WO2002053285A1 - Poudre a fonction optique et son utilisation - Google Patents
Poudre a fonction optique et son utilisation Download PDFInfo
- Publication number
- WO2002053285A1 WO2002053285A1 PCT/JP2001/011681 JP0111681W WO02053285A1 WO 2002053285 A1 WO2002053285 A1 WO 2002053285A1 JP 0111681 W JP0111681 W JP 0111681W WO 02053285 A1 WO02053285 A1 WO 02053285A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- titanium dioxide
- powder
- slurry
- organic polymer
- particles
- Prior art date
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- 150000003755 zirconium compounds Chemical class 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
- XJUNLJFOHNHSAR-UHFFFAOYSA-J zirconium(4+);dicarbonate Chemical compound [Zr+4].[O-]C([O-])=O.[O-]C([O-])=O XJUNLJFOHNHSAR-UHFFFAOYSA-J 0.000 description 1
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
- B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
- B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
- B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
- B01J27/1806—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with alkaline or alkaline earth metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3653—Treatment with inorganic compounds
- C09C1/3661—Coating
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
Definitions
- the present invention relates to a material having a photocatalytic function, a photofunctionality such as ultraviolet absorbing ability and transparency, and a hydrophilic property. More specifically, the present invention relates to optical functional powders, slurries thereof, polymer compositions using them, coating agents, optical functional molded articles, optical functional structures, hydrophilic structures, and the like. The present invention also relates to the application of a material containing an optically functional powder to the surface of fibers, paper or plastic, or the mixing and mixing of the optically functional powder with fibers or plastics, or a coating containing the optically functional powder. It is related to applications used in such forms. Background art
- titanium dioxide has been widely used as a white pigment because of its excellent hiding power and coloring power. It is known that such titanium dioxides exhibit new optical characteristics different from conventional titanium dioxide pigments when the particle diameter becomes finer and become ultrafine.In recent years, research on titanium dioxide fine particles has been actively conducted. Is being done. As such optical characteristics, for example, when the particle diameter is reduced to about 1Z2 wavelength of visible light, the scattering effect of titanium dioxide fine particles becomes extremely small, and visible light is transmitted, but titanium dioxide particles Due to its excellent ultraviolet absorption effect, it is attracting attention as an ultraviolet absorber that transmits visible light.
- Titanium dioxide photocatalyst It is said that the mechanism is based on the following mechanism. First, when the titanium dioxide fine particles are irradiated with light, electrons and holes generated inside the titanium dioxide fine particles react with water and oxygen near the surface of the titanium dioxide fine particles to generate hydroxy radicals and hydrogen peroxide. However, harmful organic substances are purified into carbon dioxide and water by the strong redox effect of the hydroxy radical and hydrogen peroxide.
- titanium dioxide fine particles examples include kneading the titanium dioxide fine particles into media such as easy-to-handle fibers and molded plastics, and applying them to the surface of substrates such as cloth and paper. Methods have been attempted. Attempts have also been made to obtain an excellent hydrophilic surface by applying it to the surface.
- titanium dioxide due to the strong photocatalytic action of titanium dioxide, not only harmful organic substances and environmental pollutants, but also fibers, plastics, and the media of paper itself were easily decomposed and deteriorated, which hindered practical durability.
- paints that mix titanium dioxide fine particles and a binder have been developed due to the ease of handling of the titanium dioxide fine particles.
- JP-A-Heisei 9-22539- ⁇ and JP-A-Heisei 9-2392797 describe the deterioration of the resin medium due to the strong photocatalytic action of titanium dioxide particles or the Disclosure of measures to prevent deterioration
- a method has been proposed in which a photoinactive compound such as aluminum, silicon, or zirconium is supported on the surface of titanium dioxide particles in an island shape with a steric barrier to suppress the photocatalytic action.
