WO2009133591A1 - Composition de revêtement photocatalytique et substrat comportant un film de revêtement - Google Patents

Composition de revêtement photocatalytique et substrat comportant un film de revêtement Download PDF

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WO2009133591A1
WO2009133591A1 PCT/JP2008/001130 JP2008001130W WO2009133591A1 WO 2009133591 A1 WO2009133591 A1 WO 2009133591A1 JP 2008001130 W JP2008001130 W JP 2008001130W WO 2009133591 A1 WO2009133591 A1 WO 2009133591A1
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Prior art keywords
coating composition
film
resin
substrate
ion exchange
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PCT/JP2008/001130
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English (en)
Japanese (ja)
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原田幸宣
上村裕一
松川輝紀
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株式会社ピアレックス・テクノロジーズ
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Priority to PCT/JP2008/001130 priority Critical patent/WO2009133591A1/fr
Publication of WO2009133591A1 publication Critical patent/WO2009133591A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • 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
    • C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
    • C09D129/10—Homopolymers or copolymers of unsaturated ethers
    • 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
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/02—Polysilicates
    • 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
    • C09D7/48—Stabilisers against degradation by oxygen, light or heat
    • 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
    • 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
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica

Definitions

  • the present invention relates to a photocatalyst coating composition, and a substrate with a coating formed by coating a substrate with a coating formed from the photocatalytic coating composition.
  • the surface becomes highly hydrophilic and the water wetting angle of the surface becomes 10 ° or less.
  • metal oxides having a photocatalytic function are known as photocatalysts. And when coating this on a base material, a glassy inorganic binder called silica sol is often used.
  • Patent Document 1 discloses a photocatalyst coating material containing silica sol and having excellent dispersion stability.
  • Patent Document 2 discloses a titanium oxide coating composition using silica sol as a binder and in which the binder does not deteriorate due to photocatalytic action.
  • Photocatalyst paints based on such photocatalysts may cause a chemical reaction when the photocatalyst comes into contact with the substrate, but usually, the coating surface of the paint is pre-coated with inorganic silica to form a barrier coat layer. This prevents the chemical reaction.
  • hydrophilic organic polymers are also used as binders for photocatalysts, but the photocatalytic function is that the organic polymer is decomposed and the coating film deteriorates because the organic matter is decomposed by exciting intense redox reactions. There was a problem of durability.
  • Patent Document 3 discloses a superpolymer composed mainly of a graft polymer composed of a repeating unit of polymer tetrafluoroethylene (Nafion (registered trademark of DuPont)) having a perfluorosulfonic acid group in the side chain.
  • a hydrophilic coating composition is disclosed. This coating composition is dissolved in, for example, alcohol, diluted, applied in a liquid state, for example, to the outer wall surface of the building, and the photocatalyst is fixed on the outer wall surface for a long period of time to keep the wall surface superhydrophilic. be able to.
  • the photocatalyst coating film is required to have flexibility, hardness, transparency and the like in addition to antifouling property and durability depending on the application and the characteristics of the substrate to be adhered.
  • the flexibility of the photocatalyst coating film so as not to impair the light transmittance. Transparency is required.
  • an object of the present invention is to provide a photocatalyst coating composition that can form a coating film having antifouling properties, flexibility, durability, and transparency.
  • the present invention provides a photocatalytic coating composition
  • a photocatalytic coating composition comprising a binder and a metal oxide having a photocatalytic function, wherein the binder comprises a perfluorosulfonic acid ion exchange resin and a perfluorocarboxylic acid ion.
  • a resin containing at least one ion exchange resin selected from exchange resins and at least one functional silane selected from alkoxysilane, chlorosilane, and silazane, or a hydrolyzate or condensate of functional silane is used. It was decided.
  • polytetrafluoroethylene having grafted sulfonic acid groups is preferable to use as the ion exchange resin.
  • a monomer of the functional silane or a 2 to 100-mer oligomer is preferably used.
