WO2004039739A1 - ガラス基板への薄膜形成方法および薄膜被覆ガラス基板 - Google Patents
ガラス基板への薄膜形成方法および薄膜被覆ガラス基板 Download PDFInfo
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- WO2004039739A1 WO2004039739A1 PCT/JP2003/013905 JP0313905W WO2004039739A1 WO 2004039739 A1 WO2004039739 A1 WO 2004039739A1 JP 0313905 W JP0313905 W JP 0313905W WO 2004039739 A1 WO2004039739 A1 WO 2004039739A1
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- glass substrate
- thin film
- forming
- glass
- coating
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/007—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/25—Oxides by deposition from the liquid phase
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/25—Oxides by deposition from the liquid phase
- C03C17/256—Coating containing TiO2
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/213—SiO2
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/23—Mixtures
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
- C03C2217/45—Inorganic continuous phases
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
- C03C2217/477—Titanium oxide
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
- C03C2217/478—Silica
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/71—Photocatalytic coatings
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/112—Deposition methods from solutions or suspensions by spraying
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/113—Deposition methods from solutions or suspensions by sol-gel processes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/36—Underside coating of a glass sheet
Definitions
- the present invention relates to a method for forming a uniform thin film without unevenness on a large-size glass substrate surface for building use and the like, and a thin-film coated glass plate formed by this method.
- Thin films are formed on the surface of large (large) glass substrates for architectural purposes for the purpose of adding various functions such as ultraviolet shielding, heat shielding, conductivity, antifouling, hydrophilicity, water repellency, coloring, and the like.
- a method for forming such a functional thin film there are known a dry method in which a solid film is formed directly on a substrate, and a wet method in which a coating solution is coated on a substrate, followed by drying and heat treatment to form a thin film. ing.
- a wet method using a coating solution in which various compositions can be prepared is widely used as an attractive method.
- a typical method of the wet method there are known a spin method, a mouth method, a flow method, a dive method, a spray method and the like.
- the spin-co-one-time method is a method in which a glass substrate is rotated at a high speed, and a coating liquid is dropped on a surface to spread uniformly, thereby forming a thin film.
- coating large-sized glass substrates requires a large-sized apparatus, and rotating the held glass at high speed requires large-scale holding equipment and safety measures. Coating on large sized glass substrates is virtually impossible.
- the roll-co-over-night method is a method in which a coating film is brought into contact with the surface of a glass substrate while the glass substrate is being conveyed to form a thin film.
- it is necessary to keep the surface level constant so that the entire coating roll contacts the glass substrate uniformly.However, in the case of a large-size glass substrate, the coating roll width becomes large because the coating roll width becomes large. And the like, and is likely to become a non-uniform thin film.
- the Floco All-In-One method is a method in which a coating liquid is uniformly dropped in the width direction on a glass substrate while the glass substrate is being conveyed to form a thin film.
- a high viscosity is required for the coating solution to form a uniform thin film. If the viscosity of the coating solution is low, the glass substrate Unevenness occurs in the width direction and the transport direction of. Therefore, usable coating liquids are limited.
- the dive method is a method in which a glass substrate is immersed in a coating solution and then pulled up to form a thin film.
- speed control, vibration prevention, atmosphere control, etc. during pulling are indispensable.
- the pulling speed cannot be so high, if coating is performed only on one side, There is a problem that productivity is low because a masking process is required.
- the spray method is a method of forming a thin film by spraying a coating liquid on the surface while transporting a glass substrate. From the viewpoint of productivity, it is most suitable for large-size glass for buildings. However, with a large-sized glass substrate, it is difficult to spray a uniform amount over the entire surface of the glass substrate, and appearance irregularities often occur. In addition, to obtain a uniform thin film, it is important to control the surface temperature of the glass substrate.
- a method is disclosed in which a titanium oxide aqueous solution is sprayed on the surface of a rifon-shaped glass while the molding process is completed after exiting from a float bath outlet and a titanium oxide film is formed by the retained heat of the glass substrate (Patent Document 1). ), Since the temperature of the glass substrate was high, evaporation of the aqueous solution of titanic acid was rapid, and it was difficult to form a thin film having a uniform thickness.
