Abstract:
PURPOSE: A membrane for water treatment is provided to be able to implement a membrane for water treatment with a high water permeability and membrane pollution prevention, and a manufacturing method thereof, and to be able to reduce the operation cost and to maintain the lifespan of the membrane for a long time. CONSTITUTION: A membrane (10) for water treatment includes nanofibers (20) and has a surface charge (30). The nanofibers form a net form, and have the diameter of 10-1000 nm. The nanofibers include ionic polymer and non-ionic polymer. The ionic polymer has an ionic functional group. The ionic functional group includes at least one selected from the group consisting of sulfonate, carboxylate, phosphate, amine and ammonium. The polymer having at least one functional group selected from the group consisting of sulfonate, carboxylate and phosphate includes at least one selected from the group consisting of Nafion, sulfonated polyether-ether-ketone, and carboxylated polyether-ether-ketone. A manufacturing method of a membrane for water treatment comprises a step of manufacturing a mixed solution by mixing ionic polymer and non-ionic polymer; a step of manufacturing a membrane including nanofibers with the mixed solution by using the elctrospinning method; and a step of heat-treating the membrane.
Abstract:
PURPOSE: A manufacturing method of a thermoconductive composite is provided to improve the thermal conductivity of a thermoconductive composite by controlling the direction of fibrous filler or coating the surface of the fibrous filler with a metal material with excellent thermal conductivity. CONSTITUTION: A manufacturing method of a thermoconductive composite includes a step of forming a metal layer with thermal conductivity on the surface of fibrous filler (S10); a step of impregnating the fibrous filler into a melted polymer resin (S20); and a step of curing the fibrous filler and the melted polymer resin (S30). The metal material used in the step of forming the metal layer has a higher thermal conductivity than that of the fibrous filler. The metal material is at least one selected from Al, Ag, Cu, Ni, Sn, and Pt. [Reference numerals] (S10) Step of forming a metal layer with thermal conductivity on the surface of fibrous filler; (S20) Step of impregnating the fibrous filler with the metal layer into a melted polymer resin; (S30) Step of curing the impregnated fibrous filler and the melted polymer resin
Abstract:
본 발명은 트리 알콕시 실록산 단량체를 통해 폴리실세스퀴옥산을 중합하는 방법으로서, 트리 알콕시 실록산 단량체, 유기 용매, 물 및 촉매를 포함하는 함수 유기용액을 제조하는 단계; 및 상기 함수 유기용액 중 유기 용매의 양 또는 함수량을 조절하는 단계를 포함하여 바구니형 폴리실세스퀴옥산 또는 사다리형 폴리실세스퀴옥산을 선택적으로 제조하는 것을 특징으로 하는 방법 및 이에 의해 제조된 바구니형 폴리실세스퀴옥산 또는 사다리형 폴리실세스퀴옥산에 관한 것이다.
Abstract:
PURPOSE: A plastic-organic/inorganic hybrid adhesive film is provided to remarkably improve binding strength between a plastic material and an organic/inorganic hybrid film, thereby using for insulative coating, a film for hard coating, various display materials, etc. CONSTITUTION: A plastic-organic/inorganic hybrid adhesive film comprises a plastic material, and an organic/inorganic hybrid film adhered to the surface of the surface of the plastic material through a chemical bond. The chemical bond is generated by a ring-opening reaction between a reactive amine functional group, which is chemically combined to the surface of the plastic material, and an epoxy silane coupling agent in the organic/inorganic hybrid film.
Abstract:
PURPOSE: A polymer composite actuator is provided to improve the distribution of fillers by using elastic elements including maleic anhydride, acryl, urethane, carboxyl group and amine groups. CONSTITUTION: An elastic dielectric layer(3a) includes an elastomer and polymer composite. The elastomer includes a polar group. The polymer composite includes one or more conductive or high dielectric fillers. A top electrode is attached to one surface of the elastic dielectric layer. A bottom electrode(3b) is attached to the surface of the elastic dielectric layer opposite to the surface with the top electrode.