and methyl ethyl ketone.
- esters such as ethyl acetate and butyl acetate, and cellosolves such as ethyl ethyl solvate. These may be used alone or in combination of two or more, but are preferably determined in consideration of the stability of the composition, the type of the base material, the drying conditions at the time of film formation, the economic efficiency, and the like.
- the composition of the present invention mainly comprises oxide particles having a photocatalytic ability, a solvent-soluble zirconium compound and a solvent, and may further contain various additives.
- a thickener such as glycerin, polyvinyl alcohol, methylcellulose, polyethylene glycol and the like, and a dispersant such as polyacrylic acid and polyacrylic acid can be contained in order to enhance the film forming property of the composition.
- metal particles such as silver and copper may be added to kill bacteria attached to the surface even in a dark place, and a platinum group such as palladium and platinum may be added to enhance photocatalytic activity. A metal may be added.
- Each of these additives is used in an amount of about 10 to 1000 ppm.
- the composition of the present invention comprises the above photocatalytic oxide particles, a solvent-soluble zirconium compound. It is prepared by adding a substance and a solvent, and if necessary, the above-mentioned various additives, and stirring, and can be stored as it is and has good storage stability.
- the composition according to the present invention can be applied to a substrate made of various materials and molded articles to form a photocatalytic oxide thin film on the surface of the substrate.
- the base material glass, plastic, ceramics, metal, wood, paper, concrete, etc. can be used almost without limit, and glass is particularly preferable. It is also suitable as a base material for electric lights and lighting equipment. In this case, a mixed system of water and an organic solvent is preferable as the solvent in the composition.
- the thickness of the thin film formed on the substrate surface is preferably in the range of 0.05 to 2 m. If the thickness is less than 0.05 / zm, the photocatalytic activity is not sufficient, and the photocatalytic reaction occurs near the surface, so that a film thickness exceeding 2 zm is easy to peel off and is not preferable in terms of economy.
- the method for applying the composition according to the present invention to the surface of a substrate includes, for example, any of known methods such as a spin coating method, a flow coating method, a dip coating method, a spray coating method, a bar coating method, and a brush coating method. Can also be adopted. Further, in order to prevent the deterioration of the base material due to the oxide particles, the intermediate layer may be formed by undercoating silica, fluororesin or the like in advance before coating.
- the coating is cured.
- the curing method include leaving at room temperature and heat treatment.
- the curing temperature ranges from 20 to 200, preferably from 20 to 150.
- the curing time depends on the solvent, but in general, it may be about 100 minutes in the case of 100.
- a water-dispersed titanium oxide sol having a titanium oxide concentration of 25% by weight and a pH of 5.5 was obtained using an electrodialyzer G3 manufactured by Asahi Kasei Corporation. An aliquot was taken and the particle size of titanium oxide was examined with an electrophoretic light scattering photometer. The average particle size was 0.05 im and the specific surface area was 122 mZg.
- Hydrochloric acid was added to the above acidic water-dispersed titanium oxide sol to give a titanium oxide concentration of 20% by weight and a pH of 4.
- the sol 20 g of acetic acid Jirukouniumu solution (Z R_ ⁇ 2 to 2 2 wt% content) of 6 g and pure water 2 8 g was added thereto to prepare a coating liquid.
- Z R_ ⁇ 2 to 2 2 wt% content acetic acid Jirukouniumu solution
- pure water 2 8 g was added thereto to prepare a coating liquid.
- Z r 0 2 Bruno T I_ ⁇ 2 (weight ratio) of the coating solution became 33%.
- Nitric acid was added to the above-mentioned acidic water-dispersed titanium oxide sol to give a titanium oxide concentration of 20% by weight and a pH of 3.5.
- the sol 20 g (20% by weight and Z R_ ⁇ 2 containing) zirconium acetate solution in an 8 g and pure water 2 7 g was added to prepare a coating solution.
- Z r 0 2 Bruno T I_ ⁇ 2 (weight ratio) of the coating solution became 40%.
- Example 4 instead of the acidic water-dispersed titanium oxide sol, commercially available anatase type titanium oxide particles (titanium oxide specific surface area: 27 Om Zg) were used, and the concentration was 30% by weight and the pH was 1.5. was prepared, the titanium oxide sol 1 3. 3- g (the content 20 wt% as Z r 0 2) hydroxy zirconium chloride aqueous solution 9 g of ethanol 20 g was added to prepare a coating solution. As a result, Z R_ ⁇ co one ting liquid 2 / ⁇ i 0 2 (weight ratio) was 45%. The ratio of water to ethanol was 10:90 (weight ratio).
- a coating solution was prepared by adding 5 g of tetraethoxysilane, 10 g of ethanol and 20 g of isopropanol to 20 g of a water-dispersed titanium oxide sol having a titanium oxide concentration of 20% by weight and a pH of 2. As a result, the coating solution had a S i ⁇ 2 / T i 0 2 ratio) of 35%. Comparative Example 2
- a coating solution was prepared by adding 5.2 g of tetramethoxysilane, 10 g of methanol, and 20 g of pure water to 20 g of a water-dispersed titanium oxide sol having a titanium oxide concentration of 20% by weight and a pH of 4 to prepare a coating solution.
- S i 0 2 / T i ⁇ 2 (weight ratio) of the coating liquid was 50%.
- the coating solution (2 ml) of each of the example and the comparative example was applied to a soda lime glass of 76 ⁇ 26 mm, and held vertically for 10 minutes to remove excess coating solution by flowing down.
- the coating was cured by holding it in a dryer set at 150 ° C for 10 minutes.
- the titanium oxide thin film thus obtained was measured for transparency, photocatalytic ability, adhesion, adhesion, pencil hardness, viscosity increase (viscosity over time) and water contact angle according to the following measurement methods. The change was measured. The results are shown in Table 1.