- An object of the present invention is to provide a method for uniformly forming a functional thin film on the surface of a large-sized glass substrate for architectural use and the like, and a thin-film coated glass substrate formed by this method. Disclosure of the invention
- the first method of forming a thin film on a glass substrate of the present invention is a method of forming a thin film on a large glass substrate by a spray method, wherein a molten glass is flowed on a Sn bath as the large glass substrate.
- a sheet glass manufactured by the float bath method of taking out and gradually hardening spray coating a coating liquid using alcohol as a solvent on the bottom surface formed in contact with the Sn bath of this sheet glass, metal Form oxide thin film It is a method to accomplish.
- the second method for forming a thin film on a glass substrate of the present invention is a method for forming a thin film on a large-sized glass substrate by a spray method, wherein alcohol is used as a solvent, and at least 5% by mass and 15% by mass
- This is a method of spraying a coating solution containing water on a glass substrate and performing coating while controlling wettability of the coating solution to the glass substrate to form a metal oxide thin film.
- a third method of forming a thin film on a glass substrate of the present invention is a method of forming a thin film on a large glass substrate by a spray method, wherein the large glass substrate is formed by flowing molten glass onto a Sn bath.
- the bottom surface formed by contacting the glass plate with the Sn bath has alcohol as a solvent, and is not less than 5% by mass.
- a coating solution containing water of not more than mass% is sprayed, and coating is performed while controlling the wettability of the coating solution to the glass substrate to form a metal oxide thin film.
- the water contained in the coating solution is added after preparing an alcohol solution of the metal oxide raw material. By doing so, unevenness is less likely to occur in the formed thin film.
- the metal oxide thin film is a thin film containing titanium oxide and / or silicon oxide
- an antifouling function can be added to the glass substrate.
- the coating liquid is spray-coated while keeping the temperature of the glass substrate at 35 ° C or less, and then the surface temperature of the glass substrate is raised to 100 ° C or more and 300 ° C or less. Is also preferred.
- the thin-film-coated glass substrate of the present invention produced by such a method can be used for various applications depending on the type of the coated functional thin film.
- FIG. 1 is a sectional view showing an example of a glass substrate manufactured by a float bath method.
- FIG. 1 is a sectional view showing an example of a glass substrate manufactured by a float bath method.
- the glass substrate 1 is gradually hardened while flowing molten glass onto a tin (Sn) bath. Therefore, a diffusion layer 4 of tin oxide is present on the bottom surface 3 of the float glass 2 which is formed so as to face the Sn bath.
- Sn tin
- the diffusion layer 4 the tin oxide at the bottom surface the surface (S N_ ⁇ 2) concentration is the highest, and that of the layer S N_ ⁇ 2 concentration is summer decreases as the depth of the interior glass increases typically, S N_ ⁇ 2 concentration was about 3 O wt% at a depth of L ⁇ 2 nm from the bottom facing surface, S N_ ⁇ 2 concentration at 1 0 0 nm depth about 5 wt%, S n 0 2 concentration in 2 0 0 O nm depth is about LWT%.
- the surface opposite to the bottom surface 3 is called the top surface (also called the fire surface) 5, and the float glass 2 is exposed.
- FIG. 1 is upside down from the beginning, but in the present invention, the spray coating is performed on the bottom surface, so this arrangement is adopted.
- the glass substrates that are produced are often as large as 2 m or more.
- the first method of forming a thin film of the present invention is a method of forming a metal oxide thin film 6 by spray-coating a bottom surface 3 with a coating solution using alcohol as a solvent.
- a coating solution using alcohol as a solvent When the pot surface is spray-coated with a coating solution using alcohol as a solvent, the thin film 6 tends to be a uniform film.
- the mechanism for obtaining a uniform film is considered as follows.
- the droplets of the coating solution sprayed on the substrate surface spread on the substrate and are connected to other droplets to form a uniform liquid film, which is then dried and solidified to form a thin film having a uniform thickness and appearance. That is, the wettability (contact angle) between the coating solution and the substrate has a great effect on the uniformity of the thin film.
