WO2008148363A2 - An agent for surface finishing of objects and strustures by a coating layer with a photocatalytic and self-cleaning effect and respective manufacturing process - Google Patents
An agent for surface finishing of objects and strustures by a coating layer with a photocatalytic and self-cleaning effect and respective manufacturing process Download PDFInfo
- Publication number
- WO2008148363A2 WO2008148363A2 PCT/CZ2008/000062 CZ2008000062W WO2008148363A2 WO 2008148363 A2 WO2008148363 A2 WO 2008148363A2 CZ 2008000062 W CZ2008000062 W CZ 2008000062W WO 2008148363 A2 WO2008148363 A2 WO 2008148363A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- agent
- precursor
- per
- objects
- surface finishing
- Prior art date
Links
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 16
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 10
- 238000004140 cleaning Methods 0.000 title claims abstract description 7
- 230000000694 effects Effects 0.000 title claims abstract description 7
- 239000011247 coating layer Substances 0.000 title claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000002243 precursor Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 230000007062 hydrolysis Effects 0.000 claims abstract description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 8
- 150000002739 metals Chemical class 0.000 claims abstract description 6
- -1 siloxanes Chemical class 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000809 air pollutant Substances 0.000 claims abstract description 5
- 231100001243 air pollutant Toxicity 0.000 claims abstract description 5
- 150000002148 esters Chemical class 0.000 claims abstract description 5
- 150000004760 silicates Chemical class 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 238000001782 photodegradation Methods 0.000 claims abstract description 4
- 230000003197 catalytic effect Effects 0.000 claims abstract description 3
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- 230000005855 radiation Effects 0.000 claims abstract description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 2
- 229910052693 Europium Inorganic materials 0.000 claims description 2
- 229910052779 Neodymium Inorganic materials 0.000 claims description 2
- 229910052772 Samarium Inorganic materials 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 2
- VBLQNYINPWASGP-UHFFFAOYSA-M oxygen(2-) titanium(3+) chloride Chemical compound [O-2].[Ti+3].[Cl-] VBLQNYINPWASGP-UHFFFAOYSA-M 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- ZWYDDDAMNQQZHD-UHFFFAOYSA-L titanium(ii) chloride Chemical compound [Cl-].[Cl-].[Ti+2] ZWYDDDAMNQQZHD-UHFFFAOYSA-L 0.000 claims description 2
- 230000001052 transient effect Effects 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 239000003153 chemical reaction reagent Substances 0.000 description 9
- 239000012467 final product Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 239000003973 paint Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- CCTFMNIEFHGTDU-UHFFFAOYSA-N 3-methoxypropyl acetate Chemical compound COCCCOC(C)=O CCTFMNIEFHGTDU-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 235000005811 Viola adunca Nutrition 0.000 description 3
- 240000009038 Viola odorata Species 0.000 description 3
- 235000013487 Viola odorata Nutrition 0.000 description 3
- 235000002254 Viola papilionacea Nutrition 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910010066 TiC14 Inorganic materials 0.000 description 1
- 229910010062 TiCl3 Inorganic materials 0.000 description 1
- 229910003074 TiCl4 Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- JNXJAWNLJWEVIJ-UHFFFAOYSA-N [dimethyl(propyl)silyl]oxy-dimethyl-trimethylsilyloxysilane Chemical compound CCC[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C JNXJAWNLJWEVIJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1618—Non-macromolecular compounds inorganic
-
- 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
- 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
-
- B01J35/39—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
-
- 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
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- This invention regards an agent for surface finishing of objects and structures by a coating layer with a photocatalytic and self-cleaning effect, above all with the catalytic effects of air pollutants' photodegradation as well as the process of this agent's manufacturing.
- bulding materials there are known eg concrete mixtures containing (as an additive) the photocatalytic active titanium dioxide.
- organo-metallic precursors containing particles of photocatalytic active compounds above all of the titanium dioxide; regarding this, there is known usage of precursors which originated by homogenous hydrolysis of the soluble salts (chlorides) of titanium by urea or thioacetamide in aqueous medium.
- the precursors gained can only be used as the active component of respective paint, not as a paint itself.
- This agent for surface finishing of objects and structures by a coating layer with a photocatalytic and self-cleaning effect as per invention is to a large extent instrumental in removing the aforementioned deficiencies of the status quo in this field.