- a photoinactive compound such as aluminum, silicon, or zirconium is supported on the surface of titanium dioxide particles in an island shape with a steric barrier to suppress the photocatalytic action.
- this method since the photo-inactive compound is supported in an island shape, there is a disadvantage that a specific portion of the resin medium or the binder is subjected to a strong photocatalytic action of titanium dioxide.
- Japanese Patent Application Laid-Open No. H10-224414 discloses a photocatalytic titanium dioxide in which the surface of titanium dioxide is coated with porous calcium phosphate. Although it has been proposed, it has been pointed out that in this case, the photocatalytic performance is degraded by the calcium phosphate layer of the coating film.
- WO 9333565 discloses that a porous calcium phosphate coating layer is formed on at least a part of the surface of titanium dioxide fine particles, and an anionic surfactant is formed on the interface. There is disclosed a titanium dioxide fine particle powder in which is present.
- JP-A-11-335121 discloses a titania sol solution, a titania gel body, or a titania sol-gel mixture. Disclosed is an anatase-type titanium oxide-containing slurry obtained by heat treatment and pressure treatment in a container and then by ultrasonic dispersion or stirring.
- Japanese Patent Application Laid-Open No. H11-3343426 discloses a photocatalytic paint having excellent dispersion stability, including a peak of Raman spectrum in the range of 146 to 150 cm- 1. There is disclosed a photocatalytic paint containing a titanium oxide and a silica sol in a solvent, the titanium oxide having an anatase type titanium dioxide occupying at least 95% by mass or more.
- Patent No. 27 56 64 74 discloses a photocatalytic semiconductor material and silicon. Disclosed are a substrate having a photocatalytic film made of a force or a silicone, wherein the surface of the film exhibits hydrophilicity by photoexcitation, and a composition forming the same.
- an object of the present invention is to provide an optically functional particle which has excellent dispersion stability without impairing the optical functionality of titanium dioxide, and which can enhance industrial utility, and the like. It provides powders and slurries and their uses.
- optical functional particles having the following, powders and slurries containing the particles, a polymer composition, a coating agent, an optical functional molded article, an optical functional structure, and the like using the same. . Disclosure of the invention
- a condensed phosphoric acid salt containing an alkaline earth metal (hereinafter referred to as “condensed phosphoric acid”) is formed on the surface of titanium dioxide fine particles. )
- the soluble condensed phosphate is firmly bound or supported on the titanium dioxide fine particles, and the action of a medium such as a binder or a resin causes the effect of titanium dioxide.
- the present inventors have found that it is difficult to separate from the surface of the tan fine particles, and that the above-mentioned problems can be solved.
- the present invention relates to the following optical functional particles, optical functional powders containing the optical functional particles, aqueous slurries containing the optical functional particles, applications of the optical functional powders or aqueous slurries.
- Coating agent, photo-functional organic polymer composition, paint using the polymer composition, compound, master patch for various molded products, photo-functional molded product, photo-functional structure and hydrophilicity Provide a structure.
- Photo-functional particles characterized in that a condensed phosphate containing an alkaline earth metal is present on the surface of titanium dioxide.
- the condensed phosphate is at least one selected from the group consisting of polyphosphate, metal phosphate, and ultraphosphate;
- the light transmittance of the slurry at a wavelength of 550 nm and an optical path length of 2 mm is 20% or more.
- the concentration of the photofunctional powder in the organic polymer composition is 18.
- optically functional molded article according to the above item 23, wherein the optically functional molded article is a molded article selected from a fiber, a film, and a plastic molded article.
- a hydrophilic structure having a surface layer containing the photofunctional particles according to any one of the above items 1 to 6, wherein the surface of the surface layer exhibits hydrophilicity.
- Structures are used for building materials, machinery, vehicles, glass products, home appliances, agricultural materials, electronic devices, tools, tableware, bath products, toilet products, furniture, clothing, cloth products, textiles, leather products,
- FIG. 1 is a diagram showing a time change of a contact angle between water of a structure of the present invention and a conventional structure.
