WO2013035343A1 - 抗ウイルス性を有するアルミニウム部材およびその製造方法 - Google Patents
抗ウイルス性を有するアルミニウム部材およびその製造方法 Download PDFInfo
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- WO2013035343A1 WO2013035343A1 PCT/JP2012/005695 JP2012005695W WO2013035343A1 WO 2013035343 A1 WO2013035343 A1 WO 2013035343A1 JP 2012005695 W JP2012005695 W JP 2012005695W WO 2013035343 A1 WO2013035343 A1 WO 2013035343A1
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- Prior art keywords
- aluminum
- antiviral
- pores
- aluminum member
- compound
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 129
- 230000002155 anti-virotic effect Effects 0.000 title claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000011148 porous material Substances 0.000 claims abstract description 71
- 241000700605 Viruses Species 0.000 claims abstract description 60
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 34
- 150000002484 inorganic compounds Chemical class 0.000 claims abstract description 33
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 15
- 238000007743 anodising Methods 0.000 claims abstract description 7
- 230000000840 anti-viral effect Effects 0.000 claims description 115
- 239000010419 fine particle Substances 0.000 claims description 81
- -1 silane compound Chemical class 0.000 claims description 32
- 239000011248 coating agent Substances 0.000 claims description 31
- 238000000576 coating method Methods 0.000 claims description 31
- 239000010949 copper Substances 0.000 claims description 31
- 229910000077 silane Inorganic materials 0.000 claims description 27
- 239000011230 binding agent Substances 0.000 claims description 26
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- 229920005989 resin Polymers 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 25
- 239000000126 substance Substances 0.000 claims description 24
- 230000001699 photocatalysis Effects 0.000 claims description 20
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 19
- 239000005749 Copper compound Substances 0.000 claims description 17
- 150000001880 copper compounds Chemical class 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 16
- 150000002497 iodine compounds Chemical class 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 229910052709 silver Inorganic materials 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 229910021589 Copper(I) bromide Inorganic materials 0.000 claims description 6
- PDZKZMQQDCHTNF-UHFFFAOYSA-M copper(1+);thiocyanate Chemical compound [Cu+].[S-]C#N PDZKZMQQDCHTNF-UHFFFAOYSA-M 0.000 claims description 6
- 239000011630 iodine Substances 0.000 claims description 6
- 229910052740 iodine Inorganic materials 0.000 claims description 6
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 3
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 101100189618 Caenorhabditis elegans pdi-2 gene Proteins 0.000 claims description 2
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- 108010003533 Viral Envelope Proteins Proteins 0.000 abstract description 2
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- 239000002244 precipitate Substances 0.000 description 27
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- 239000010407 anodic oxide Substances 0.000 description 23
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 22
- 239000002245 particle Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 20
- 229910021595 Copper(I) iodide Inorganic materials 0.000 description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 15
- 229910021612 Silver iodide Inorganic materials 0.000 description 13
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 13
- 239000007864 aqueous solution Substances 0.000 description 12
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 11
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- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 description 9
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- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 9
- 125000000524 functional group Chemical group 0.000 description 8
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
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- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
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- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 4
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/23—Solid substances, e.g. granules, powders, blocks, tablets
- A61L2/235—Solid substances, e.g. granules, powders, blocks, tablets cellular, porous or foamed
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
- C25D5/44—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
Definitions
- the present invention relates to an antiviral aluminum member which adsorbs a virus and inactivates it in a short time and has a porous anodized film formed by anodization.
- norovirus a type of virus that causes non-bacterial acute gastroenteritis, can cause food poisoning by shellfish such as oysters, and can also be transmitted through dust from infected human feces and vomit, or from dried products. It has become a major social problem because it causes contact infections to patients and healthcare workers through the environment including equipment such as door knobs, handrails, walls and air conditioners. ing. Accordingly, there is a strong demand for the development of a material having antiviral properties that can adsorb various viruses and can inactivate the adsorbed viruses efficiently.
- the antiviral material examples include a virus inactivating sheet using a composite containing an inorganic porous crystal carrying an antiviral metal ion such as silver ion or copper ion inside a resin (Patent Document 1).
- a virus inactivating sheet in which inorganic fine particles having an antiviral effect are supported on a substrate Patent Document 2.
- the method containing an inorganic porous crystal inside the resin can be applied to a fibrous fabric, but cannot be applied to a door knob, a handrail, or a fin material of an air conditioner.
- the method using the inorganic fine particles having an antiviral effect is high in versatility and effect, when the particle size of the inorganic fine particles is reduced, the inorganic fine particles are aggregated with each other, so that the efficiency is deteriorated or the aggregate and the base are reduced. There is a problem that the adhesion with the material is lowered and the material is peeled off.
- viruses can be classified into viruses that do not have an envelope, such as norovirus, and viruses that have an envelope, such as influenza virus. May not. Furthermore, in the case of door knobs, handrails, air conditioner fins, etc., virus adhering to the infected person or splashes of coughing floats in the air and adheres to these surfaces, so body fluids such as sweat and saliva In some cases, lipids and proteins contained in sucrose may adhere. Therefore, it is preferable that the virus can be inactivated even in an environment where lipids and proteins are present.
- the present invention can inactivate the virus in a short time even if these viruses are attached and suppress secondary infection, regardless of the presence or absence of the envelope of the virus, a door knob or handrail,
- An object of the present invention is to provide a useful antiviral aluminum member for use in wheelchairs, bed members, pipe chairs, window sashes, bicycle frames, building materials, air conditioner fins, and the like.
- the first invention is a member that can inactivate the attached virus, and is obtained by anodizing aluminum or an aluminum alloy. It is an aluminum member having antiviral properties characterized by the presence of an inorganic compound having.
- the second invention is the surface according to the first invention, wherein the surface of the anodized film in which the inorganic compound having antiviral properties is present in the pores contains an inorganic compound having antiviral properties and a binder resin.
- a third invention is the antiviral aluminum member according to the second invention, wherein the surface coating further includes inorganic fine particles different from the antiviral inorganic compound. .
- a fourth invention is an aluminum member having antiviral properties according to the third invention, wherein the inorganic fine particles contained in the surface film are a photocatalytic substance.
- a fifth invention is the aluminum member having antiviral properties according to the fourth invention, wherein the photocatalytic substance is a visible light responsive photocatalytic substance.
- a sixth invention is the aluminum member having antiviral properties according to any one of the third to fifth inventions, wherein the surface of the inorganic fine particles contained in the surface film is coated with a silane monomer. It is.
- a seventh invention is an aluminum member having antiviral properties according to any one of the second to sixth inventions, wherein the binder resin is a silane compound.
- an eighth invention is characterized in that, in any one of the first to seventh inventions, the antiviral inorganic compound is at least one of a monovalent copper compound and an iodine compound. It is an aluminum member having viral properties.
- a ninth invention is the eighth invention, wherein the monovalent copper compound is at least one of a chloride, an acetic acid compound, a sulfide, an iodine compound, a bromide, a peroxide, an oxide, and a thiocyanide. It is the aluminum member which has antiviral property characterized by these.
- a tenth invention is the ninth invention, wherein the monovalent copperide is at least one of CuCl, CuBr, Cu (CH 3 COO), CuSCN, Cu 2 S, Cu 2 O, and CuI. It is the aluminum member which has antiviral property characterized by being.