- This invention stipulates in the fact that it consists of a precursor which iis based on a dispersion of at least one compound from the group of metals' oxids and salts in nanocristalline form, being visible even in the visible band of the solar radiation spectrum; the precursor said is a hydrolysis product of respective metal's soluble salt in the medium of silicates, silicic esters, siloxanes or silicon alcoxides.
- this can be above all the titanium oxide, ferric oxide or zirconium dioxide.
- This metal oxide can be further supported by transient metals Oxides, particularly of Fe, Co, Ni, Mn, Cr, V, Ta, Nb and W, and/or lanthanoide oxides, particularly of La, Ce, Nd, Y, Sm, Eu and Dy.
- transient metals Oxides particularly of Fe, Co, Ni, Mn, Cr, V, Ta, Nb and W
- lanthanoide oxides particularly of La, Ce, Nd, Y, Sm, Eu and Dy.
- the agent for surface finishing of objects and structures as per invention is at the same time a precursor and a paint with final qualities gained after spontaneous curing.
- this can be advantageously the titanium(III) chloride, titanium dichloride or titanium oxide chloride.
- a new composite material can be created which is applicable onto any surface type, with final qualities after spontaneous curing. It is strong, perfectly washable, with a self-cleaning or photocatalytic effect due to presence of metal ocide nanoparticles (above all the titanium oxide ones), and-due to chosen combination of various anorganic polymeres-is also suitable for anti-graffiti systems, being also usable as a precursor in the production of more sofisticated paints with other binding systems.
- This agent can be applicated by brushing, spraying or rolling when (after a sufficient dilution) also thin transparent layers can be obtained.
- the surfaces coated in this way have the advantage thet they gain (as against existing transparent paint films), after being illuminated, a highly wettable surface, and due to the photocatalytic effect the organic inpurities or air pollutants adhering to this surface shall be decomposed.
- TMOS tetramethoxisilane
- MTEOS methyltriethoxisilane
- VTEOS vinyltriethoxisilane
Abstract
An agent for surface finishing of objects and structures by a coating layer with a photocatalytic and self-cleaning effect, above all with the catalytic effects of air pollutants´ photodegradation. It is created by a precursor based on a dispersion of at least one compound from the group of metals´ oxids and salts in nanocristalline form, which is photoactive even in the visible band of the solar radiation spektrum. The precursor said being a hydrolysis product of respective metal´s soluble salt in the medium of silicates, silicic esters, siloxanes or silicon alcoxides.
Description
AN AGENT FOR SURFACE FINISHING OF OBJECTS AND STRUCTURES BY A COATING LAYER WITH A PHOTOCATALYTIC AND SELF- CLEANING EFFECT AND RESPECTIVE MANUFATURING PROCESS
The field of technology
This invention regards an agent for surface finishing of objects and structures by a coating layer with a photocatalytic and self-cleaning effect, above all with the catalytic effects of air pollutants' photodegradation as well as the process of this agent's manufacturing.
This field's actual state of things
Nowadays, many agents serving as paints and coating materials for structures (particularly for external buildings and structures) with effects of air pollutants' photodegradation are known.
As regards the bulding materials, there are known eg concrete mixtures containing (as an additive) the photocatalytic active titanium dioxide.
From the point of view of receptures for external buildings and structures, as advantageous appears particularly using of organo-metallic precursors containing particles of photocatalytic active compounds, above all of the titanium dioxide; regarding this, there is known usage of precursors which originated by homogenous hydrolysis of the soluble salts (chlorides) of titanium by urea or thioacetamide in aqueous medium. However, the precursors gained can only be used as the active component of respective paint, not as a paint itself. From this perspective, as more hopeful appears to be to use transparent layers based on polyvinylalcohol or hydroxyethylacrylate ie precursors which were created by hydrolysis of dilutable salts of titanium in presence of respevtive polymers; but even these ones themselves cannot provide the required mechanical and chemical resistance of the paint exposed to external influences.
Simultaneously, many ways how to prepare and use the transparent particles of metals are known. Such particles of metal oxids can be utilized in many fields eg as pigments in the paints industry, in cosmetics as a protective factor against the UV rays, preparing thin layers, etc. To prepare transparent titanium dioxide particles (or transparent layers), advantageously eg the controlled hydrolysis of titanium alcoxids is used. Another method is a plasmatic or magnetron coating of titanium dioxid in thin layers.