- the optical function of the titanium dioxide particles is an optical function that is prominently exhibited when the titanium dioxide particles are miniaturized, and indicates a photocatalytic function, an ultraviolet absorbing ability, transparency, and the like.
- the titanium dioxide used in the present invention is not particularly limited to a crystal form and its production method as long as it basically has photofunctionality such as photocatalytic ability, ultraviolet absorbing ability and transparency. Titanium dioxide microparticles obtained by gas-phase reaction / wet reaction using titanium halide as raw material, or titanium dioxide microparticles or sol obtained by hydrolyzing titanic acid solution by wet method, or baked products May be.
- the titanium dioxide fine particles used in the present invention are not limited to a crystal form as described above, and may be any of anatase, rutile, and wurtzite. These single crystal-type fine particles or a mixed crystal containing these crystals Fine particles may be used.
- the average particle size of the primary particles of the titanium dioxide used in the present invention is preferably in the range of 0.001 to 0.1 ⁇ m. If the average particle size of the primary particles is less than 0.01 ⁇ , it is difficult to produce them efficiently, which is not practical. If it exceeds 0.1 ⁇ m, the transparency and photocatalytic function of titanium dioxide will be significantly reduced.
- the Chijimigori emissions salt described in the present invention are salts of the acid obtained by dehydration condensation of Orusori phosphate (H 3 P 0 4), is not particularly limited, pyrosulfate Li emissions salt or preparative Ripori Polyphosphates such as phosphate, metaphosphates such as trimethacrylate and tetramethacrylate, and ultraphosphate are preferred. These condensed phosphates are usually It is preferably present in the range from 0.01% to 50% by mass, preferably from 0.1% to 20% by mass, based on the mass of the tan.
- the content of the condensed phosphate is less than 0.01% by mass, the durability of the medium itself is deteriorated due to the photocatalytic action of titanium dioxide on the medium such as plastic, paper, or fiber.
- the condensed phosphate is more than 50% by mass, it is economically disadvantageous.
- the particles of the present invention are characterized in that at least an alkaline earth metal (Be, Mg, Ca, Sr, Ba, a) is present at the interface between condensed phosphate ions and titanium dioxide. It is.
- alkaline earth metals serve as a binder between the condensed phosphate ions and the titanium dioxide fine particles, and have an effect of preventing the release of the condensed phosphate ions from the titanium dioxide surface.
- the alkaline earth metal used is not particularly limited, but Mg and Ca are preferred. These alkaline earth metals are usually present in the range of 0.01 to 20% by mass, preferably 0.01 to 10% by mass, based on the mass of titanium dioxide. Is preferred.
- the alkaline earth metal is less than 0.01% by mass, it does not serve as a binder, and condensed phosphate is easily released in the medium. On the other hand, when the content of the alkaline earth metal is more than 20% by mass, the dispersibility of the photofunctional titanium dioxide fine particles in the present invention is deteriorated.
- a predetermined condensed phosphate is added to an aqueous slurry containing titanium dioxide and sufficiently dispersed. After that, a method of adding an aqueous solution of an alkaline earth metal chloride or the like and ripening is adopted.
- a metal such as platinum, rhodium, ruthenium, palladium, silver, copper, or zinc may be previously supported on the surface of the titanium dioxide fine particles.
- the activity of titanium dioxide particles to purify the environment is further enhanced, and the disinfecting and algicidal effects are also increased.
- the supporting of the metal may be carried out on the raw material titanium dioxide, or a step capable of supporting the metal when the condensed phosphoric acid alkaline earth metal is included may be incorporated.
- the aqueous slurry in the present invention is titanium dioxide in which titanium dioxide has titanium dioxide fine particles as a main component and condensed phosphate on its surface, and at least at the interface between the condensed phosphate ion and titanium dioxide.