- the iodine compound is CuI, AgI, SbI 3 , IrI 4 , GeI 4 , GeI 2 , SnI 2 , SnI 4 , TlI, PtI. 2 , PtI 4 , PdI 2 , BiI 3 , AuI, AuI 3 , FeI 2 , CoI 2 , NiI 2 , ZnI 2 , HgI and InI 3 It is a member.
- an aluminum material of aluminum or an aluminum alloy is subjected to an anodizing treatment to form pores on the surface, and an electric material is formed in the pores of the aluminum material in which the pores are formed. It is a method for producing an antiviral aluminum member characterized by depositing an antiviral inorganic compound by chemical treatment.
- the thirteenth invention is the twelfth invention, wherein at least one of Cu and Ag is deposited in the pores by electrochemical treatment, and at least one of Cu and Ag is deposited in the pores.
- the aluminum material is immersed in an electrolytic solution containing iodine ions, and CuI or AgI, which is an inorganic compound having antiviral properties, is deposited in the pores by electrochemical treatment of the immersed aluminum material. It is a manufacturing method of the aluminum member which has virality.
- the present invention it is possible to provide a highly durable aluminum member that can maintain antiviral properties for a long period of time even when used for a door knob, a handrail, or a fin material of an air conditioner.
- FIG. 1 is a schematic enlarged view of a part of the cross section of the antiviral aluminum member 100 according to the first embodiment of the present invention.
- the aluminum member 100 is formed by anodizing aluminum or an aluminum alloy so that the anodized film 2 is formed on the surface portion.
- the anodized film 2 is so-called porous alumina, and a large number of pores 3 having openings on the surface are formed.
- On the bottom side of the pores 3 on the side opposite to the surface on which the opening of the aluminum member 100 is provided), there is the original aluminum or aluminum alloy metal layer 1 that has not been anodized.
- FIG. 1 is a schematic enlarged view of a part of the cross section of the antiviral aluminum member 100 according to the first embodiment of the present invention.
- the aluminum member 100 is formed by anodizing aluminum or an aluminum alloy so that the anodized film 2 is formed on the surface portion.
- the anodized film 2 is so-called porous alumina, and a large number of pores 3
- the precipitate 4 containing the inorganic compound which has antiviral property is deposited and filled in the pore 3 of the anodic oxide film 2.
- FIG. 1 a diagram in which the precipitate 4 deposited in the pore 3 is completely filled is shown, but the deposit 4 deposited in the pore 3 is at least the pore 3. It only has to be deposited at the bottom or part of the substrate.
- Aluminum or aluminum alloys include aluminum and aluminum alloys specified in JISH4000, clad materials in which aluminum is laminated on steel plates, and aluminum thin films formed on the resin surface by physical methods such as ion plating and sputtering. The formed material is used.
- An anodized film 2 having pores 3 is formed on the surface of the aluminum or aluminum alloy by a known anodizing method.
- the anodic oxide film 2 having the pores 3 is, for example, an aqueous solution containing acids such as sulfuric acid, phosphoric acid, chromic acid, and oxalic acid, sulfosalicylic acid, sulfophthalic acid, sulfomaleic acid, and sulfoitaconic acid.
- anodic oxide film 2 having the pores 3 is not particularly limited, but is preferably about 1 ⁇ m to 50 ⁇ m.
- the pores 3 of the anodized film 2 of the present invention are filled with a precipitate 4 containing an inorganic compound having antiviral properties, and the precipitate 4 is preferably a monovalent copper compound and an iodine compound. At least one of the following.
- Examples of the monovalent copper compound include Cu 2 O, CuOH, Cu 2 S, CuSCN, CuBr, Cu (CH 3 COO), and CuI.
- the aluminum member on which the anodic oxide film 2 is formed is immersed in an aqueous solution containing copper ions to obtain a platinum electrode or a carbon electrode.
- As a counter electrode Cu 2 O or CuOH can be electrochemically deposited and filled in the pores 3 by applying an AC or DC voltage.
- the pores are first dissolved in an aqueous solution in which these fine particles are suspended.
- the aluminum member on which the anodic oxide coating 2 having 3 is formed is immersed.
- the target compound can be filled by electrophoresis into the pores 3 of the anodic oxide coating 2 by applying an AC or DC voltage with a platinum electrode or a carbon electrode as a counter electrode.
- the average particle diameter of the monovalent copper compound fine particles is preferably about 1/5 or less of the diameter of the pores 3 of the anodic oxide coating 2.
- an average particle diameter means a volume average particle diameter.
- the iodine compound CuI, AgI, SbI 3, IrI 4, GeI 4, GeI 2, SnI 2, SnI 4, TlI, PtI 2, PtI 4, PdI 2, BiI 3, AuI, AuI 3, FeI 2 CoI 2 , NiI 2 , ZnI 2 , HgI and InI 3 are used.
- a method for precipitating these compounds in the pores 3 of the anodic oxide film 2 an aluminum member on which the anodic oxide film 2 having the pores 3 is immersed in a dispersion of nanoparticles of these iodine compounds is used as a counter electrode. It is obtained by applying an alternating current or direct current voltage using platinum or carbon as an electrode and filling it by electrophoresis.
- AgI will be described as another example in which an iodine compound is deposited on an aluminum member on which an anodized film 2 having pores 3 is formed.
- Ag is chemically and electrochemically deposited in the pores 3 of the anodic oxide film 2, and then a DC voltage is applied in a solution containing iodine ions using a platinum electrode or a carbon electrode as a counter electrode.
- a DC voltage is applied in a solution containing iodine ions using a platinum electrode or a carbon electrode as a counter electrode.
- Ag and iodine ions that have precipitated in the pores 3 of the anodic oxide coating 2 react to synthesize AgI in the pores 3 of the anodic oxide coating 2, and finally the anode 3 filled with AgI.
- the oxide film 2 can be obtained.
- CuI will be described.
- Cu 2 O or CuOH containing metallic copper is deposited on the aluminum member by electrochemical treatment in the pores 3 of the anodized film 2.
- it is immersed in an aqueous solution containing iodine ions, and a direct current voltage is applied between the aluminum member and the counter electrode using a platinum electrode or a carbon electrode as a counter electrode.
- a direct current voltage is applied between the aluminum member and the counter electrode using a platinum electrode or a carbon electrode as a counter electrode.
- the deposited metal copper and a part of Cu 2 O and CuOH react with iodine ions, so that CuI can be synthesized and filled in the pores 3 of the anodized film 2.
- Other iodine compounds may be precipitated by the same method.
- the precipitates 4 having antiviral properties are deposited and filled in the pores 3, the virus attached to the aluminum member 100 can be quickly inactivated. Furthermore, the precipitate 4 is hardly soluble in water, and is physically or mechanically bonded and closely adhered to the pores 3 of the anodized film 2 by precipitation. Therefore, the precipitate 4 is not detached from the pores 3 without performing a special treatment for immobilizing the antiviral component, and it is ensured in the pores 3 of the anodized film 2 for a long period of time. A fixed state is maintained. Therefore, according to this embodiment, the aluminum member which can exhibit an antiviral effect stably for a long period of time can be provided.
- a potential control agent capable of controlling the surface potential (negative charge) in the plus direction is present on the surface of the aluminum member 100 of the present embodiment on the anodized film 2 side.