These ways, however, are disadvantageous due to their complexity, labour-consumption and necessity to warm up the final product up to min 400 0C.
Nature of the invention
This agent for surface finishing of objects and structures by a coating layer with a photocatalytic and self-cleaning effect as per invention is to a large extent instrumental in removing the aforementioned deficiencies of the status quo in this field.
This invention's nature insists in the fact that it consists of a precursor which iis based on a dispersion of at least one compound from the group of metals' oxids and salts in nanocristalline form, being visible even in the visible band of the solar radiation spectrum; the precursor said is a hydrolysis product of respective metal's soluble salt in the medium of silicates, silicic esters, siloxanes or silicon alcoxides.
As to the photoactive compound which is present in the precursor said as transparent particles, this can be above all the titanium oxide, ferric oxide or zirconium dioxide.
This metal oxide can be further supported by transient metals Oxides, particularly of Fe, Co, Ni, Mn, Cr, V, Ta, Nb and W, and/or lanthanoide oxides, particularly of La, Ce, Nd, Y, Sm, Eu and Dy.
The agent for surface finishing of objects and structures as per invention is at the same time a precursor and a paint with final qualities gained after spontaneous curing.
The way how to manufacture this agent for surface finishing of objects and structures as per invention insists in a hydroysis of respective metal's soluble salts under lab or elevated temperature (advantageously up to 150 °C) in the medium of silicates, silicic esters, siloxanes or silicon alcoxides.
As to the soluble metal salt, this can be advantageously the titanium(III) chloride, titanium dichloride or titanium oxide chloride.
By the aforementioned way, a new composite material can be created which is applicable onto any surface type, with final qualities after spontaneous curing. It is strong, perfectly washable, with a self-cleaning or photocatalytic effect due to presence of metal ocide nanoparticles (above all the titanium oxide ones), and-due to chosen combination of various anorganic polymeres-is also suitable for anti-graffiti systems, being also usable as a precursor in the production of more sofisticated paints with other binding systems.
This agent can be applicated by brushing, spraying or rolling when (after a sufficient dilution) also thin transparent layers can be obtained. The surfaces coated in this way have the advantage thet they gain (as against existing transparent paint films), after being illuminated, a highly wettable surface, and due to the photocatalytic effect the organic inpurities or air pollutants adhering to this surface shall be decomposed.
Examples of this invention's practical execution
Example 1
To 100 ml cone, hydrochlorid acid dissolve 1Og metallic titanium and add to the total volume 100 ml the distilled water (hereinafter referred to as Solution 1). To 100 ml tetraethylorthosilicate (TEOS) add 50 ml of the Solution 1. After mixing, the reagent solution goes blue-violet. The solution is to be intensively stirred under the lab temperature. As it is decolourized, stop stirring. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 2
To 100 ml tetramethoxisilane (TMOS) add 20 ml of the 10% TiC14 in HCl. After mixing together, the reagent solution remains clear. The solution is to be intensively stirred under the lab temperature. Created transparent articles are checked by the laser ray passage. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 3
To 100 ml methyltriethoxisilane (MTEOS) add 10 ml TiOCl. After mixing together, the reagent solution remains clear. The solution has to be intensively stirred under the lab temperature. Created transparent articles are checked by the laser ray passage. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 4
To 100 ml vinyltriethoxisilane (VTEOS) add 50 ml of the Solution 1. After mixing, the reagent solution goes blue-violet. The solution is to be intensively stirred
under the lab temperature. As it is decolourized, stop stirring. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 5
To 100 ml of the Solution 1 add a 10% tetraethoxisilane solution in ethanol and methoxypropylacetate with 0.7% siloxane in the 800 ml volume. After mixing, the reagent solution goes blue- violet. The solution is to be intensively stirred under the lab temperature. As it is decolourized, stop stirring. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 6
To 100 ml of a 20% tetraethoxisilane solution add 300 ml ethanol and 50 ml of a 15% Solution 1. The reagent solution is to be intensively stirred under the lab temperature. As it is decolourized, stop stirring. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 7
To 100 ml of a 20% tetraethoxisilane solution add 2,5 g 3-(polyoxyethylene) propylheptamethyl trisiloxane in 300 ml ethanol and 100 ml of a 15% TiCl3 in HCl (Sigma -Aldrich). The reagent solution was intensively stirred under the lab temperature till decolourizing.
