Abstract: Provided are: a photocatalyst comprising a porous first metal oxide film having pores, and a second metal particle or a second metal oxide particle formed inside the pores; a method for preparing the photocatalyst; and a photocatalyst apparatus using the photocatalyst.

Abstract: The present invention relates to a glass fiberboard and to a production method therefor, and more specifically, to technology for providing a glass fiberboard for vacuum heat insulation and a production method therefor, which have outstanding initial heat insulation performance and economic advantages through application of an optimized inorganic binder.

Abstract: Disclosed are a sound absorbing sheet having a micro resonant structure and capable of improving sound absorption performance up to the low frequency band by means of the micro resonance principle, a method for manufacturing same, and a sound absorption type soundproof panel using same. The sound absorbing sheet according to the present invention has multiple uneven patterns configured to have convex parts and concave parts on one surface of a porous base material, and the area ratio of the concave part determined by the following formula 1 is 40 to 99%. The area corresponding to the concave part has a lower air permeability than the area corresponding to the convex part. Area ratio of concave portion=[area portion of concave portion]/[area portion of porous base material].

Abstract: Disclosed is a method for preparing a photocatalyst, including: forming a porous film of the first metal oxide formed from a first metal oxide by a sol-gel process; heat-treating the porous film of the first metal oxide to crystallize the first metal oxide; dipping the porous film of the first metal oxide into a precursor solution of a second metal, followed by a photo-irradiation, such that ions of the second metal is to be penetrated inside pores of the porous film of the first metal oxide; and dipping the porous film of the first metal oxide containing the ions of the second metal inside the pores into a solution of alcohol, followed by a photo-irradiation, such that the ions of the second metal is to be reduced to form particles of the second metal inside the pores of the porous film of the first metal oxide.

Abstract: Disclosed herein is a flooring material including: a plasticizer; fibers comprising at least one type of inorganic fibers or at least one type of organic fibers; and a thermoplastic resin. The fibers have an alignment. In addition, a method for manufacturing a flooring material is also disclosed. The method includes preparing a first mixture by mixing a liquid plasticizer with fibers comprising at least one type of inorganic fibers or at least one type of organic fibers; preparing a second mixture in which the fibers are dispersed in the liquid plasticizer by agitating the first mixture; preparing a third mixture by mixing the second mixture with a thermoplastic resin; and forming a floor material through thermo-compression of the third mixture.

Abstract: Provided is a sound absorption sheet comprising: a porous substrate; and a micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof. Also provided is a sound absorbing soundproofing panel, the exterior surface of which is covered with the sound absorption sheet comprising: the porous substrate; and the micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof.

Abstract: A vacuum insulation panel includes a core, and an outer skin material for surrounding the core, wherein the outer skin material includes a bending portion formed at one side surface thereof and sealing portions formed at three side surfaces thereof. A method for manufacturing a vacuum insulation panel includes preparing an outer skin material envelope by forming sealing portions at two side surfaces of an outer skin material including a bending portion formed at one side surface thereof, inserting a core into the outer skin material envelope, decompressing the inside of the outer skin material envelope, and forming a sealing portion at one side surface of the outer skin material envelope.

Abstract: The present invention relates to an LED photocatalyst module comprising: a light supplying unit for irradiating light onto a photocatalyst so that the photocatalyst is activated; a photocatalyst purifying unit disposed spaced apart from the light supplying unit and purifying polluted air; and a discharging unit disposed spaced apart from the photocatalyst purifying unit and sucking in the air purified by the photocatalyst purifying unit and discharging the air to the outside, wherein the photocatalyst purifying unit includes a ceramic honeycomb structure in which a plurality of photocatalyst pores, coated with the photocatalyst, are combined in a honeycomb pattern, and the photocatalyst includes a porous metal oxide film and metal particles formed on a surface of the porous metal oxide film.

Abstract: There are provided a core material for vacuum insulator comprising an organic synthetic fiber, and at least one organic synthetic fiber bonded portion; and a preparation method therefor. In addition, provided is a vacuum insulator comprising the core material for vacuum insulator comprising the organic synthetic fiber, and the at least one organic synthetic fiber bonded portion.