- the wettability of the coating solution to the substrate is too high (the contact angle is too low), the droplets that reach the substrate will spread immediately, and the surface area will increase rapidly, causing the solvent to evaporate immediately and another droplet. Solidifies before it is sufficiently connected, resulting in uneven thickness and appearance of the thin film.
- the wettability of the coating solution to the substrate is too low (the contact angle is too high), the spread of the droplets is too slow to form a uniform liquid film, so that the thickness and appearance of the thin film also become uneven.
- the coating liquid and the substrate have a wettability
- the spreading speed of the droplets and the evaporation speed of the solvent are balanced, and a uniform liquid film is formed.Thus, a thin film with uniform thickness and appearance Is considered to be formed.
- a tin oxide diffusion layer 4 is formed on the bottom surface 3, and the tin oxide concentration on the surface is high. Therefore, the wettability to water, alcohol, etc. is lower than that of the top surface 5 (contact High corner). Therefore, the wettability of the coating solution is appropriately controlled, and uniform coating is achieved.
- a second method of forming a thin film according to the present invention comprises spraying a coating solution containing water of 5% by mass or more and 15% by mass or less on a glass substrate using alcohol as a solvent.
- This is a method of forming a metal oxide thin film by performing coating while controlling the wettability to water. By adding the above amount of water to the alcohol, the spreading speed of the droplet and the evaporation speed of the solvent are balanced, and a uniform liquid film is formed, so that a thin film having a uniform thickness and appearance is formed.
- water is added to an alcohol solvent having a lower boiling point than water, such as methanol or ethanol, the apparent boiling point of the solvent will increase and the solvent will not evaporate rapidly on the glass substrate.
- water increases the surface tension of the coating solution, reduces the wettability between the coating solution and the glass substrate, and suppresses the rapid spread of droplets on the glass substrate.
- the coating liquid sprayed on the glass substrate becomes a uniform liquid film, and a thin film having a uniform thickness and appearance is formed.
- alcohol and water such as methanol and ethanol are uniformly mixed, and non-uniformity does not occur in the coating solution. Therefore, addition of water to an alcohol solvent is preferably used.
- the water content in the coating solution using alcohol as a solvent is 5% by mass or more and 15% by mass or less. If the amount of water added is less than 5% by mass, the wettability of the coating liquid on the glass substrate surface is too high, so that the droplets spread rapidly upon contact with the glass substrate. For this reason, the sol-gel solution applied in a small amount for forming a thin film evaporates immediately, and a non-uniform film is formed on the surface of the glass substrate. Therefore, it is not preferable to add water less than 5% by mass.
- the added amount of water is more than 15% by mass, so that the wettability of the zolgel solution on the glass substrate surface is too low, so that the liquid droplets do not spread sufficiently even when they come into contact with the glass substrate, resulting in an uneven liquid. Since the solvent evaporates in a film state, a uniform thin film cannot be formed, which is still undesirable.
- the coating solution used in the present invention uses an alcohol such as methanol, ethanol, or 2-propanol as a solvent.
- a metal oxide source any one of a metal alkoxide, a metal hydroxide colloid, and a metal oxide fine particle is used. Or a mixture of these.
- a coating solution containing a metal alkoxide contains 6% by mass of a silicon alkoxide as a liquid for forming a silicon oxide film, and the solvent is methanol.
- "Rixon Coat” manufactured by Daihachi Kagaku Co., Ltd. as a coating solution for forming a titanium oxide silicon monoxide film (TiZSi) molar ratio (20/80), solid content: 10% by mass — 1 9 Ti ”. Titanium oxide fine particles may be dispersed in these coating solutions to increase the titanium oxide component.
- a solvent containing methanol as a solvent and containing a Ti compound such as titanium alkoxide and a Si compound such as Z or silicon alkoxide can be exemplified.