- the surface potential of the virus is negative regardless of the type of genome, the presence or absence of the envelope, and the like, and thus the precipitate 4 having antiviral properties of the aluminum member 100 is exposed on the anodic oxide film 2 side.
- the presence of a potential control agent that controls the potential to the plus side on the surface makes the surface potential positive for the virus and attracts the virus. If the virus can be attracted to the anodized film 2 side, the virus can easily come into contact with the precipitate 4 having antiviral properties, and the antiviral effect can be further enhanced.
- the potential control agent is not particularly limited as long as it can control the surface potential of the aluminum member 100 in the plus direction.
- nonionic, anionic, and cationic surfactants are preferable, and a cationic surfactant is particularly preferable.
- FIG. 2 is a schematic enlarged view of a part of the cross section of the antiviral aluminum member 200 of the second embodiment of the present invention. Similar to the first embodiment, an anodized film 2 having pores 3 formed by anodic oxidation is formed on the surface of the metal layer 1 of aluminum or an alloy thereof, and the anti-viral properties are imparted to the pores 3. A precipitate 4 containing an inorganic compound is deposited and filled. Further, on the surface of the anodic oxide coating 2, a surface coating 10 made of inorganic fine particles 5 made of an antiviral inorganic compound and a resin binder 6 is formed.
- resin binder 6 a known binder can be used. Specific examples include polyester resin, amino resin, epoxy resin, polyurethane resin, acrylic resin, water-soluble resin, vinyl resin, fluororesin, silicon resin, fiber resin, phenol resin, xylene resin, toluene resin, and natural resin. May be dry oils such as castor oil, linseed oil and tung oil.
- inorganic fine particles 5 made of an antiviral inorganic compound are dispersed.
- the inorganic fine particles 5 at least one of a monovalent copper compound and an iodine compound can be used.
- Examples of the monovalent copper compound used as the inorganic fine particles 5 include chloride, acetic acid compound, sulfide, iodide, bromide, peroxide, oxide, and thiocyanide and monovalent iodine compound.
- Examples of chlorides, acetic acid compounds, sulfides, iodides, bromides, peroxides, oxides, and thiocyanides include CuCl, Cu (CH 3 COO), Cu 2 S, CuI, CuBr, Cu 2 O, And CuSCN may be used.
- Examples of the iodine compound used as the inorganic fine particles 5 include CuI, AgI, SbI 3 , IrI 4 , GeI 4 , GeI 2 , SnI 2 , SnI 4 , TlI, PtI 2 , PtI 4 , PdI 2 , BiI 3 , AuI, AuI 3 , FeI 2 , CoI 2 , NiI 2 , ZnI 2 , HgI and InI 3 may be used.
- the particle size of the inorganic fine particles 5 made of these antiviral inorganic compounds is preferably 1 nm or more and 5 ⁇ m or less. If it is less than 1 nm, the antiviral effect becomes unstable over time, and if it is more than 5 ⁇ m, the holding power by the resin binder 6 is reduced and the strength of the coating is reduced, which is not preferable.
- the inorganic fine particles 5 are preferably dispersed in the surface coating 10 made of the resin binder 6 in an amount of 0.1% by mass to 80% by mass, more preferably 0.1% by mass to 60.0% by mass. It is.
- the inorganic fine particle 5 is less than 0.1% by mass, the action of inactivating the virus is reduced as compared with the case of being within the range.
- the binding property (the action that can be retained) of the resin binder 6 is lowered and is within the range.
- the surface coating 10 composed of the inorganic fine particles 5 and the resin binder 6 is more easily separated from the anodic oxide coating 2 than the case.
- the surface coating 10 composed of the resin binder 6 and the inorganic fine particles 5 of the second embodiment preferably contains a nonionic, anionic or cationic surfactant to enhance the dispersibility of the inorganic fine particles 5.
- the surfactant is not particularly limited as long as it is contained in the resin binder 6 so that the surface potential (negative charge) of the surface coating 10 can be controlled in the positive direction.
- the cationic surfactant is used. Is preferred.
- the surface potential of the resin is generally negative. And as above-mentioned, the surface potential of a virus is also negative, irrespective of the kind of genome, the presence or absence of an envelope, etc.
- the surface potential of the surface coating 10 is controlled in the positive direction by containing the surfactant in the surface coating 10 together with the inorganic fine particles 5 made of the inorganic compound having antiviral properties. It becomes easy to adsorb
- the surface coating 10 of the second embodiment has other antiviral composition, antibacterial composition, antifungal composition, antiallergen composition, catalyst, antireflective material, and heat shielding properties as necessary. Functional fine particles such as materials may be added.
- a method for manufacturing the aluminum member 200 of the present embodiment will be described. First, an anodized film 2 having a large number of pores 3 formed on the surface of aluminum or an aluminum alloy is formed by the method described in the first embodiment. Thereafter, a precipitate 4 containing an inorganic compound having antiviral properties is deposited in the pores 3 of the anodized film 2. Then, the anti-viral inorganic fine particles 5 pulverized by a jet mill or the like, and functional fine particles are mixed with an arbitrary resin binder 6 to form a slurry, which is then applied to the surface of the aluminum member 200 and dried. Is done.
- the aluminum member 200 of the present embodiment when used for a building material, an aluminum sash, etc., even if the surface wears depending on the use environment and the antiviral effect is reduced, the anode Since monovalent copper ions are released from the precipitate 4 deposited in the oxide film 2, antiviral properties can be maintained for a long time.
- FIG. 3 is a schematic enlarged view of a part of the cross section of the antiviral aluminum member 300 of the third embodiment of the present invention.
- the surface of the anodic oxide film 2 having the pores 3 in which the precipitates 4 containing the inorganic compound having antiviral properties are deposited and filled is provided with antiviral properties.
- a surface coating 30 containing inorganic fine particles 5 made of an inorganic compound having functional groups, functional fine particles 7 for imparting functions other than antiviral properties, and a binder 8 made of a silane compound is formed.
- a known hard coat agent or the like may be added to further improve the strength of the surface coating 30 depending on the use environment.
- an inorganic oxide can be used as the functional fine particles 7 used in the third embodiment of the present invention.
- the inorganic oxide include single inorganic oxides such as SiO 2 , Al 2 O 3 , TiO 2 , ZrO 2 , SnO 2 , Fe 2 O 3 , Sb 2 O 3 , WO 3 , and CeO 2. It is done.
- composite oxides may be used, for example, SiO 2 ⁇ Al 2 O 3 , SiO 2 ⁇ B 2 O 3 , SiO 2 ⁇ P 2 O 5 , SiO 2 ⁇ TiO 2 , SiO 2 ⁇ ZrO 2 , Al 2 O 3 ⁇ TiO 2 , Al 2 O 3 ⁇ ZrO 2 , Al 2 O 3 ⁇ CaO, Al 2 O 3 ⁇ B 2 O 3 , Al 2 O 3 ⁇ P 2 O 5 , Al 2 O 3 ⁇ CeO 2 , Al 2 O 3 ⁇ Fe 2 O 3 , TiO 2 ⁇ CeO 2 , TiO 2 ⁇ ZrO 2 , SiO 2 ⁇ TiO 2 ⁇ ZrO 2 , Al 2 O 3 ⁇ TiO 2 ⁇ ZrO 2 , SiO 2 ⁇ Al 2 O 3 ⁇ TiO 2, such as SiO 2 ⁇ TiO 2 ⁇ CeO 2 and the like.