Abstract: Provided is an outer cover material for a vacuum insulator, sequentially comprising: one or more layers of a polyester film; a polyvinyl alcohol (PVOH) film adhered to a lower surface of the polyester film; and a sealing film adhered to a lower surface of the PVOH film. Also provided is a vacuum insulator, comprising a core material consisting of a fiberglass; and the outer cover material under internal pressure, accommodating the core material.

Abstract: Provided are a core material for vacuum insulation panel, comprising about 99% to about 100% by weight of a fiberglass and about 0% to 1% by weight of a carbonized binder, and a vacuum insulation panel comprising thereof. Further, provided is a method for manufacturing a core material for vacuum insulation panel, comprising: providing a fiberglass board, including a fiberglass with an average diameter of about 6 ?m to about 10 ?m; removing a binder by heat treating the fiberglass board; and removing the binder to form a core material for vacuum insulation panel comprising about 99% to about 100% by weight of a fiberglass and about 0% to 1% by weight of a carbonized binder.

Abstract: The present invention relates to a sound absorbing sheet having excellent sound absorbing performance and surface decorative effects. The sound absorbing sheet of the present invention is characterized by comprising a base and having an average sound absorption of 0.4 or higher in a frequency range of 200 to 2000 Hz. The permeability and air porosity of a base layer of the sound absorbing sheet of the present invention may be adjusted, thereby achieving significantly superior effects of sound absorbing performance despite the thinness of the sound absorbing sheet.

Abstract: Disclosed are a sound absorbing sheet having a micro resonant structure and capable of improving sound absorption performance up to the low frequency band by means of the micro resonance principle, a method for manufacturing same, and a sound absorption type soundproof panel using same. The sound absorbing sheet according to the present invention has multiple uneven patterns configured to have convex parts and concave parts on one surface of a porous base material, and the area ratio of the concave part determined by the following formula 1 is 40 to 99%. The area corresponding to the concave part has a lower air permeability than the area corresponding to the convex part. [Formula 1] Area ratio of concave portion=[area portion of concave portion]/[area portion of porous base material].

Abstract: The present invention relates to a vacuum insulation material including an inner bag and to a method for manufacturing same. The method for manufacturing the vacuum insulation material includes: a step of manufacturing a core material; a step of compressing and packing the entire surface of the core material using an inner bag made of a breathable film material; a step of disposing a getter on the upper portion of the inner bag; and a step of vacuum-packing a covering material on the upper portion of the inner bag. The inner bag is made of polypropylene (PP), polyester (PET), and/or polyethylene. Since the inner bag is manufactured using a breathable film having fine holes, the method for manufacturing the vacuum insulation material may have improved efficiency, and the vacuum insulation material may be improved in terms of the long-term durability and vacuum insulation properties thereof.

Abstract: Disclosed is a humidifier apparatus using a photocatalyst having an air-cleaning function, and more particularly, to a humidifier apparatus using a photocatalyst having an air-cleaning function, which is capable of performing an indoor air-cleaning function and a humidifier function while minimizing energy consumption.

Abstract: Provided is a sound absorption sheet comprising: a porous substrate; and a micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof. Also provided is a sound absorbing soundproofing panel, the exterior surface of which is covered with the sound absorption sheet comprising: the porous substrate; and the micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof.

Abstract: Provided is a sound absorption sheet comprising an improved micro-resonance layer formed by means of a porous substrate and printing. The method for manufacturing a sound absorption sheet comprises the steps of: preparing a porous substrate; forming a micro-resonance layer by printing on the upper part of the porous substrate; and drying the micro-resonance layer.

Abstract: Disclosed herein is a humidifying medium which adopts a natural humidifying system and has excellent lifespan characteristics. The humidifying medium according to the present invention is formed by coupling a linerboard to one or both sides of a corrugated board. The corrugated board and the linerboard have different average pore diameters, and the humidifying medium of the present invention may be formed by coupling a linerboard having an average pore diameter of 35˜40 ?m to one or both sides of a corrugated board having an average pore diameter of 8˜10 ?m.

Abstract: Provided are: a photocatalyst comprising a porous first metal oxide film having pores, and a second metal particle or a second metal oxide particle formed inside the pores; a method for preparing the photocatalyst; and a photocatalyst apparatus using the photocatalyst.

Abstract: Provided is a photocatalyst including: a porous metal oxide film; and metal particles formed on a surface of the porous metal oxide film.