  • metal oxide having a photocatalytic function examples include TiO 2 , ZnO, WO 3 , SnO 2 , SrTiO 3 , Bi 2 O 3 , and Fe 2 O 3 .
  • the photocatalyst coating composition of the present invention further includes inorganic ultraviolet absorbers such as zinc oxide, titanium oxide, and cerium oxide, organic ultraviolet absorbers such as benzotriazole, salicylic acid, and benzophenone, and light stability such as hindered amines.
  • inorganic ultraviolet absorbers such as zinc oxide, titanium oxide, and cerium oxide
  • organic ultraviolet absorbers such as benzotriazole, salicylic acid, and benzophenone
  • light stability such as hindered amines.
  • An agent may be added.
  • the substrate with a coating according to the present invention can be formed by coating the above-mentioned photocatalytic coating composition on a substrate and depositing the coating.
  • the ion exchange resin and the functional silane form a hybrid network structure or a hybrid chain structure.
  • AS acrylonitrile / styrene resin
  • ABS acrylonitrile / butadiene / styrene resin
  • a glass substrate can be used as the substrate.
  • the base material may be a metal plate or a metal plate coated with a paint containing a resin selected from a fluororesin, an acrylic resin, an acrylic silicon resin, a urethane resin, and a polyester resin.
  • the photocatalyst coating composition of the present invention includes at least one ion exchange resin selected from perfluorosulfonic acid ion exchange resins, perfluorocarboxylic acid ion exchange resins and mixtures thereof, alkoxysilane, chlorosilane, and silazane. Since at least one functional silane selected from the group consisting of hydrolyzate or condensate of functional silane and a metal oxide having a photocatalytic function is coated on the substrate, A coating film in which a photocatalytic metal oxide is dispersed in a binder is formed.
  • the binder in the coating composition contains an ion exchange resin and a functional silane.
  • the functional silane is hydrolyzed and polycondensed to form polysiloxane or polysilazane.
  • this coating film has flexibility, durability and transparency. Further, since the photocatalytic metal oxide is present on the surface of the coating film and the perfluorosulfonic acid group is also present, the antifouling property due to super hydrophilicity is exhibited over a long period of time.
  • a monomer of functional silane or a 2 to 100-mer oligomer is preferably used.
  • metal oxide having a photocatalytic function examples include TiO 2 , ZnO, WO 3 , SnO 2 , SrTiO 3 , Bi 2 O 3 , and Fe 2 O 3 .
  • inorganic ultraviolet absorbers such as zinc oxide, titanium oxide and cerium oxide
  • organic ultraviolet absorbers such as benzotriazole, salicylic acid and benzophenone
  • light stabilizers such as hindered amines
  • the substrate with a coating according to the present invention can be formed by coating the above-mentioned photocatalytic coating composition on a substrate and depositing the coating.
  • the base material acrylic, acrylic silicon, polyethylene, polycarbonate, polypropylene, polyurethane, polystyrene, polyethylene terephthalate, polyvinyl chloride, polyamide, polyacetal, AS (acrylonitrile / styrene resin), ABS (acrylonitrile / butadiene / styrene resin)
  • AS acrylonitrile / styrene resin
  • ABS acrylonitrile / butadiene / styrene resin
  • the base material is a metal plate or a metal plate coated with a coating containing a resin selected from a fluororesin, an acrylic resin, an acrylic silicon resin, a urethane resin, and a polyester resin, the antifouling is achieved.
  • a coated metal plate having excellent properties and durability can be obtained.
  • the photocatalyst coating composition according to this embodiment is obtained by mixing and dispersing a metal oxide having a photocatalytic function in a binder. Usually, a solvent is further mixed with this mixture, and the binder is dissolved in the solvent.
  • a binder containing a perfluorosulfonic acid ion exchange resin, a perfluorocarboxylic acid ion exchange resin, or an ion exchange resin made of a mixture of both, and a functional silane is used.
  • the “functional silane” is alkoxysilane, chlorosilane, or silazane, but may be a hydrolyzate or condensate thereof.