- These functional fine particles 7 having an average particle diameter of about 1 nm to 5 ⁇ m are used, and the surface coating 30 is used by filling about 1 to 80% by mass.
- the surface coating 30 is used by filling about 1 to 80% by mass.
- a photocatalytic substance may be used as the functional fine particles 7.
- a photocatalytic substance is a particle that exhibits a photocatalytic function by irradiating light having a wavelength having energy equal to or greater than the band gap of the substance.
- known metal compound semiconductors such as titanium oxide, zinc oxide, tungsten oxide, iron oxide, strontium titanate, cadmium sulfide, and cadmium selenide can be used singly or in combination of two or more.
- titanium oxide, zinc oxide, and tungsten oxide are particularly preferable as the functional fine particles 7 used in the third embodiment of the present invention because of their low toxicity and excellent safety.
- the crystal structure of titanium oxide as a photocatalytic substance may be a rutile type, anatase type, brookite type, or any other amorphous type in the present invention.
- some of the oxygen atoms and TiO 2-X N X substituted with a nitrogen atom is the anion of a titanium oxide, TiO 2-X in which an oxygen atom deviates significantly from missing the stoichiometric ratio (X is 1.0 or less ), Titanium oxide supporting copper or iron compound nanoparticles, tungsten oxide supporting gold or silver nanoparticles, tungsten oxide doped with iron ions or copper ions, zinc oxide with gold A photocatalytic substance doped with iron or potassium and having photocatalytic activity even under visible light may be used.
- metals such as vanadium, copper, nickel, cobalt, chromium, or compounds thereof, or palladium, rhodium, ruthenium, silver, platinum, and precious metals and their metal compounds such as gold, CuCl, CuBr, Cu (CH 3 COO), CuSCN, Cu 2 S, Cu 2 O, and may contain a copper compound, monovalent, such as CuI.
- examples of the binder 8 made of a silane compound used in the third embodiment of the invention include vinyltrichlorosilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltriacetoxysilane, N- ⁇ - (N-vinylbenzyl).
- silane oligomer examples include commercially available KC-89S, KR-500, X-40-9225, KR-217, KR-9218, KR-213, and KR-510 manufactured by Shin-Etsu Chemical Co., Ltd. These silane oligomers may be used alone or in combination of two or more, and may be used in combination with one or more of binders 8 made of a silane compound.
- the binder 8 made of these silane compounds is used by being filled in the surface coating 30 by about 1 to 50% by mass.
- a method for manufacturing the aluminum member 300 of this embodiment will be described.
- an anodized film 2 having a large number of pores 3 formed on the surface of aluminum or an aluminum alloy is formed, and the pores 3 contain an inorganic compound having antiviral properties.
- Precipitate 4 is deposited.
- the inorganic fine particles 5 made of an antiviral inorganic compound are pulverized into nano-order, sub-micron-order, and micron-order particles by a jet mill or a hammer mill.
- the pulverization is not particularly limited, and both dry and wet processes can be used.
- a solvent such as water, methanol, ethanol, toluene, Grind with a jet mill or hammer mill.
- the slurry thus obtained is applied to the surface of the aluminum member 300 by a known method such as a dipping method, a spray method, or a screen printing method, and the solvent is removed by heat drying or the like as necessary, followed by reheating.
- the binder 8 made of a silane compound and a known hard coat agent are chemically bonded to the surface of the aluminum member 300 by graft polymerization using, or graft polymerization by irradiation with radiation such as infrared rays, ultraviolet rays, electron beams and ⁇ rays.
- the inorganic fine particles are chemically bonded to the surface of the anodic oxide film 2 via the binder 8 made of a silane compound and a known hard coat agent to form a three-dimensional crosslinked structure. is doing. Therefore, since antiviral components such as monovalent copper ions released from the precipitate 4 deposited in the pores 3 pass through the microscopic gaps of the crosslinked structure and emerge on the surface, the surface coating 30 The antiviral agent of both the inorganic fine particles 5 having antiviral properties and the precipitate 4 acts on the virus, and an aluminum member having higher virus inactivating performance can be provided.
- the functional fine particles selected from various inorganic compounds can improve the strength of the surface coating 30 or impart a photocatalytic function, thereby obtaining effects other than antiviral properties.
- the functional fine particles 7 included in the surface coating 30 may not be added when the antiviral aluminum member 300 of the present invention is used in an environment where film strength and corrosion resistance are unnecessary.
- FIG. 4 is a schematic enlarged view of a part of the cross section of the antiviral aluminum member 400 of the fourth embodiment of the present invention.
- it has antiviral property which consists of an inorganic compound on the surface of the porous anodic oxide film 2 with which the deposit 4 containing the inorganic compound which has the same antiviral property as 1st Embodiment was filled.
- a surface film 40 including the inorganic fine particles 5 and the functional fine particles 7 coated with the silane monomer 9 having a functional group capable of chemically bonding is formed.
- X-Si (OR) n (n is an integer of 1 to 3).
- a silane monomer represented by the general formula: X is a functional group that reacts with an organic substance, such as a vinyl group, an epoxy group, a styryl group, a methacrylo group, an acryloxy group, an isocyanate group, a polysulfide group, an amino group, a mercapto group, or a chloro group.
- OR is an alkoxy group such as a hydrolyzable methoxy group or ethoxy group, and the three functional groups related to the silane monomer 9 may be the same or different. These alkoxy groups composed of methoxy groups and ethoxy groups are hydrolyzed to form silanol groups.
- This silanol group, vinyl group, epoxy group, styryl group, methacrylo group, acryloxy group, isocyanate group, and a functional group having an unsaturated bond are known to have high reactivity.
- the aluminum member 400 having antiviral properties according to the fourth embodiment of the present invention forms a matrix by chemically bonding the inorganic fine particles 7 through such a highly reactive silane monomer 9, and at the same time, By firmly bonding to the anodic oxide film 2 having the holes 3, an aluminum member 400 having excellent strength and antiviral properties can be provided.
- a method for manufacturing the anti-virus aluminum member 400 of this embodiment will be described. First, by the method described in the first embodiment, an anodized film 2 having a large number of pores 3 formed on the surface of aluminum or an aluminum alloy is formed, and the pores 3 contain an inorganic compound having antiviral properties. Precipitate 4 is deposited. Next, the above-described silane monomer 9 having a functional group capable of chemically bonding is added to a dispersion obtained by dispersing the functional fine particles 7 in a solvent, and the surface of the functional fine particles 7 is subjected to a dehydration condensation reaction while being heated under reflux. The silane monomer 9 is chemically bonded.
- the amount of the silane monomer 9 may be 0.01% by mass to 40.0% by mass with respect to the mass of the functional fine particles 7 although it depends on the average particle diameter of the functional fine particles 7.
- Dispersed in a solvent are functional fine particles 7 having a surface coated with a silane monomer and inorganic fine particles 5 having antiviral properties composed of an inorganic compound pulverized by the method described in the third embodiment. The resulting dispersion is further pulverized with a jet mill or a hammer mill to obtain a slurry.
- the slurry thus obtained is applied to the surface of the aluminum member 400 by a known method such as a dipping method, a spray method, or a screen printing method, and if necessary, the solvent is removed by heating and drying, followed by reheating.