- the content ratio of the optically functional powder in the slurry is not particularly limited, and is, for example, preferably in the range of 0.01% by mass to 50% by mass, and more preferably in the range of 1% by mass to 40% by mass. If the content of the optical functional powder is less than 0.01% by mass, sufficient optical functionality cannot be obtained after coating. On the other hand, if the content exceeds 50% by mass, not only the problem of thickening and the like occurs but also the economically disadvantageous aqueous slurry has ⁇ of 5 to 9, preferably 6 to 8. If the pH is less than 5, the substrate may be chemically oxidized or corroded.If the pH exceeds 9, not only chemical changes to the substrate, but also adversely affect the use environment. In some cases, the base material and the working environment are restricted.
- the light transmittance of the slurry of the present invention is set such that the concentration of the optical functional particles in the slurry is 10% by mass, and the thickness (optical path length) of the slurry is 2 mm, and It is desirable that the value be 20% or more when measured at the above wavelength.
- the transmittance is more preferably 30% or more, and the higher the transmittance, the better. If the transmittance is less than 20%, the dispersion stability is poor, and after coating, sufficient transparency and photofunctionality such as photocatalytic ability may not be obtained.
- the aqueous dispersion (slurry) is prepared by adding a binder to the slurry.
- An optically functional structure can be manufactured by applying a coating agent to the surface of various structures described below.
- the binder material used in the present invention is not particularly limited, and may be an organic binder or an inorganic binder.
- organic binders include polyvinyl alcohol, melamine resin, urethane resin, celluloid, chitin, starch sheet, polyacrylamide, acrylamide, acrylic silicon, and fluorine resin.
- inorganic binders include zirconium chloride, zirconium hydroxychloride, zirconium nitrate, zirconium sulfate, zirconium acetate, zirconium carbonate ammonium, zirconium carbonate, zirconium compounds such as zirconium propionate, and alkoxide silanes and silicates. Examples include silicon compounds, metal alkoxides of aluminum and Ti, and their partial hydrolysates.
- the amount of the binder added in the coating agent is preferably in the range of 0.01% by mass to 20% by mass, and more preferably in the range of 1% by mass to 10% by mass.
- the content of the binder is 0.01% by mass or less, sufficient adhesiveness is not obtained after coating, and when it exceeds 20% by mass, not only a problem such as thickening occurs but also an economic disadvantage is caused. .
- the photofunctional powder of the present invention can be used as a composition by being added to an organic polymer.
- the organic polymer examples include a synthetic thermoplastic resin, a synthetic thermosetting resin, and a natural resin. Due to the presence of the condensed phosphoric acid and the alkaline earth metal, the organic polymer does not directly contact the photocatalytically active surface of titanium dioxide (the surface of titanium dioxide), and the organic polymer itself in the medium is decomposed and deteriorated. And the durability of the organic polymer increases.
- organic polymers include polyethylene, polypropylene, polyolefins such as polystyrene, nylon 6, nylon Polyamides such as lon66, amides, polyethers such as poly (ethylene terephthalate) and unsaturated polyesters, polyvinyl chloride, polyvinylidene chloride, polyethylene oxide, polyethylene glycol, Silicon resin, Polyvinyl alcohol, Pinyl acetal resin, Polyacetate, ABS resin, Epoxy resin, Vinyl acetate resin, Senolerose and rayon and other Senorelose derivatives, Urethane resin, Polyurethane resin, Polycarbonate resin, Urea resin, Fluorine resin , Polyvinylidene fluoride, phenolic resin, celluloid, chitin, starch sheet, acryl resin, melamine resin, alkyd resin and the like.
- the organic polymer composition containing the photofunctional powder of the present invention includes a coating material (coating composition), a compound (for example, the powder-containing organic resin composition), and a photofunctional powder. It can be used in the form of a master patch for molded articles containing a high concentration.
- concentration of the photocatalyst powder in the organic polymer composition is from 0.01 to 80% by mass, preferably from 1 to 50% by mass, based on the total mass of the composition.