  • a typical perfluorosulfonic acid ion exchange resin is polytetrafluoroethylene in which a sulfonic acid group is graft-polymerized, and its molecular structure is as follows. (Trademark) Similar structure, containing an ether bond, and having a sulfonic acid group in the side chain.
  • Rf is a single or plural kinds of alkyl vinyl ethers, and X and Y are arbitrary natural numbers.
  • Polytetrafluoroethylene graft-polymerized with sulfonic acid groups is generally widely used as a solid electrolyte for polymer solid fuel cells.
  • “Nafion (registered trademark)” by DuPont is used. And are sold in dispersion solutions (5%, 10%, 20% polymer concentration) dissolved in a solvent.
  • perfluorocarboxylic acid ion exchange resins include Flemion from Asahi Glass Co., Ltd. This basically has a structure similar to the above Nafion, and is synthesized as a copolymer of tetrafluoroethylene and a perfluoro vinyl ether containing a carboxylic acid group.
  • alkoxysilane examples include tetraethoxysilane, tetramethoxysilane, 3-aminopropyltriethoxysilane and the like.
  • chlorosilane examples include monochlorosilane compound SiR 3 Cl, dichlorosilane compound SiR 2 Cl 2 , trichlorosilane compound SiRCl 3 and the like (where R is CH 3 , C 6 H 6 , C n H 2n + 1, etc.). Alkyl group, n is a natural number).
  • Silazane is a series of compounds composed of silicon, nitrogen, hydrogen, and the like and having a Si—N—Si bond.
  • disilazan such as hexamethyldisilazane ((CH 3 ) 3 Si) 2 NH is used.
  • These functional silanes can be hydrolyzed and condensed under mild conditions to form polysiloxane or polysilazane.
  • a functional silane monomer may be used, or a functional silane dimer to 100-mer oligomer may be used.
  • the functional silane When the functional silane is contained in the photocatalyst coating composition, the functional silane gradually hydrolyzes and condenses, and changes into a hydrolyzate and a condensate of the functional silane.
  • the metal oxide having a photocatalytic function As the metal oxide having a photocatalytic function, those generally used as a photocatalyst can be used. Specific examples thereof include titanium oxide (TiO 2 ), zinc oxide (ZnO), tungsten oxide (WO 3 ), tin oxide (SnO 2 ), strontium titanate (SrTiO 3 ), bismuth oxide (Bi 2 O 3 ), An example is iron oxide (Fe 2 O 3 ).
  • the solvent examples include a solvent capable of dissolving the above ion exchange resin, for example, methanol, ethanol, isopropanol, water, or a mixed solvent thereof.
  • the hydrophilicity of the coating film decreases, but the hardness of the coating film increases.
  • the hydrophilicity of the coating film increases, but the flexibility of the coating film decreases.
  • the photocatalytic coating composition by adjusting the ratio of the functional silane to the ion exchange resin and the ratio of the metal oxide having the photocatalytic function to the binder, a coating film having desired hydrophilicity, hardness, and flexibility is obtained. Obtainable.
  • the blending ratio of the functional silane to the ion exchange resin in the binder is preferably set to 3 to 5 times in terms of solid content, and the blending ratio of the metal oxide having a photocatalytic function to the binder is: It is preferably set within the range of 5 to 70% by weight in terms of solid content.
  • ion exchange resin 20% solution
  • 20 to 30 parts by weight of alkoxysilane 20 to 30 parts by weight of alkoxysilane
  • metal oxide particles having a photocatalytic function may be blended to constitute a photocatalyst coating composition.
  • the pH it is preferable to adjust the pH to a range of 3 to 7 by adding an alkali such as KOH or an amine such as ethanolamine to the photocatalyst coating composition. If pH exists in this range, it has moderate reactivity and stability with respect to a hydrolysis reaction and a polycondensation reaction.