- the functional group capable of chemically bonding the silane monomer 9 is formed on the surface of the aluminum member 400 (anodized film 2) by graft polymerization with silane, or graft polymerization (radiation graft polymerization) by irradiation with infrared rays, ultraviolet rays, electron beams, ⁇ rays or the like. Chemically bonded to
- the antiviral inorganic fine particles 5 made of an inorganic compound are three-dimensionally cross-linked by the chemical bonding of the silane monomers 9 bonded to the surfaces of the functional fine particles 7. Since it is held in the mesh of the structure in a fitted state, the surface is not covered with a binder or the like. Therefore, almost all of the inorganic fine particles 5 can be in contact with the virus, and the probability of contact with the virus is increased, so that the virus can be inactivated efficiently even with a small amount.
- viruses can be inactivated regardless of the type of genome, the presence or absence of an envelope, and the like.
- the thus obtained antiviral aluminum member can be used in a film (foil) shape, a plate shape, a linear shape, a cylindrical shape, and various other shapes.
- door knobs, sashes for handrails, entrance doors, window frames, air conditioner filters, air purifier filters, vacuum cleaner filters, ventilation fan filters, vehicle filters, air conditioning filters, screen door nets It can be applied to various fields such as nets for poultry houses, fin materials for air conditioners, wall materials and ceiling materials for operating rooms and bathrooms, wheelchairs, bed materials, and safety cabinets for virus testing.
- Example 1 First, as a pretreatment, an aluminum plate (JISH1050 material) was immersed in a 5% aqueous sodium hydroxide solution heated to 50 ° C. for 60 seconds and then immersed in a 5% nitric acid aqueous solution to neutralize and remove the alkali. Next, in an electrolytic solution containing 1.5 mol of sulfuric acid at 20 ° C, the pretreated aluminum plate is used as the anode, and a platinum electrode is used as the counter electrode (cathode), and anodization is performed at a current density of 1.5 A / dm 2 for 20 minutes. As a result, a porous anodic oxide film having a thickness of about 8 ⁇ m was formed on the surface of the aluminum plate.
- Example 1 an aluminum plate with a porous anodized film with a thickness of about 8 ⁇ m is immersed in an aqueous solution containing 40 g / L copper sulfate and 10 g / L boric acid, and a 10 V AC voltage using a platinum electrode as the counter electrode.
- a platinum electrode as the counter electrode.
- Example 1 three types of aluminum members were produced with treatment times (voltage application time) of 1 minute, 5 minutes, and 10 minutes.
- An example in which the processing time is 1 minute is referred to as Example 1-1
- Example 1-2 an example in which the processing time is 5 minutes
- Example 1-3 an example in which the processing time is 10 minutes is referred to as Example 1-3.
- Example 2 a resin containing inorganic fine particles having antiviral properties is applied to the surface of the aluminum member of Example 1.
- copper (I) iodide powder manufactured by Nippon Kagaku Sangyo Co., Ltd.
- an inorganic fine particle having antiviral properties with an average particle size of 140 nm using a dry pulverizer Nano Jet Mizer (manufactured by Aisin Nano Technologies, Inc., NJ-100B)
- NATOCO Co., Ltd., Arco SP two-component reactive silicon acrylic resin paint
- Example 3 Silver iodide powder (manufactured by Wako Pure Chemical Industries, Ltd.) instead of copper iodide powder, which is inorganic fine particles having antiviral properties used in Example 2, is a dry pulverizer NanoJet Mizer (manufactured by Aisin Nanotechnology Co., Ltd.) NJ-100B), an aluminum plate having antiviral properties of Example 3 was produced in the same manner and under the same conditions as in Example 2 except that the particles were crushed to an average particle size of 800 nm.
- Example 4 inorganic fine particles having antiviral properties and photocatalyst fine particles, which are functional fine particles, are fixed on the surface of the aluminum member of Example 1.
- MPT-625 manufactured by Ishihara Sangyo Co., Ltd.
- the fine particles of copper (I) iodide having an average particle size of 45 nm and anatase-type titanium oxide fine particles doped with iron ions, a visible light responsive photocatalytic substance having an average particle size of 82 nm, are included.
- a slurry was obtained. 40% by mass of tetramethoxysilane (Shin-Etsu Chemical Co., Ltd., KBM-04) is added as a binder to the solid content of the resulting slurry, and methanol is added to adjust the solid content concentration to 5% by mass. did.
- the amount of copper iodide (I) fine particles added is determined by drying on the substrate surface (on the anodized film) and removing the solvent, and then solid content on the substrate, that is, copper (I) iodide fine particles and visible light. It adjusted so that it might become 1.0 mass% with respect to the sum total of the anatase type titanium oxide fine particle which doped the iron ion which is a response type photocatalyst substance.
- Example 5 In Example 5, the antiviral properties of inorganic fine particles and functional fine particles coated with a silane monomer are fixed on the surface of the antiviral aluminum member of Example 1.
- the copper iodide powder used in Example 2 and methacryloxypropyltrimethoxysilane manufactured by Shin-Etsu Chemical Co., Ltd., KBM-503, which is a silane monomer having an unsaturated bond, were dehydrated and condensed by a conventional method.
- Zirconium oxide particles covalently bonded to the surface (Nippon Denko Co., Ltd., PCS), pre-dispersed in methanol, crushed and dispersed in a bead mill, copper iodide (I) particles having an average particle diameter of 45 nm, A slurry containing zirconium oxide particles having an average particle diameter of 37 nm coated with methacryloxypropyltrimethoxysilane was obtained.
- the amount of copper (I) iodide fine particles added is such that the solid content on the substrate, that is, copper iodide (I) fine particles and methacryloxy after drying on the substrate surface (on the anodized film) and removing the solvent. It adjusted so that it might become 1.0 mass% with respect to the sum total of the zirconium oxide microparticles
- Example 6 30% by mass of the zirconium oxide fine particles bonded with methacryloxypropyltrimethoxysilane in Example 5 was combined with methacryloxypropyltrimethoxysilane, anatase-type titanium oxide fine particles (manufactured by Teika Co., Ltd., AMT).
- the aluminum plate having antiviral properties of Example 6 was produced in the same manner and under the same conditions as in Example 5 except for changing to -100).
- Example 7 Anatase-type titanium oxide fine particles (MPT, manufactured by Ishihara Sangyo Co., Ltd.) in which 30% by mass of the zirconium oxide fine particles bonded with methacryloxypropyltrimethoxysilane of Example 5 were doped with iron ions as a visible light responsive photocatalytic substance.
- the aluminum plate having antiviral properties of Example 7 was produced in the same manner and under the same conditions as in Example 5 except that the procedure was changed to -625).
- Example 8 The antiviral properties of Example 8 were the same as in Example 5 except that commercially available silver iodide (Wako Pure Chemical Industries, Ltd.) was used instead of the copper iodide powder used in Example 5. The aluminum plate which has this was produced.
- Example 9 In Example 9, after forming an anodic oxide film having pores on the surface of an aluminum plate under the same conditions as in Example 1, an AC voltage of 10 V was applied in an aqueous solution containing copper sulfate under the same conditions as in Example 1. By applying for 2 minutes and then immersing in an aqueous solution containing 0.05 mol / L of potassium iodide and applying a DC voltage at a current density of 0.1 A / dm 2 for 3 minutes using a platinum electrode as the counter electrode, A precipitate containing copper (I) iodide was synthesized and deposited in the pores of the anodized film to prepare an aluminum plate having antiviral properties.