- an adsorbent such as activated carbon or zeolite may be added to the organic polymer composition in order to enhance the effect of removing malodorous substances.
- a polymer molded article having optical functionality can be obtained by molding the above polymer composition. Examples of a molded article of such a composition include a fiber, a film, and a plastic molded article.
- the organic polymer composition of the present invention is excellent in durability and can be applied as a coating composition for structures such as wall materials, glass, signboards, and concrete for road construction.
- the titanium dioxide photocatalyst powder and organic polymer composition of the present invention which have been further surface-treated, can be applied to structures such as paper, plastic, cloth, and wood (organic substances), and coatings for vehicles and the like. Damages the medium (structure or coating) by photocatalytic degradation It is possible to fully perform optical functions without breaking.
- the hydrophilic structure of the present invention exhibits hydrophilicity without using silica, silicone molecules, etc., exhibits a hydrophilicity with a contact angle with water of 10 degrees or less even in a dark place, and has a self-cooling property. Has functions such as cleaning and anti-fog.
- the obtained slurry was filtered and washed using a rotary filter press (manufactured by Kotobuki Giken Co., Ltd.), and the electric conductivity of the filtrate was 50 ⁇ S / After washing thoroughly with water to obtain a photo-functional slurry.
- the pH of the obtained optically functional slurry (D-22, manufactured by Horiba, Ltd.) was measured and found to be 8.5.
- a portion of the slurry thus obtained was collected, and the solid content was measured by a dry constant weight method. As a result, it was 10% by mass.
- a part of the obtained slurry was measured for light transmittance at a wavelength of 550 nm with a thickness (optical path length) of 2 mm using a Minolta spectrophotometer, CM-370d, to obtain 37%. Met.
- the solid content (dry powder) obtained by drying a part of the slurry was analyzed by FT-IR (PerkinElmer Co., Ltd., FT-IR1650 type). Metallic acid absorption was observed.
- Pure water was added to the above-mentioned photofunctional slurry to dilute the slurry so that the powder equivalent was 0.5%.
- a water-dispersed urethane resin (VONDIC 1400 NS, manufactured by Dainippon Ink and Chemicals, Inc.) was added to the slurry so that the urethane resin content was 70% of the powder.
- a coating agent containing a conductive powder and a urethane resin was obtained.
- polyester non-woven fabric (6 denier, manufactured by Takayasu Co., Ltd.), taken out, squeezed with a roller, dried at 80 for 2 hours, and the optically functional powder is borne. Obtained polyester non-woven fabric
- the polyester nonwoven fabric was exposed to a light of 50 mW / cm 2 with a feed meter (SUN SETCPS +, manufactured by Heraeus), and after 24 hours, the coloring of the fibers was examined. No coloring was observed.
- the coating material containing the photofunctional powder obtained in Example 1 and the urethane resin was applied to one surface of a polyethylene terephthalate fi / rem (Lumilar T, manufactured by Toray Industries, Inc.) of 100 itm.
- the mixture was coated with an applicator of No. 25111 and dried at 80 ° C. for 2 hours to obtain a poly (ethylene terephthalate finolem) carrying a photofunctional powder.
- the obtained poly (ethylene terephthalate) finolem (600 cm 2 ) was subjected to the same photocatalytic activity evaluation and weather resistance test as in Example 1.
- the transmittance of the obtained optically functional powder-supported polyethylene terephthalate film was measured using a spectrophotometer (UV-240 PC, manufactured by Shimadzu Corporation). The transmittance at 0 nm was 5%, and the transmittance at 550 nm was 98%.
- Example 1 A part of the photo-functional slurry obtained in Example 1 was dried with a medium fluid dryer (a slurry dryer manufactured by Okawara Seisakusho Co., Ltd.), 5 kg of an optically functional powder having condensed phosphate containing calcium on the surface of titanium fine particles was obtained.