  • an alkali such as KOH or an amine such as ethanolamine
  • a fluorine resin such as ETFE (a copolymer of tetrafluoroethylene C 2 F 4 and ethylene C 2 H 4 ) may be further added to the photocatalyst coating composition. By doing so, the effect which the adhesiveness with a base
  • ETFE a copolymer of tetrafluoroethylene C 2 F 4 and ethylene C 2 H 4
  • a super hydrophilic film-coated film is produced by preparing a PET film or a vinyl chloride film as a substrate, applying a photocatalyst coating composition to the film, and drying by heating or natural drying.
  • FIG. 1 is a schematic view showing a cross section of a film with a coating.
  • the film with film 10 is formed by coating a coating film 12 on the surface of a film 11 serving as a substrate.
  • the coating film 12 is configured by dispersing photocatalyst particles 13 (metal oxide having a photocatalytic function) in a binder layer 14 formed of an ion exchange resin and functional silane.
  • FIG. 2 is a diagram schematically showing the structure of the binder layer 14 formed of perfluorosulfonic acid ion exchange resin and alkoxysilane.
  • the binder in the coating composition contains an ion exchange resin and alkoxysilane, but in the coating film, the alkoxy groups of alkoxysilane are hydrolyzed and polycondensed.
  • siloxane is formed, and Si—OH groups formed by hydrolysis of alkoxysilane hydrogen bond with ether groups of perfluorosulfonic acid ion exchange resin (graft polymer). Therefore, in the binder layer 14 forming the coating film 12, a hybrid network structure or a hybrid chain structure in which an ion exchange resin and siloxane are mixed is formed.
  • this coating film 12 has flexibility, durability and transparency. Further, since the photocatalytic metal oxide particles 13 are present on the surface of the coating film 12 and perfluorosulfonic acid groups contained in the binder are also present, when the coating film 12 comes into contact with water, the water becomes sulfonic acid. They gather on the base and photocatalytic metal oxide particles 13 to exhibit super hydrophilicity, and the water droplets spread uniformly to form a thin water film.
  • the surface of the coating film 12 is kept super-hydrophilic for a long period of time, does not scatter and does not cloud light, and exhibits antifouling properties.
  • the coating composition according to the present embodiment includes the perfluorosulfonic acid ion exchange resin and the alkoxysilane, so that a hybrid network structure or a hybrid chain structure is formed in the binder layer 14.
  • the coated film 10 has the effect of combining durability and transparency in addition to super hydrophilicity.
  • the coated film 10 has both durability and transparency in addition to super hydrophilicity.
  • the photocatalytic metal oxide particles 13 are present on the surface of the coating film 12, when light hits the metal oxide particles 13, harmful substances present on the surface of the film are decomposed by a photocatalytic reaction.
  • PET polyethylene terephthalate
  • vinyl chloride film a polyethylene terephthalate (PET) film and a vinyl chloride film are used as the substrate, but the type of film is not particularly limited.
  • a glass plate or a metal plate such as a steel plate, or a metal plate coated with a paint containing a fluororesin, an acrylic resin, an acrylic silicon resin, a urethane resin, or a polyester resin. It can also be used as a substrate.
  • the shape of the substrate is not limited to a plate shape, and may be any shape, for example, a three-dimensional shape.
  • Example 1 70 parts by weight of ethanol solvent, 5 parts by weight of ethyl silicate 28 (manufactured by Colcoat, tetraethoxysilane (TEOS)), 20 parts by weight of Nafion DE2021 (manufactured by DuPont, 20% solution), and a crystalline titanium oxide slurry TKD702 (manufactured by Teika) TiO 2 : 16% solution) and 5 parts by weight were added and mixed to prepare a photocatalytic coating solution.
  • TEOS tetraethoxysilane
  • Example 2 68 parts by weight of ethanol solvent, 5 parts by weight of ethyl silicate 28 (manufactured by Colcoat), 20 parts by weight of Nafion DE2021 (manufactured by DuPont, 20% solution), and crystalline titanium oxide slurry TKD702 (manufactured by Teika, TiO 2 : 16% solution)
  • a hydroxyphenyltriazine-based UV absorber TINUVIN400 manufactured by Ciba Specialty Chemicals
  • a hindered amine light stabilizer TINUVIN123 manufactured by Ciba Specialty Chemicals
  • a photocatalytic coating solution was prepared. (Comparative Example 2) To 90 parts by weight of ethanol solvent, 10 parts by weight of ethyl silicate 28 (manufactured by Colcoat) and 5 parts by weight of crystalline titanium oxide slurry TKD702 (manufactured by Teika, TiO 2 : 16% solution) are added and mixed to form a photocatalytic coating solution. Adjusted.