- Transparency was measured with a haze meter (based on JIS K61818) manufactured by Tokyo Denshoku Technology Sen Yuichi Co., Ltd., and evaluated on the following three levels.
- the photocatalytic activity was determined by applying a few drops of red ink to the substrate, irradiating black light (365 nm) with an ultraviolet intensity of 2. lmWZcm for 30 minutes, and visually observing the fading of the red ink in the following three stages.
- the adhesion to the substrate was evaluated by a water wiping test or an alcohol wiping test.
- a water wiping test or an alcohol wiping test.
- the state of the coating film after the wipe was removed. It was visually evaluated in the following three stages.
- the adhesion test was performed by a grid tape method based on JIS K5400. Cuts were made at lmm intervals, with the number of cuts being 100.
- the aging viscosity stability of the coating solution is determined by measuring the kinematic viscosity of the coating agent on the day of preparation and after leaving it at room temperature for 30 days using a Canon Fenske viscometer (JISK 2283 compliant). It was judged.
- the change in the contact angle of water before and after UV irradiation was measured as follows.
- the thin film is irradiated with ultraviolet light for 1 hour with black light (Toshiba, 20W, UV intensity 2. OmW / cm), and the contact angle of water before and after irradiation is measured by Kyowa Interface Science Co., Ltd., contact angle meter CA-D. It was measured with a mold.
- the measurement environment was 25 and 70 RT%.
- the pencil hardness was measured by a pencil hardness test method (JISK 5400).
- a photocatalytic oxide-containing composition having characteristics of maintaining photocatalytic activity at a sufficiently high level, exhibiting extremely little increase in viscosity over time and excellent workability.
- the thin film obtained by applying and curing the composition on a substrate is transparent and adheres well to the substrate, and firmly bonds to the substrate over a long period of time, and exhibits photocatalytic activity.
- the thin film formed from the photocatalytic oxide-containing composition of the present invention is activated by irradiation with ultraviolet light and exhibits a specific catalytic action. Therefore, it has excellent functions such as antifouling action by removing harmful substances, decomposition and purification action of ammonia and sulfur compounds in the atmosphere, and sterilization of bacteria.
- composites obtained by forming the above thin film on a wide variety of substrates such as ceramic, metal, glass, plastic, paper, wood, fiber, and concrete are expected to be used in many fields.
- Specific examples of such composites include lighting for highways (antifouling properties), transparent soundproofing walls for motorways (antifouling properties), soundproofing walls for NOX removal (NOX capability), fluorescent lights (indoor space).
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Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98955986A EP1036826B1 (en) | 1997-12-02 | 1998-11-30 | Photocatalytic oxide composition, thin film, and composite |
AT98955986T ATE263812T1 (de) | 1997-12-02 | 1998-11-30 | Photocatalytische oxidzusammensetzung, dünnfilm und verbundmaterial |
JP2000523278A JP3796403B2 (ja) | 1997-12-02 | 1998-11-30 | 光触媒性酸化物含有組成物、薄膜および複合体 |
DE69823061T DE69823061T2 (de) | 1997-12-02 | 1998-11-30 | Photocatalytische oxidzusammensetzung, dünnfilm und verbundmaterial |
CA002312788A CA2312788C (en) | 1997-12-02 | 1998-11-30 | Photocatalytic oxide composition, thin film, and composite |
US09/585,621 US6337301B1 (en) | 1997-12-02 | 2000-06-02 | Photocatalytic metal oxide composition, thin film, and composite |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33161497 | 1997-12-02 | ||
JP9/331614 | 1997-12-02 | ||
JP13555098 | 1998-05-18 | ||
JP10/135550 | 1998-05-18 | ||
US9449298P | 1998-07-29 | 1998-07-29 | |
US60/094,492 | 1998-07-29 |
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US09/585,621 Continuation-In-Part US6337301B1 (en) | 1997-12-02 | 2000-06-02 | Photocatalytic metal oxide composition, thin film, and composite |
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WO1999028393A1 true WO1999028393A1 (fr) | 1999-06-10 |
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PCT/JP1998/005374 WO1999028393A1 (fr) | 1997-12-02 | 1998-11-30 | Composition d'oxyde photocatalytique, film mince et materiau composite |
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Country | Link |
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US (1) | US6337301B1 (ja) |
EP (1) | EP1036826B1 (ja) |
JP (1) | JP3796403B2 (ja) |
KR (1) | KR100554451B1 (ja) |
CN (1) | CN1198885C (ja) |
AT (1) | ATE263812T1 (ja) |
CA (1) | CA2312788C (ja) |
DE (1) | DE69823061T2 (ja) |
WO (1) | WO1999028393A1 (ja) |
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- 1998-11-30 DE DE69823061T patent/DE69823061T2/de not_active Expired - Lifetime
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- 1998-11-30 KR KR1020007005987A patent/KR100554451B1/ko not_active IP Right Cessation
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KR20010032701A (ko) | 2001-04-25 |
ATE263812T1 (de) | 2004-04-15 |
EP1036826B1 (en) | 2004-04-07 |
CN1290285A (zh) | 2001-04-04 |
EP1036826A4 (en) | 2001-02-07 |
US6337301B1 (en) | 2002-01-08 |
DE69823061D1 (de) | 2004-05-13 |
DE69823061T2 (de) | 2004-12-16 |
JP3796403B2 (ja) | 2006-07-12 |
CA2312788A1 (en) | 1999-06-10 |
CA2312788C (en) | 2009-01-06 |
KR100554451B1 (ko) | 2006-03-03 |
CN1198885C (zh) | 2005-04-27 |
EP1036826A1 (en) | 2000-09-20 |
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