- a medium fluid dryer a slurry dryer manufactured by Okawara Seisakusho Co., Ltd.
- Example 4 The same treatment as in Example 1 was carried out except that 200 g of calcium chloride described in Example 1 was replaced with 300 g of magnesium chloride (made by Naikai Salt Industry Co., Ltd., for food supplementation). A coating agent containing a conductive powder and a urethane resin was prepared. Next, the obtained coating agent was applied to a polyethylene terephthalate film in the same manner as in Example 2 to obtain a poly (ethylene terephthalate) film carrying a photo-functional powder, and photocatalytic activity evaluation, weather resistance test, and transmission The rate was measured. Table 1 shows the results.
- Example 1 Same as Example 1 except that 1 kg of sodium metal phosphate described in Example 1 was changed to 2.3 kg of sodium polyphosphate (made by Taihei Chemical Industry Co., Ltd. for food use). After the treatment, a coating agent containing the optically functional powder and urethane resin was prepared. Next, the obtained coating agent was applied to a polyethylene terephthalate film in the same manner as in Example 2 to obtain a polyethylene terephthalate film carrying the optically functional powder as shown in Table 1. The photocatalytic activity evaluation, the weather resistance test and the measurement of the transmittance of this photofunctional powder-supported polyethylene terephthalate film were performed, and the results shown in Table 1 were obtained.
- Example 5 Same as Example 5 except that 2.3 kg of sodium polyphosphate described in Example 5 was replaced with 1.5 kg of sodium ultraphosphate (produced by Taihei Chemical Co., Ltd.). Thus, a polyethylene terephthalate film carrying the optically functional powder was obtained. The photocatalytic activity evaluation, the weather resistance test, and the measurement of the transmittance of this photofunctional powder-supported poly (ethylene terephthalate) film were performed, and the results shown in Table 1 were obtained.
- the 2 mass 0/0 of the titanium dioxide slurry slide Dogarasu was (MA TSTUN AM I made microphone Rosurai Dogarasu S 7 2 1 3) to Furoko and reports open the resulting structure in Comparative Sample A.
- the thickness of the surface layer of this comparative sample was measured by a contact-type surface roughness meter and found to be 120 nm.
- a silicon-based adhesive (4 mass% solution in terms of SiO 2, pH 2.5), which was partially hydrolyzed by adding pure water and nitric acid to a mixture of tetramethoxysilane and ethanol, was added to SiO 2.
- This structure was used as Comparative Sample B.
- the thickness of the surface layer of Comparative Sample B was 15 O nm.
- the obtained titanium dioxide slurry containing sodium metaphosphate and a calcium chloride solution were mixed and kept at 40 ° C for 4 hours.
- the electric conductivity at that time was 100.000 ⁇ S / cm.
- the obtained slurry was filtered and washed with a rotary filter press (manufactured by Kotobuki Giken Co., Ltd.), and the electric conductivity of the filtrate was 50 ⁇ S / After washing thoroughly with water to obtain a photo-functional slurry.
- the pH of the obtained optically functional slurry (D-22, manufactured by Horiba, Ltd.) was measured and found to be 8.5.
- the hydrophilicity of this working sample and the comparative samples A and B was evaluated by the contact angle between a water droplet on the surface layer and the surface layer.
- the evaluation procedure was as follows. After making these samples, they were kept in a dark place not exposed to light, and the time change of the contact angle was measured. The contact angle was measured with a contact angle meter CA-D manufactured by Kyowa Interface Science.
- Example 2 With respect to the wurtzite type titanium dioxide described in Example 1, a coating agent containing a urethane resin was produced in the same manner as in Example 1. Next, the obtained coating agent was applied to a polyethylene terephthalate film in the same manner as in Example 2, and a polyethylene terephthalate supporting titanium dioxide was applied. Tarate film was obtained. This film was evaluated for photocatalytic activity, weather resistance test and transmittance, and the results shown in Table 1 were obtained.