  • the photocatalyst coating liquids according to Examples 1 and 2 and Comparative Examples 1 and 2 obtained as described above were respectively applied to a PET film having a thickness of 50 ⁇ m.
  • a film with a photocatalyst film was obtained by coating at a coating amount of 20 g / m 2 using a 20 bar coater and drying at 80 ° C. for 3 minutes.
  • the film thickness of the photocatalyst film was about 1 ⁇ m.
  • a strength confirmation test Using the obtained film with a photocatalyst coating, a strength confirmation test, a transparency confirmation test, and an ultraviolet transmittance confirmation test were performed as follows. ⁇ Strength confirmation test of film with photocatalyst coating> As a strength test, an adhesion test, a surface hardness test, and an elongation test were performed.
  • the adhesion test is performed in accordance with a cross-cut tape peeling test specified in JIS K 5600, and the surface hardness test is performed in accordance with a scratch hardness (pencil method) test specified in JIS K 5600, and an elongation test.
  • the test results are shown in Table 1.
  • Example 1 in which TEOS and Nafion are mixed as a binder, the surface hardness of the photocatalyst-covered film is higher and the adhesiveness is superior to Comparative Example 1 in which the binder is Nafion alone. I understand that.
  • the surface hardness of the photocatalyst-covering film is also higher in Example 1 than Comparative Example 1 and higher than that of the PET film substrate.
  • Comparative Example 2 where the binder is composed only of ethyl silicate, the adhesion and surface hardness of the photocatalyst-covering film are good, but the elongation percentage is low. In addition, the crack generate
  • the photocatalyst-covered film of Example 1 has a transmittance close to that of the PET film, and has higher transparency than that coated with the photocatalyst coating composition of Comparative Example 1.
  • the photocatalyst-covering film according to Example 1 has good adhesion, surface hardness, elongation, and transparency because Nafion and TEOS form a hybrid network structure or chain structure. it is conceivable that.
  • Example 2 where the ultraviolet absorber was added, the ultraviolet transmittance of the photocatalyst-coated film was reduced by about 30% compared to Example 1 where no ultraviolet absorber was added.
  • Example 2 As a method for testing the self-cleaning performance of the photocatalytic material, there is a wet degradation performance test by evaluating the degradation of JIS 1703-2 methylene blue reagent. In accordance with this test method, a decomposition performance confirmation test was performed on Example 1 and Comparative Example 1. The results are shown in Table 4.
  • the degradation activity index is 5 or more in this test, it is said to have a photocatalytic function, but as shown in Table 4, the degradation activity index is 9.0 for both Example 1 and Comparative Example 1, It turns out that it has a photocatalytic function.
  • Example 3 60 parts by weight of ethanol solvent, 5 parts by weight of ethyl silicate 28 (Colcoat), 30 parts by weight of Nafion DE2021 (DuPont, 20% solution) and 5 parts by weight of crystalline titanium oxide slurry TKD702 (Taika, TiO 2 : 16% solution) Were added and mixed to prepare a photocatalytic coating solution.
  • the photocatalyst coating liquids of Example 3 and Comparative Example 4 obtained as described above were designated A polyester steel sheet with a photocatalyst coating was obtained by applying a coating amount of 30 g / m 2 on a polyester baked steel sheet using a 10 bar coater and drying at 100 ° C. for 5 minutes.
  • the film thickness of the photocatalyst film was 2 to 3 ⁇ m.
  • the obtained photocatalyst-coated polyester steel sheet was subjected to an adhesion test and a surface hardness test as follows.