- the coating liquid is coated on a glass substrate and then baked to form a thin film 6 containing titanium oxide and / or silicon oxide. If a glass substrate on which a thin film 6 containing titanium oxide and Z or silicon oxide is formed is used for a window glass or the like, even if dust and dirt adheres, the dirt is washed away by rainfall. ) Is exerted to remove dirt.
- the third method of the thin film forming method of the present invention is a combination of the first method and the second method described above, and a coating liquid using alcohol as a solvent is spray-coated on the bottom surface 3. At this time, water is contained in an amount of 5% by mass or more and 15% by mass or less with respect to the coating liquid, and the wettability of the coating liquid to the glass substrate is controlled to form a metal oxide thin film. is there.
- the water contained in the coating liquid is added after preparing an alcohol solution of the metal oxide raw material. By doing so, unevenness is less likely to occur in the formed thin film.
- any of the first to third thin film forming methods described above it is preferable to remove organic components adhering to the glass substrate surface before spray coating the coating solution.
- removing organic components there is a method of cleaning the glass substrate surface with cerium oxide or the like. By removing the organic substances attached to the glass substrate surface, the wettability of the coating solution is stabilized, and a uniform thin film is easily formed on the entire surface of the glass substrate.
- the coating liquid it is preferable to spray-coat the coating liquid while keeping the surface temperature of the glass substrate at 35 ° C. or lower, preferably 10 to 30 ° C. If the temperature of the glass substrate surface is 35 or more, the solvent evaporation rate of the coating solution may be too high to obtain a uniform thin film. By keeping the temperature of the glass substrate at 35 ° C or less, the unevenness of the solvent evaporation rate is suppressed, and it becomes easy to form a uniform thin film.
- the coating solution while maintaining the surface temperature of the glass substrate at 35 ° C or less.
- the strength of the film increases, and the film becomes more durable. If the heating temperature is lower than 100, the effect of heating is small, the film does not have a sufficient strength, and the bonding strength between the glass substrate and the film is low, which is not preferable.
- the heating temperature is higher than 300 ° C, the glass substrate often breaks during cooling after heating, and if cooled slowly under conditions that do not break, the productivity is reduced. Absent.
- the heating may be performed by a known method, and examples thereof include an infrared heating method using an electric furnace, a gas furnace, or the like.
- the thin-film-coated glass substrate of the present invention on which a thin film is formed by the above method, has a functional film having a thickness of preferably 50 to 500 nm formed uniformly on the surface of a large-sized glass substrate.
- a functional film having a thickness of preferably 50 to 500 nm formed uniformly on the surface of a large-sized glass substrate.
- the type of the functional film include a hydrophilic film, a photocatalyst film, an ultraviolet shielding film, a heat shielding film, a conductive film, a water repellent film, and a colored film for the purpose of antifouling.
- Table summarizes Examples and Comparative Examples.
- Titanium oxide water sol (solid content 20wt%)
- the method for forming a thin film on a glass substrate according to the present invention comprises spraying a coating solution containing alcohol as a solvent on the bottom surface of a large glass substrate, Spray coating using a coating solution of a coating solvent, or a combination of both of these methods. In either case, the evaporation rate and the spreading rate of the coating solution are controlled appropriately and uniform. A thin film can be formed.
- a more uniform thin film can be formed by removing the organic components adhering to the glass surface as a pretreatment or adjusting the temperature of the glass substrate to 35 ° C or less as a coating condition. it can.