- the electrical conductivity at that time was lOOOOO ⁇ S / cm.
- the light transmittance of the slurry at 550 nm was measured in the same manner as in Example 1, it was 12%.
- the obtained slurry was filtered and washed with a rotary filter press (manufactured by Kotopi Giken Co., Ltd.), and sufficiently washed with water until the electric conductivity reached 50 SZcm.
- a coating agent containing a urethane resin was prepared from the obtained slurry by the method described in Example 1. This coating agent was applied to a polyethylene terephthalate film in the same manner as in Example 2 to obtain a polyethylene terephthalate film carrying an optically functional powder. This file After evaluating the photocatalytic activity, weather resistance test and transmittance
- Example 1 The water-soluble polyurethane resin described in Example 1 was dissolved in pure water and dissolved to 0.35%. The obtained coating agent was applied to a polyethylene terephthalate film described in Example 2 to obtain a film. This film was evaluated for photocatalytic activity, weather resistance test, and transmittance, and the results shown in Table 1 were obtained.
- a photo-functional particle of the present invention in which a condensed phosphate containing an alkaline earth metal is present on the surface of titanium dioxide, a powder and a slurry containing the photo-functional particle, a polymer composition, a coating agent, a molded product, By using it for a structure, excellent optical functionality and durability, dispersion stability, and hydrophilicity can be obtained.
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Description
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-7008521A KR20030067719A (ko) | 2000-12-28 | 2001-12-28 | 광기능성 분체 및 그 용도 |
EP01272925A EP1354628B1 (en) | 2000-12-28 | 2001-12-28 | Powder exhibiting optical function and use thereof |
CNB018207650A CN1326617C (zh) | 2000-12-28 | 2001-12-28 | 光功能性粉体及其用途 |
JP2002554229A JP4233324B2 (ja) | 2000-12-28 | 2001-12-28 | 光機能性粉体及びその用途 |
DE60134049T DE60134049D1 (de) | 2000-12-28 | 2001-12-28 | Pulver mit optischer funktion und verwendung davon |
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JP2000-402470 | 2000-12-28 | ||
JP2000402470 | 2000-12-28 | ||
JP2001-388615 | 2001-12-21 | ||
JP2001388615 | 2001-12-21 |
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WO2002053285A1 true WO2002053285A1 (fr) | 2002-07-11 |
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PCT/JP2001/011681 WO2002053285A1 (fr) | 2000-12-28 | 2001-12-28 | Poudre a fonction optique et son utilisation |
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EP (1) | EP1354628B1 (ja) |
JP (1) | JP4233324B2 (ja) |
KR (3) | KR100820219B1 (ja) |
CN (1) | CN1326617C (ja) |
AT (1) | ATE395133T1 (ja) |
DE (1) | DE60134049D1 (ja) |
WO (1) | WO2002053285A1 (ja) |
Cited By (6)
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JP2005082763A (ja) * | 2003-09-10 | 2005-03-31 | Yoo Corporation:Kk | アモルファス被膜及び防曇性アモルファス被膜 |
JP2006239495A (ja) * | 2005-03-01 | 2006-09-14 | Yoo Corporation:Kk | 防曇性被膜被覆物品、防曇性被膜形成用塗工材料及び防曇性被膜被覆物品の製造方法 |