  • ⁇ Strength confirmation test of polyester steel sheet with photocatalyst coating> The adhesion test was performed in accordance with a cross-cut tape peeling test specified in JIS K 5600, and the surface hardness test was performed in accordance with a scratch hardness (pencil method) test specified in JIS K 5600. Table 5 shows the test results.
  • the photocatalyst-covering film according to Example 3 has good adhesion and surface hardness because Nafion and TEOS form a hybrid network structure or chain structure.

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Abstract

La présente invention concerne une composition de revêtement photocatalytique pouvant former un film de revêtement qui présente d’excellentes propriétés anti-encrassement et une excellente durabilité ainsi qu’une souplesse, une dureté et une transparence excellentes. La composition de revêtement photocatalytique selon l’invention contient un oxyde métallique à fonction photocatalytique qui est mélangé à un liant et y est dispersé, un solvant étant en outre ajouté de sorte que le liant soit dissous dans le solvant. À titre de liant, il est fait usage d’un liant contenant une résine échangeuse d’ions comprenant une résine échangeuse d’ions à base d’acide perfluorosulfonique, une résine échangeuse d’ions à base d’acide perfluorocarboxylique ou un mélange de celles-ci, et d’un composé silane choisi parmi un alcoxysilane, un hydrolysat de celui-ci et un produit condensé de celui-ci.
PCT/JP2008/001130 2008-04-30 2008-04-30 Composition de revêtement photocatalytique et substrat comportant un film de revêtement WO2009133591A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013022799A (ja) * 2011-07-20 2013-02-04 Konica Minolta Holdings Inc ガスバリア性フィルム及びガスバリア性フィルムの製造方法
JP2018076443A (ja) * 2016-11-10 2018-05-17 サカタインクス株式会社 アルコキシシラン加水分解組成物、及び、その製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002645A1 (fr) * 1993-07-14 1995-01-26 Asahi Glass Company Ltd. Composition resineuse de revetement
WO1998046688A1 (fr) * 1997-04-14 1998-10-22 Daikin Industries, Ltd. Composition de couchage resistant aux intemperies
JP2001152090A (ja) * 1999-11-29 2001-06-05 Jsr Corp 防汚性物品用コーティング組成物および防汚性物品
JP2006233073A (ja) * 2005-02-25 2006-09-07 Pialex Technologies Corp 光触媒塗料、該塗料を塗布した鋼板およびテント地
JP2006233072A (ja) * 2005-02-25 2006-09-07 Pialex Technologies Corp 光触媒塗料、該塗料を塗布した室内内装品および壁紙
JP2008007653A (ja) * 2006-06-30 2008-01-17 Kansai Paint Co Ltd 水性樹脂組成物及び該水性樹脂組成物を含む水性塗料組成物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002645A1 (fr) * 1993-07-14 1995-01-26 Asahi Glass Company Ltd. Composition resineuse de revetement
WO1998046688A1 (fr) * 1997-04-14 1998-10-22 Daikin Industries, Ltd. Composition de couchage resistant aux intemperies
JP2001152090A (ja) * 1999-11-29 2001-06-05 Jsr Corp 防汚性物品用コーティング組成物および防汚性物品
JP2006233073A (ja) * 2005-02-25 2006-09-07 Pialex Technologies Corp 光触媒塗料、該塗料を塗布した鋼板およびテント地
JP2006233072A (ja) * 2005-02-25 2006-09-07 Pialex Technologies Corp 光触媒塗料、該塗料を塗布した室内内装品および壁紙
JP2008007653A (ja) * 2006-06-30 2008-01-17 Kansai Paint Co Ltd 水性樹脂組成物及び該水性樹脂組成物を含む水性塗料組成物

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013022799A (ja) * 2011-07-20 2013-02-04 Konica Minolta Holdings Inc ガスバリア性フィルム及びガスバリア性フィルムの製造方法
JP2018076443A (ja) * 2016-11-10 2018-05-17 サカタインクス株式会社 アルコキシシラン加水分解組成物、及び、その製造方法

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