- Example 10 an anodized film having pores was formed on the surface of an aluminum plate under the same conditions as in Example 1, and then immersed in an aqueous solution containing 5 g / L of silver nitrate. By applying an AC voltage for 10 minutes, a precipitate containing silver was deposited in the pores of the anodized film. Next, an aluminum plate material in which silver-containing precipitates are filled in the pores of the anodized film is immersed in an aqueous solution containing 0.05 mol / L of potassium iodide, and a platinum electrode is used as a counter electrode, and 0.17 A / dm 2 is used. By applying a DC voltage at a current density for 3 minutes, a precipitate containing silver iodide was synthesized and deposited in the pores of the anodized film to produce an antiviral aluminum plate.
- Example 11 silver iodide having an average particle diameter of 2 nm was prepared by forming an anodized film having pores on the surface of an aluminum plate under the same conditions as in Example 1, and then mixing silver nitrate and potassium iodide.
- a platinum electrode is used as a counter electrode and a current density of 0.1 A / dm 2 is applied for 10 minutes to deposit silver iodide-containing precipitates in the pores of the anodized film, thus providing antiviral properties.
- An aluminum plate was produced.
- Comparative Example 1 The aluminum plate (in which the treatment for precipitating the copper compound in the pores) formed with the anodic oxide film produced in Example 1 was used as Comparative Example 1.
- Comparative Example 2 A commercially available pure copper plate (JISH3100 manufactured by Yuko Shokai Co., Ltd.) was immersed in methanol at room temperature for 1 minute to remove the natural oxide film on the surface of the copper plate, and then dried at room temperature to obtain Comparative Example 2.
- Table 1 shows the configurations of Examples 1 to 11 and Comparative Examples 1 and 2.
- Example 9 (Analysis of aluminum anodized film by wide-angle X-ray diffraction)
- the aluminum plate having antiviral properties of Example 1, Example 9 and Example 10 was analyzed for substances at a depth of about 6 ⁇ m from the surface using a wide-angle X-ray diffractometer (manufactured by Rikag Corporation).
- the peak of 2 ⁇ 36.5 ° derived from the (111) plane of Cu 2 O
- the peak of 2 ⁇ 42.4 ° derived from the (200) plane
- the 4 cm ⁇ 4 cm samples of each Example and Comparative Example were placed in a plastic petri dish and 0.1 mL of the virus solution was dropped and allowed to act at room temperature for 30 minutes, with the upper surface of the sample being covered with a PET film (4 cm ⁇ 4 cm). by covering with 4 cm), was allowed to act .30 minutes were constant contact area of the virus solution and the sample, the SCDLP medium was added 1900Myueru, was washed out virus by pipetting.
- reaction sample 10 -2 Diluted with MEM dilution until 10 -5 (10-fold serial dilution) MDCK cells or CRFK cells cultured in a petri dish were inoculated with 100 ⁇ L of sample solution and allowed to stand for 60 minutes to transfer the virus to the cells After adsorbing After overlaying 0.7% agar medium and culturing in 34 ° C, 5% CO 2 incubator for 48 hours, fix formalin and methylene blue, count the number of plaques formed, and infect the virus (PFU / 0.1mL) (PFU: PLAQUE-FORMING UNIT) The value obtained when the virus solution was added without using the sample of the example was used as a control, and the results are shown in Table 2.
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Abstract
Description
図1は本発明の第1実施形態の抗ウイルス性を有するアルミニウム部材100の断面の一部を模式的に拡大した図である。アルミニウム部材100は、アルミニウムまたはアルミニウム合金を陽極酸化することにより、表面部分に陽極酸化皮膜2が形成されたものである。そして、陽極酸化皮膜2はいわゆるポーラスアルミナであり、表面に開口部を有する多数の細孔3が形成されている。細孔3の底部側(アルミニウム部材100の開口部がある面とは反対側)には、陽極酸化されていない元のアルミニウムまたはアルミニウム合金の金属層1が存在する。そして本発明の実施形態では、図1に示すように、陽極酸化皮膜2の細孔3に抗ウイルス性を有する無機化合物を含む析出物4が析出されて充填されている。なお、図1では理解をしやすくするために細孔3に析出させた析出物4が完全に充填した図で示しているが、細孔3に析出させた析出物4は、少なくとも細孔3の底部もしくは一部に析出していればよい。
