Abstract:
Provided are a heat radiation member and a mobile terminal having the same, in which the heat radiation member includes: a heat radiation sheet configured to disperse and radiate transferred heat and block and insulate transferred heat; and a passage formed in the heat radiation sheet and configured to pass a communication radio signal, wherein the passage comprises at least one punching area penetrating the heat radiation sheet.
Abstract:
Provided are an ion-exchange membrane and a filter module using the same. The ion-exchange membrane includes: a porous membrane that is formed by accumulating nanofibers obtained by electrospinning an ion-exchange solution, or a non-pore membrane that is formed by accumulating liquid droplets obtained by electrospraying an ion-exchange solution.
Abstract:
Provided are a deionization composite electrode, a method of manufacturing the deionization composite electrode, and a deionization apparatus using the same. The deionization composite electrode includes: a porous substrate having fine pores; an ion exchange membrane that is formed by electrospraying an ion exchange solution on one surface of the porous substrate; and a conductive film that is formed on the other surface of the porous substrate.
Abstract:
Provided are filter media for liquid filters and a method of manufacturing the same, in which a thin filter layer is formed and the content of nanofibers weighs light, by laminating a low weight nanofiber web on a porous nonwoven fabric, and thus a less differential pressure is applied before and after filtering, to thereby increase a pass flow rate. The filter medium includes: a porous support that plays a strength support role; and a nanofiber web that is laminated on one side of the porous support and is made of nanofibers of a polymer material, in which the nanofiber web comprises fine pores of a three-dimensional structure, through which a liquid to be treated passes, wherein content of the nanofibers is less than 5 gsm.
Abstract:
Provided are a filter medium, a manufacturing method thereof, and a filter apparatus using the filter medium. The filter medium includes: a porous substrate; a nanofiber web that is laminated on both sides of the porous substrate, and that has a number of fine pores formed by electrospinning a polymer material; and an adhesive unit for adhering the porous substrate and the nanofiber web integrally, wherein the adhesive unit is achieved by applying heat whose temperature is lower than the melting point of the porous substrate and higher than the melting point of the nanofiber web.
Abstract:
A manufacturing method of an amorphous soft magnetic core using a Fe-based amorphous metallic powder includes size-sorting an amorphous metallic powder obtained by pulverizing an amorphous ribbon prepared by a rapid solidification process (RSP) and then using the amorphous metallic powder having a particle size distribution so as to comprise 10 to 85 wt. % of powder having a particle size of 75 to 100 μm, 10 to 70 wt. % of powder having a particle size of 50 to 75 μm, and 5 to 20 wt. % of powder having a particle size of 5 to 50 μm to manufacture an amorphous soft magnetic core with excellent high-current DC bias characteristic and good core loss characteristic.
Abstract:
Provided is an organic thin film forming apparatus, an organic thin film forming method, and a method of manufacturing an organic thin film device using the same, in which an organic light-emitting layer (photoactive layer) and/or an electron transport layer can be formed on a substrate when an organic light emitting diode (OLED) or an organic solar cell is manufactured. The organic thin film forming apparatus includes: a solution spray unit for spraying a solution on a substrate; and a hot gas spray unit for spraying a hot gas onto fine liquid droplets that have been sprayed from the solution spray unit and that are in flight, to thereby evaporate a solvent contained in the fine liquid droplets.
Abstract:
A heat insulation sheet includes: a heat insulation layer formed as a nanofiber web form having a plurality of pores by electrospinning a polymeric material; and an adhesion layer laminated on one or both sides of the heat insulation layer and formed as a nanofiber web form by electrospinning an adhesion material, to thereby be made thin and have a plurality of fine pores, and to thus improve heat insulation performance.
Abstract:
Provided is a waterproof sound-permitting sheet, including: a porous nanoweb that has a plurality of pores and that is formed by electrospinning a polymer material to which a black or a different color pigment is added, thereby shortening a manufacturing process and improving waterproofing performance and sound-permitting performance.
Abstract:
Disclosed herein is a waterproof sound-transmitting sheet having high sound transfer efficiency and excellent water proofing performance and a method of producing same. The waterproof sound-transmitting sheet includes: a film-shaped sound-transmitting layer made of a first polymer material; and a webbed pigment layer formed on at least one side of the sound-transmitting layer and made of a second polymer material containing a pigment having a predetermined color, wherein the second polymer material has a melting point higher than that of the first polymer material.