JP2007055875A (ja) * | 2005-08-26 | 2007-03-08 | Tayca Corp | 酸化チタン水性スラリーの濾過速度を改善する方法およびこの方法から得られた酸化チタン粉体 |
JP2009240990A (ja) * | 2008-03-31 | 2009-10-22 | Admatechs Co Ltd | 光触媒微粒子、光触媒分散液及び光触媒加工繊維 |
WO2013161748A1 (ja) * | 2012-04-27 | 2013-10-31 | 昭和電工株式会社 | 二次電池用負極活物質の製造方法および二次電池用負極活物質、二次電池用負極の製造方法および二次電池用負極、ならびに二次電池 |
WO2014104225A1 (ja) * | 2012-12-28 | 2014-07-03 | 三井化学株式会社 | 表面被覆粒子およびその用途 |
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JP2010115635A (ja) * | 2008-06-05 | 2010-05-27 | Sumitomo Chemical Co Ltd | 光触媒体分散液、その製造方法およびその用途 |
JP2010180303A (ja) * | 2009-02-04 | 2010-08-19 | Sumitomo Chemical Co Ltd | 親水化剤、その製造方法およびその用途 |
EP2883917A1 (de) * | 2013-12-13 | 2015-06-17 | Kronos International, Inc. | Calciumphosphat-haltige Kompositpigmente und Verfahren zu ihrer Herstellung |
US10087329B2 (en) | 2014-06-17 | 2018-10-02 | Ishihara Sangyo Kaisha, Ltd | Titanium dioxide pigment and method for manufacturing same, and composition in which same is blended |
DE102018105936A1 (de) * | 2018-03-14 | 2019-09-19 | Fachhochschule Münster | Beschichtete Photokatalysatoren |
KR102412515B1 (ko) * | 2020-10-28 | 2022-06-24 | 한국과학기술연구원 | 콘크리트 결합용 이산화티타늄 분산액 조성물 및 이를 이용한 콘크리트 표면에 이산화티타늄 나노입자를 고정화시키는 방법 |
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2001
- 2001-12-28 WO PCT/JP2001/011681 patent/WO2002053285A1/ja active IP Right Grant
- 2001-12-28 CN CNB018207650A patent/CN1326617C/zh not_active Expired - Fee Related
- 2001-12-28 DE DE60134049T patent/DE60134049D1/de not_active Expired - Lifetime
- 2001-12-28 JP JP2002554229A patent/JP4233324B2/ja not_active Expired - Fee Related
- 2001-12-28 KR KR1020077020390A patent/KR100820219B1/ko not_active IP Right Cessation
- 2001-12-28 EP EP01272925A patent/EP1354628B1/en not_active Expired - Lifetime
- 2001-12-28 KR KR10-2003-7008521A patent/KR20030067719A/ko not_active Application Discontinuation
- 2001-12-28 KR KR1020067006946A patent/KR20060041320A/ko not_active Application Discontinuation
- 2001-12-28 AT AT01272925T patent/ATE395133T1/de not_active IP Right Cessation
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JPH09942A (ja) * | 1995-06-16 | 1997-01-07 | Titan Kogyo Kk | 二酸化チタンを基体とする光触媒及びその製造方法 |
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JP2005082763A (ja) * | 2003-09-10 | 2005-03-31 | Yoo Corporation:Kk | アモルファス被膜及び防曇性アモルファス被膜 |
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WO2013161748A1 (ja) * | 2012-04-27 | 2013-10-31 | 昭和電工株式会社 | 二次電池用負極活物質の製造方法および二次電池用負極活物質、二次電池用負極の製造方法および二次電池用負極、ならびに二次電池 |
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Also Published As
Publication number | Publication date |
---|---|
JP4233324B2 (ja) | 2009-03-04 |
ATE395133T1 (de) | 2008-05-15 |
DE60134049D1 (de) | 2008-06-26 |
EP1354628B1 (en) | 2008-05-14 |
CN1326617C (zh) | 2007-07-18 |
CN1481279A (zh) | 2004-03-10 |
EP1354628A4 (en) | 2004-06-09 |
KR20030067719A (ko) | 2003-08-14 |
KR100820219B1 (ko) | 2008-04-08 |
JPWO2002053285A1 (ja) | 2004-04-30 |
KR20060041320A (ko) | 2006-05-11 |
EP1354628A1 (en) | 2003-10-22 |
KR20070094869A (ko) | 2007-09-21 |
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