続いて本発明の第2実施形態の抗ウイルス性を有するアルミニウム部材200について図2を用いて詳述する。
続いて本発明の第3実施形態の抗ウイルス性を有するアルミニウム部材300について図3を用いて詳述する。
続いて本発明の第4実施形態の抗ウイルス性を有するアルミニウム部材400について図4を用いて詳述する。
(実施例1)
まず前処理としてアルミニウム板材(JISH1050材)を50℃に加温した5%水酸化ナトリウム水溶液に60秒浸漬した後、5%硝酸水溶液に浸漬してアルカリ分を中和し除去した。次に、1.5molの硫酸を含む20℃の電解液中で、前処理したアルミニウム板材を陽極とし、対極(陰極)に白金電極を用い、1.5A/dm2の電流密度で20分間陽極酸化することで、アルミニウム板材表面に厚さ約8μmの多孔質の陽極酸化皮膜を形成した。
実施例2は、実施例1のアルミニウム部材の表面に抗ウイルス性を有する無機微粒子を含む樹脂を塗布したものである。まず、抗ウイルス性を有する無機微粒子として、ヨウ化銅(I)粉末(日本化学産業社製)を乾式粉砕装置ナノジェットマイザー(株式会社アイシンナノテクノロジーズ製、NJ-100B)にて平均粒子径140nmに粉砕し、二液反応型のシリコンアクリル樹脂塗料(ナトコ株式会社製、アルコSP)に対して、乾燥後の塗膜中における含有量が5質量%になるように添加し、ボールミルにて分散した。また、界面活性剤としてオクタデシルアミン酢酸塩(日油株式会社製、ニッサンカチオンSA)を塗料の固形分に対して0.2質量%添加した。次に、実施例1-3で作製した、陽極酸化皮膜の細孔に処理時間10分間の条件で一価の銅化合物を含む析出物を析出させたアルミニウム板の表面に、上記のヨウ化銅(I)微粒子と界面活性剤を分散したシリコンアクリル樹脂塗料をスプレーにて塗布し、160℃、20分間乾燥することで、実施例2の抗ウイルス性を有するアルミニウム板を作製した。
実施例2で用いた抗ウイルス性を有する無機微粒子であるヨウ化銅粉末の代わりにヨウ化銀の粉末(和光純薬工業株式会社製)を乾式粉砕装置ナノジェットマイザー(株式会社アイシンナノテクノロジーズ製、NJ-100B)にて平均粒子径800nmに解砕した以外は実施例2と同様の方法及び条件で実施例3の抗ウイルス性を有するアルミニウム板を作製した。
実施例4は、実施例1のアルミニウム部材の表面に抗ウイルス性を有する無機微粒子と、機能性微粒子である光触媒微粒子を固定したものである。実施例2で用いたヨウ化銅粉末と、可視光応答型光触媒物質である鉄イオンをドーピングしたアナターゼ型酸化チタン微粒子(石原産業株式会社製、MPT-625)をメタノールにプレ分散後、ビーズミルにて解砕・分散し、平均粒子径45nmのヨウ化銅(I)と、平均粒子径82nmの可視光応答型光触媒物質である鉄イオンをドーピングしたアナターゼ型酸化チタン微粒子とのそれぞれの微粒子を含むスラリーを得た。得られたスラリーの固形分に対してバインダーとしてテトラメトキシシラン(信越化学工業株式会社製、KBM-04)を40質量%添加し、固形分濃度が5質量%になるようにメタノールを加えて調整した。また、ヨウ化銅(I)の微粒子の添加量は、基体表面(陽極酸化皮膜上)で乾燥して溶剤を除去した後に、基体上における固形分、すなわちヨウ化銅(I)微粒子および可視光応答型光触媒物質である鉄イオンをドーピングしたアナターゼ型酸化チタン微粒子の合計に対し1.0質量%になるように調整した。
実施例5は、実施例1の抗ウイルス性を有するアルミニウム部材の表面に、抗ウイルス性を有する無機微粒子と、シランモノマーで被覆された機能性微粒子と、を固定したものである。まず、実施例2で用いたヨウ化銅粉末と、不飽和結合部を有するシランモノマーであるメタクリロキシプロピルトリメトキシシラン(信越化学工業株式会社製、KBM-503)を通常の方法により脱水縮合させ表面に共有結合させた酸化ジルコニウム粒子(日本電工株式会社製、PCS)と、をメタノールにプレ分散後、ビーズミルにて解砕・分散し、平均粒子径45nmのヨウ化銅(I)粒子と、メタクリロキシプロピルトリメトキシシランで被覆した平均粒子径37nmの酸化ジルコニウム粒子とを含むスラリーを得た。得られたスラリーの固形分に対してバインダーとしてテトラメトキシシラン(信越化学工業株式会社製、KBM-04)を20質量%添加し、固形分濃度が5質量%になるようにメタノールを加えて調整した。また、ヨウ化銅(I)の微粒子の添加量は、基体表面(陽極酸化被膜上)で乾燥して溶剤を除去した後に、基体上における固形分、すなわちヨウ化銅(I)微粒子およびメタクリロキシプロピルトリメトキシシランが結合した酸化ジルコニウム微粒子の合計に対し1.0質量%になるように調整した。
実施例5のメタクリロキシプロピルトリメトキシシランが結合した酸化ジルコニウム微粒子のうち30質量%分を、メタクリロキシプロピルトリメトキシシランが結合した、光触媒物質であるアナターゼ型酸化チタン微粒子(テイカ株式会社製、AMT-100)に変えた以外は、実施例5と同様の方法及び条件で実施例6の抗ウイルス性を有するアルミニウム板を作製した。
実施例5のメタクリロキシプロピルトリメトキシシランが結合した酸化ジルコニウム微粒子のうち30質量%分を、可視光応答型光触媒物質である鉄イオンをドーピングしたアナターゼ型酸化チタン微粒子(石原産業株式会社製、MPT-625)に変えた以外は、実施例5と同様の方法及び条件で実施例7の抗ウイルス性を有するアルミニウム板を作製した。
実施例5で用いたヨウ化銅粉末の代わりに市販のヨウ化銀(和光純薬工業株式会社製)を用いた以外は、実施例5と同様の方法及び条件で実施例8の抗ウイルス性を有するアルミニウム板を作製した。
実施例9は、実施例1と同様の条件でアルミニウム板材の表面に細孔を有する陽極酸化皮膜を形成した後、実施例1と同様の条件で硫酸銅を含む水溶液中で10Vの交流電圧を2分間印加し、次に、ヨウ化カリウム0.05mol/Lを含む水溶液に浸漬して、対極に白金電極を用いて0.1A/dm2の電流密度で直流の電圧を3分間印加することにより、ヨウ化銅(I)を含む析出物を陽極酸化皮膜の細孔内に合成して析出させ、抗ウイルス性を有するアルミニウム板を作製した。
実施例10は、実施例1と同様の条件でアルミニウム板材の表面に細孔を有する陽極酸化皮膜を形成した後、硝酸銀5g/Lを含む水溶液に浸漬し、対極に白金電極を用いて8Vの交流電圧を10分間印加することにより銀を含む析出物を陽極酸化皮膜の細孔に析出させた。次に、陽極酸化皮膜の細孔に銀を含む析出物を充填させたアルミニウム板材を、ヨウ化カリウム0.05mol/Lを含む水溶液に浸漬し、対極に白金電極を用いて0.17A/dm2の電流密度で直流の電圧を3分間印加することにより、ヨウ化銀を含む析出物を陽極酸化皮膜の細孔内に合成して析出させ、抗ウイルス性を有するアルミニウム板を作製した。
実施例11は、実施例1と同様の条件でアルミニウム板材の表面に細孔を有する陽極酸化皮膜を形成した後、硝酸銀とヨウ化カリウムを混合することにより作成した平均粒子径2nmのヨウ化銀含有水溶液中で、対極に白金電極を用いて0.1A/dm2の電流密度を10分間印加することによりヨウ化銀を含む析出物を陽極酸化皮膜の細孔に析出させ、抗ウイルス性を有するアルミニウム板を作製した。
実施例1において作製した陽極酸化皮膜が形成されたアルミニウム板(細孔内に銅化合物を析出させる処理を行っていないもの)を比較例1とした。
市販の純銅の板(株式会社ユーコウ商会製JISH3100材)をメタノールに室温で1分間浸漬して銅板表面の自然酸化皮膜を除去後、室温で乾燥し、比較例2とした。
実施例1、実施例9および実施例10の抗ウイルス性を有するアルミニウム板を広角X線回折装置(リカグ株式会社製)により表面より深度6μm付近の物質について分析した。実施例1で得られた抗ウイルス性を有するアルミニウム板では、Cu2Oの(111)面に由来する2θ=36.5°のピークと、(200)面に由来する2θ=42.4°のピークと、(220)面に由来する2θ=61.6°のピークとを有する回折パターンが得られた。実施例9ではCuIの(111)面に由来する2θ=25.3°のピークと、(220)面に由来する2θ=41.8°のピークと、(311)面に由来する2θ=49.5°のピークとを有する回折パターンが得られた。実施例10ではAgIの(100)面に由来する2θ=22.3°のピークと、(101)面に由来する2θ=25.3°のピークと、(103)面に由来する2θ=42.6°のピークとを有する回折パターンが得られた。以上より、一価の銅化合物又は、ヨウ素化合物がそれぞれの陽極酸化皮膜の細孔に析出していることが確認された。