- the thin-film-coated glass substrate of the present invention obtained by the above-mentioned thin film forming method has a large size and a uniform appearance and function, it is used for daylighting of high-rise buildings, general home window glasses, and other buildings. It can be suitably used for various applications such as glass.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/532,875 US20060096320A1 (en) | 2002-10-30 | 2003-10-30 | Process of forming thin film on glass substrate and glass substrate coated with thin film |
AU2003280633A AU2003280633A1 (en) | 2002-10-30 | 2003-10-30 | Method of forming thin film on glass substrate and glass substrate coated with thin film |
EP03770010A EP1564192A1 (en) | 2002-10-30 | 2003-10-30 | Method of forming thin film on glass substrate and glass substrate coated with thin film |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002315258A JP2004149347A (ja) | 2002-10-30 | 2002-10-30 | ガラス基板への薄膜形成方法および薄膜被覆ガラス基板 |
JP2002-315258 | 2002-10-30 |
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WO2004039739A1 true WO2004039739A1 (ja) | 2004-05-13 |
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PCT/JP2003/013905 WO2004039739A1 (ja) | 2002-10-30 | 2003-10-30 | ガラス基板への薄膜形成方法および薄膜被覆ガラス基板 |
Country Status (7)
Country | Link |
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US (1) | US20060096320A1 (ja) |
EP (1) | EP1564192A1 (ja) |
JP (1) | JP2004149347A (ja) |
KR (1) | KR20050084913A (ja) |
CN (1) | CN1732134A (ja) |
AU (1) | AU2003280633A1 (ja) |
WO (1) | WO2004039739A1 (ja) |
Families Citing this family (5)
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JP2011173312A (ja) * | 2010-02-24 | 2011-09-08 | Touch Panel Kenkyusho:Kk | ガラス基板積層構造体 |
CN103524046A (zh) * | 2013-09-29 | 2014-01-22 | 南京中电熊猫液晶显示科技有限公司 | 一种配向膜在线修补设备及其在线修复方法 |
CN104354412A (zh) * | 2014-11-03 | 2015-02-18 | 大连爱瑞德纳米科技有限公司 | 一种太阳能隔热膜及连续制备太阳能隔热膜的方法 |
CN105906375B (zh) * | 2016-04-20 | 2019-06-04 | 长沙学院 | 一种透明介孔二氧化钛疏水/超亲水功能薄膜的制备方法 |
CN116282946B (zh) * | 2023-02-14 | 2023-12-22 | 江阴市恒峰塑玻有限公司 | 一种自清洁镀膜玻璃及其加工工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03265547A (ja) * | 1990-03-16 | 1991-11-26 | Nippon Parkerizing Co Ltd | ガラスの表面処理方法 |
JP2000143293A (ja) * | 1998-11-06 | 2000-05-23 | Central Glass Co Ltd | 光触媒膜付きガラスおよびその製法 |
JP2000219875A (ja) * | 1999-02-01 | 2000-08-08 | Nippon Sheet Glass Co Ltd | 撥水膜被覆物品を製造する方法、撥水膜被覆物品および撥水膜被覆用液組成物 |
-
2002
- 2002-10-30 JP JP2002315258A patent/JP2004149347A/ja active Pending
-
2003
- 2003-10-30 WO PCT/JP2003/013905 patent/WO2004039739A1/ja not_active Application Discontinuation
- 2003-10-30 AU AU2003280633A patent/AU2003280633A1/en not_active Abandoned
- 2003-10-30 US US10/532,875 patent/US20060096320A1/en not_active Abandoned
- 2003-10-30 KR KR1020057007721A patent/KR20050084913A/ko not_active Application Discontinuation
- 2003-10-30 EP EP03770010A patent/EP1564192A1/en not_active Withdrawn
- 2003-10-30 CN CNA200380108086XA patent/CN1732134A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03265547A (ja) * | 1990-03-16 | 1991-11-26 | Nippon Parkerizing Co Ltd | ガラスの表面処理方法 |
JP2000143293A (ja) * | 1998-11-06 | 2000-05-23 | Central Glass Co Ltd | 光触媒膜付きガラスおよびその製法 |
JP2000219875A (ja) * | 1999-02-01 | 2000-08-08 | Nippon Sheet Glass Co Ltd | 撥水膜被覆物品を製造する方法、撥水膜被覆物品および撥水膜被覆用液組成物 |
Also Published As
Publication number | Publication date |
---|---|
EP1564192A1 (en) | 2005-08-17 |
AU2003280633A8 (en) | 2004-05-25 |
AU2003280633A1 (en) | 2004-05-25 |
US20060096320A1 (en) | 2006-05-11 |
CN1732134A (zh) | 2006-02-08 |
KR20050084913A (ko) | 2005-08-29 |
JP2004149347A (ja) | 2004-05-27 |
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