Abstract:
The present invention relates to a size separating device for carbon nanotube agglomerates, and to a method for separating and obtaining dispersed carbon nanotubes using the same and, more specifically, to a size separating device for carbon nanotube agglomerates using a magnetic field, and to a method for separating and obtaining dispersed carbon nanotubes using the same.
Abstract:
PURPOSE: A descending pipe and a fluidized bed reactor are provided to efficiently re-inject particles collected from a cyclone into the fluidized bed reactor. CONSTITUTION: A descending pipe(30) for a fluidized bed reactor is in the shape of a pipe with an inlet(31) and an outlet(33). The outlet includes a slanted cut side. The cut side of the outlet forms an angle of 30 to 60 degrees based on the surface of the ground. A screw(32) is arranged at the outer circumference of the inlet. The fluidized bed reactor further includes a fluidized bed reaction part, a cyclone, and a restricting member. The cyclone separates solid particles and gas. The descending pipe is connected to the cyclone and re-circulates the separated solid particles into the fluidized reaction part. The restricting member is installed under the descending pipe and restricts the flow of the solid particles.
Abstract:
PURPOSE: A method for dispersing carbon nanotubes, an apparatus for dispersing the carbon nanotubes, and dispersed carbon nanotubes are provided to efficiency disperse carbon nanotube aggregate by applying magnetic field to the carbon nanotube aggregate and a magnetic substance which are chemically bonded. CONSTITUTION: Carbon nanotube aggregate(10) is chemically bonded with a magnetic substance(30) using a mediator(20). Magnetic field is applied to the bonded carbon nanotube aggregate and the magnetic substance to disperse the carbon nanotube aggregate. The mediator is a radical initiator or a chemical formula, A-B. In the chemical formula, A represents an organic group bondable with carbon nanotube. The B represents an organic group bondable with the magnetic substance.
Abstract:
PURPOSE: A dispersion method of carbon nanotube is provided to effectively disperse carbon nanotube aggregate by conveniently applying external magnetic field without separate physical process or chemical process. CONSTITUTION: A dispersion method of carbon nanotube comprises the steps of: mixing carbon nanotube aggregates, magnetic substances, and dispersing agents; and applying a magnetic field to the mixture to disperse the carbon nanotube aggregate. The magnetic substance includes one or more selected from the group consisting of ferric oxide, cobalt, nickel and chromium oxide.
Abstract:
PURPOSE: A fluidized bed reactor is provided to minimize the heat loss generated in a reaction of the fluidized bed by circulating a solid particle in a multilayered fluidized bed reaction chamber, to simplify whole process, and to reduce the volume of the fluidized bed reactor. CONSTITUTION: A fluidized bed reactor comprises: a fluidized bed reaction room(20) which is formed into multilayer and produces solid particles through oxidation or the reduction reaction; a spreader plate(24) which is installed in the inner side of the fluidized bed reaction room and supplies reactive gas for reacting with the solid particles; a cyclone(26) separating the reacted gas; and an ascending pipe(30) transferring the solid particles to the upper fluidized bed reaction room. One or more orifice hole(32) is formed on the bottom of the ascending pipe. The fluidized bed reaction room is divided into a first fluidized bed reaction room(20a), a second fluidized bed reaction room(20b), and a third fluidized bed reaction room(20c).
Abstract:
개시된 내용은 유동층 반응기의 분산판을 냉각하여 유동가스가 분산판의 통기공을 막는 현상을 방지하기 위한 유동층 반응기에 관한 것이다. 유동층 반응기의 본체는 내부 공간을 가지며, 하측에 가스 유입관이 제공되고, 상측에 가스 유출관이 제공되어 있다. 본체의 내부에는 본체의 상하 방향과 수직하게 분산판이 제공되어 있다. 분산판은 내부 공간을 갖도록 제공되어 있다. 분산판에는 노즐이 배치되어 있으며, 냉각수 유입관 및 냉각수 유출관이 연결되어 있다. 냉각수 유입관 및 냉각수 유출관은 본체의 외부로부터 본체의 하부를 통과하여 분산판의 내부와 연통하도록 제공되어 있다. 이와 같이 구성된 본 발명에 따르면, 유동층 반응기용 분산판을 냉각하기 위한 구조를 단순화함으로써 제조공정상 편리함을 제공할 수 있으며, 분산판을 냉각함으로써 유동가스가 분산판에서 열분해되지 않으며 이에 따라 분산판의 통기공이 막히는 현상을 방지할 수 있다. 유동층 반응기, 분산판, 탄소나노튜브
Abstract:
An organic light emitting display device and a manufacturing method thereof are provided to facilitate an organic film forming process by using a screen printing scheme. A pattern is formed on a screen(30) using a photo-sensitive agent. The photo-sensitive agent is removed from a region to be printed, so that ink(20) penetrates the region to be printed during a printing process. The photo-sensitive agent is coated on a region which is not to be printed, so that the photo-sensitive agent is blocked by the screen. The screen has a flexible property, so that the screen is contacted with a substrate, when the ink is applied using a squeegee(10). The ink which penetrates the screen is applied on the substrate.