抗ウイルス性を有するアルミニウム部材のウイルス不活化性の測定は、エンベロープウイルスとしてインフルエンザウイルス(influenza A/北九州/159/93(H3N2))を、非エンベロープウイルスとしてノロウイルスの代替として一般的に使用されているネコカリシウイルス(feline calicivirus(F9株))を用いて実施した。用いた対象ウイルスは、インフルエンザウイルス((influenza A/北九州/159/93(H3N2))には、MDCK細胞を用いて培養し、ネコカリシウイルス(feline calicivirus(F9株))には、CRFK細胞を用いて培養した。各実施例および比較例の4cm×4cmのサンプルをプラスチックシャーレにいれ、ウイルス液0.1 mLを滴下し、室温で30分間作用させた。このときサンプルの上面をPETフィルム(4cm×4cm)で覆うことで、ウイルス液とサンプルの接触面積を一定にした。30分間作用させた後、SCDLP培地を1900μl添加し、ピペッティングによりウイルスを洗い出した。その後、各反応サンプルが10-2~10-5になるまでMEM希釈液にて希釈を行った(10倍段階希釈)。シャーレに培養したMDCK細胞又は、CRFK細胞にサンプル液100μLを接種した。60分間静置しウイルスを細胞へ吸着させた後、0.7%寒天培地を重層し、48時間、34℃、5%CO2インキュベータにて培養後、ホルマリン固定、メチレンブルー染色を行い形成されたプラーク数をカウントして、ウイルスの感染価(PFU/0.1mL,Log10);(PFU:plaque-forming units)を算出した。コントロールには実施例のサンプルを用いずウイルス液を加えた場合の値を用いた。その結果を表2に示す。
2 陽極酸化皮膜
3 細孔
4 析出物
5 無機微粒子
6 樹脂バインダー
7 機能性微粒子
8 バインダー(シラン化合物)
9 シランモノマー
10、30、40 表面被膜
100、200、300、400 アルミニウム部材
Claims (13)
- 付着したウイルスを不活化できる部材であって、
アルミニウムまたはアルミニウム合金を陽極酸化して得られる、多数の細孔を備える陽極酸化被膜の前記細孔内に、抗ウイルス性を有する無機化合物が存在することを特徴とする抗ウイルス性を有するアルミニウム部材。 - 前記細孔内に前記抗ウイルス性を有する無機化合物が存在する陽極酸化被膜の表面に、抗ウイルス性を有する無機化合物とバインダー樹脂とを含む表面被膜が形成されていることを特徴とする請求項1に記載の抗ウイルス性を有するアルミニウム部材。
- 前記表面被膜に、前記抗ウイルス性を有する無機化合物とは異なる無機微粒子をさらに含むことを特徴とする請求項2に記載の抗ウイルス性を有するアルミニウム部材。
- 前記表面被膜に含まれる前記無機微粒子が光触媒物質であることを特徴とする請求項3に記載の抗ウイルス性を有するアルミニウム部材。
- 前記光触媒物質が可視光応答性光触媒物質であることを特徴とする請求項4に記載の抗ウイルス性を有するアルミニウム部材。
- 前記表面被膜に含まれる前記無機微粒子の表面がシランモノマーで被覆されていることを特徴とする請求項3から5のいずれか1つに記載の抗ウイルスを有するアルミニウム部材。
- 前記バインダー樹脂がシラン化合物であることを特徴とする請求項2から6のいずれか1つに記載の抗ウイルス性を有するアルミニウム部材。
- 前記抗ウイルス性を有する無機化合物が、一価の銅化合物およびヨウ素化合物の少なくともいずれかであることを特徴とする請求項1から7のいずれか1つに記載の抗ウイルス性を有するアルミニウム部材。
- 前記一価の銅化合物が、塩化物、酢酸化合物、硫化物、ヨウ素化合物、臭化物、過酸化物、酸化物、およびチオシアン化物のうち少なくともいずれかであることを特徴とする請求項8に記載の抗ウイルス性を有するアルミニウム部材。
- 前記一価の銅化物が、CuCl、CuBr、Cu(CH3COO)、CuSCN、Cu2S、Cu2O、およびCuIのうち少なくともいずれかであることを特徴とする請求項9に記載の抗ウイルス性を有するアルミニウム部材。
- 前記ヨウ素化合物が、CuI、AgI、SbI3、IrI4、GeI4、GeI2、SnI2、SnI4、TlI、PtI2、PtI4、PdI2、BiI3、AuI、AuI3、FeI2、CoI2、NiI2、ZnI2、HgIおよびInI3のうち少なくともいずれかであることを特徴とする請求項8から10のいずれか1つに記載の抗ウイルス性を有するアルミニウム部材。
- アルミニウムまたはアルミニウム合金のアルミニウム材に対して陽極酸化処理を行って表面に細孔を形成し、
前記細孔が形成された前記アルミニウム材の前記細孔内に、電気化学的処理により抗ウイルス性を有する無機化合物を析出させることを特徴とする抗ウイルス性を有するアルミニウム部材の製造方法。 - 前記細孔内に電気化学的処理により少なくともCuとAgのいずれかを析出させ、
前記細孔内に少なくともCuとAgのいずれかを析出させたアルミニウム材をヨウ素イオンを含む電解液に浸漬し、浸漬したアルミニウム材に対する電気化学的処理により前記細孔内に抗ウイルス性を有する無機化合物であるCuIまたはAgIを析出させることを特徴とする請求項12に記載の抗ウイルス性を有するアルミニウム部材の製造方法。
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EP12829235.6A EP2754734A4 (en) | 2011-09-07 | 2012-09-07 | ANTIVIRAL ALUMINUM ELEMENT AND METHOD FOR PRODUCING THE SAME |
KR1020147007786A KR101962714B1 (ko) | 2011-09-07 | 2012-09-07 | 항바이러스성 알루미늄 부재 및 이의 제조 방법 |
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JP2013532458A JP6100689B2 (ja) | 2011-09-07 | 2012-09-07 | 抗ウイルス性を有するアルミニウム部材およびその製造方法 |
CN201280043342.0A CN103781945B (zh) | 2011-09-07 | 2012-09-07 | 抗病毒铝部件及其制造方法 |
HK14104721.2A HK1191679A1 (zh) | 2011-09-07 | 2014-05-20 | 抗病毒鋁部件及其製造方法 |
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JP2015131282A (ja) * | 2014-01-15 | 2015-07-23 | 昭和電工株式会社 | 光触媒、コーティング剤、及び内装材 |
WO2020203069A1 (ja) * | 2019-04-04 | 2020-10-08 | リケンテクノス株式会社 | 抗ウイルス性塗膜形成用塗料、塗膜、及び積層フィルム |
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- 2012-09-07 JP JP2013532458A patent/JP6100689B2/ja active Active
- 2012-09-07 WO PCT/JP2012/005695 patent/WO2013035343A1/ja active Application Filing
- 2012-09-07 KR KR1020147007786A patent/KR101962714B1/ko active IP Right Grant
- 2012-09-07 EP EP12829235.6A patent/EP2754734A4/en not_active Withdrawn
- 2012-09-07 IN IN1645CHN2014 patent/IN2014CN01645A/en unknown
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Also Published As
Publication number | Publication date |
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RU2014113425A (ru) | 2015-10-20 |
IN2014CN01645A (ja) | 2015-05-29 |
EP2754734A1 (en) | 2014-07-16 |
CA2847549C (en) | 2019-02-26 |
BR112014004076A2 (pt) | 2017-03-07 |
KR20140057622A (ko) | 2014-05-13 |
CN103781945A (zh) | 2014-05-07 |
RU2613820C2 (ru) | 2017-03-21 |
US20140367263A1 (en) | 2014-12-18 |
AU2012305805A1 (en) | 2014-03-20 |
JP6100689B2 (ja) | 2017-03-22 |
CN103781945B (zh) | 2016-10-26 |
CA2847549A1 (en) | 2013-03-14 |
KR101962714B1 (ko) | 2019-03-27 |
HK1191679A1 (zh) | 2014-08-01 |
JPWO2013035343A1 (ja) | 2015-03-23 |
EP2754734A4 (en) | 2015-07-29 |
AU2012305805B2 (en) | 2017-02-16 |
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