Example 8
To 100 ml of a 10% TiCl4 solution v HCl add 10% of a tetraethoxisilane solution in ethanol and methoxypropylacetate with 0.7 % siloxane in the 800 ml volume. The reagent solution has to be intensively stirred under the lab temperature. Created transparent articles are checked by the laser ray passage. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 9
To 100 ml of a 10% TiOCl solution in HCl add 10% of a tetraethoxisilane solution m ethanol and methoxypropylacetate with 0.7 % siloxane in the 800 ml volume. The reagent solution has to be intensively stirred under the lab temperature.
Created transparent articles are checked by the laser ray passage. The final product is a clear opalescent liquid containing transparent TiO2 particles.
Example 10
To 100 ml of a 10% ferric chloride solution add a 5-10% of a tetraethoxisilane solution in ethanol and methoxypropylacetate with 0.7 % siloxane in the 800 ml volume; then discolouring begins, going (from the original rusty brown) clear.
Claims
1. An agent for surface finishing of objects and structures by a coating layer with a photocatalytic and self-cleaning effect, above all with the catalytic effects of air pollutants' photodegradation, comprising the fact that it is created by a precursor based on a dispersion of at least one compound from the group of metals' oxids and salts in nanocristalline form, which is photoactive even in the visible band of the solar radiation spectrum the precursor said being a hydrolysis product of respective metal's soluble salt in the medium of silicates, silicic esters, siloxanes or silicon alcoxides.
2. An agent as per Claim 1, comprising the titanium dioxide as the photoactive compound present in the precursor in the form of transparent particles.
3. An agent as per Claim 1, comprising the ferric oxide as the photoactive compound present in the precursor in the form of transparent particles.
4. An agent as per Claim 1, comprising the zirconium dioxide as the photoactive compound present in the precursor in the form of transparent particles.
5. An agent as per Claims 2 through 4, comprising as the photoactive compound present in the precursor in the form of transparent particles the respective metal oxide which is supported by transient metals'oxides, particularly of Fe, Co, Ni, Mn, Cr, V, Ta, Nb, W, and/or lanthanoide oxides, particularly of La, Ce, Nd, Y, Sm, Eu, Dy.
6. A method of production of the agent for surface finishing of objects and structures as per Claim 1, comprising a hydrolysis of respective metal salt solution under the lab or elevated temperature in the medium of silicates, silicic esters, siloxanes and silicon alcoxides.
7. A method as per Claim 6, comprising carrying out the hydrolysis under the temperature up to 150 0C.
8. A method as per Claim 6, comprising as the parent soluble salt of metal the titanium(III) chloride, titanium dichloride or titanium oxide chloride.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ20070395A CZ301227B6 (en) | 2007-06-07 | 2007-06-07 | Composition for surface treatment of objects and building elements by applying protective layer exhibiting photocatalytic and self-cleaning activity and process for preparing and application thereof |
| CZPV2007-395 | 2007-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2008148363A2 true WO2008148363A2 (en) | 2008-12-11 |
| WO2008148363A3 WO2008148363A3 (en) | 2009-04-16 |
Family
ID=40094220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2008/000062 WO2008148363A2 (en) | 2007-06-07 | 2008-06-06 | An agent for surface finishing of objects and strustures by a coating layer with a photocatalytic and self-cleaning effect and respective manufacturing process |
Country Status (2)
| Country | Link |
|---|---|
| CZ (1) | CZ301227B6 (en) |
| WO (1) | WO2008148363A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009121312A1 (en) * | 2008-04-03 | 2009-10-08 | Rokospol A.S. | Coating and/ or building material intended for object and building treatment with photo-catalytic and self-cleaning effect |
| CN102807263A (en) * | 2011-11-08 | 2012-12-05 | 北京联合大学生物化学工程学院 | Method for degrading 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane pesticide in water by photocatalysis |
| US20200181911A1 (en) * | 2016-07-15 | 2020-06-11 | Firestone Building Products Company, Llc | Silicone membranes |
| EP3851498A4 (en) * | 2018-09-13 | 2022-06-15 | Sumitomo Osaka Cement Co., Ltd. | Anti-fouling coating film, glass ceramic product, coating material for forming anti-fouling coating film, and method for producing glass ceramic product |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423886B (en) * | 2017-08-23 | 2022-01-04 | 上海汽车集团股份有限公司 | Vehicle Alcanara fabric and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1041123A1 (en) * | 1997-12-16 | 2000-10-04 | Catalysts & Chemicals Industries Co., Ltd. | Coating fluid for forming hard coating and substrates covered with hard coating |
| EP1323673A2 (en) * | 2001-12-27 | 2003-07-02 | Tokuyama Corporation | Silica-metal oxide composite particles and method of producing the same |
| US20040110012A1 (en) * | 2002-10-01 | 2004-06-10 | Peter Bier | Coating composition and a process for its preparation |
| DE102004029303A1 (en) * | 2004-06-17 | 2006-01-12 | Ems-Chemie Ag | Preparation of nanoscale titanium dioxide-dispersion, useful in e.g. lacquers, comprises acid-catalyst hydrolysis of nano-titanium dioxide in presence of polar aprotic solvent and reaction of the dispersion with alkyltrialkoxysilane |
| US20060020052A1 (en) * | 2002-07-26 | 2006-01-26 | Akira Tsujimoto | Photocatalyst-containing silicone resin composition and coated article having cured coating film therefrom |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478826A (en) * | 2002-08-27 | 2004-03-03 | �Ϻ��뿵�Ƽ���չ����˾ | Visible light photo catalyzed photo catalyst pigment and its manufacturing method |
| US20040258581A1 (en) * | 2003-06-19 | 2004-12-23 | Di Wei | Bifunctional manganese oxide/titanium dioxide photocatalyst/thermocatalyst for improving indoor air quality |
| US20050147776A1 (en) * | 2004-01-02 | 2005-07-07 | Meng-Song Cheng | Bottle container with protective membrane |
| FI116297B (en) * | 2004-01-07 | 2005-10-31 | Kemira Pigments Oy | Method for surface treatment |
| CZ17545U1 (en) * | 2007-04-12 | 2007-05-28 | Card Line S.R.O. | Electronic information system |
-
2007
- 2007-06-07 CZ CZ20070395A patent/CZ301227B6/en not_active IP Right Cessation
-
2008
- 2008-06-06 WO PCT/CZ2008/000062 patent/WO2008148363A2/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1041123A1 (en) * | 1997-12-16 | 2000-10-04 | Catalysts & Chemicals Industries Co., Ltd. | Coating fluid for forming hard coating and substrates covered with hard coating |
| EP1323673A2 (en) * | 2001-12-27 | 2003-07-02 | Tokuyama Corporation | Silica-metal oxide composite particles and method of producing the same |
| US20060020052A1 (en) * | 2002-07-26 | 2006-01-26 | Akira Tsujimoto | Photocatalyst-containing silicone resin composition and coated article having cured coating film therefrom |
| US20040110012A1 (en) * | 2002-10-01 | 2004-06-10 | Peter Bier | Coating composition and a process for its preparation |
| DE102004029303A1 (en) * | 2004-06-17 | 2006-01-12 | Ems-Chemie Ag | Preparation of nanoscale titanium dioxide-dispersion, useful in e.g. lacquers, comprises acid-catalyst hydrolysis of nano-titanium dioxide in presence of polar aprotic solvent and reaction of the dispersion with alkyltrialkoxysilane |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009121312A1 (en) * | 2008-04-03 | 2009-10-08 | Rokospol A.S. | Coating and/ or building material intended for object and building treatment with photo-catalytic and self-cleaning effect |
| CN102807263A (en) * | 2011-11-08 | 2012-12-05 | 北京联合大学生物化学工程学院 | Method for degrading 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane pesticide in water by photocatalysis |
| CN102807263B (en) * | 2011-11-08 | 2013-12-11 | 北京联合大学生物化学工程学院 | Method for degrading 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane pesticide in water by photocatalysis |
| US20200181911A1 (en) * | 2016-07-15 | 2020-06-11 | Firestone Building Products Company, Llc | Silicone membranes |
| EP3851498A4 (en) * | 2018-09-13 | 2022-06-15 | Sumitomo Osaka Cement Co., Ltd. | Anti-fouling coating film, glass ceramic product, coating material for forming anti-fouling coating film, and method for producing glass ceramic product |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ301227B6 (en) | 2009-12-16 |
| WO2008148363A3 (en) | 2009-04-16 |
| CZ2007395A3 (en) | 2008-12-17 |
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