Abstract:
PURPOSE: An antistatic coating composition for an IC tray is provided to manufacture a product in various colors and to solve dust and contaminant problems as the antistatic coating composition is capable of realizing permanent antistatic property and does not use particles, such as carbon black. CONSTITUTION: An antistatic coating composition for an IC tray comprises 100.0 parts by weight of a copolymer resin, 10 to 30 parts by weight of polyether block amides, 0.1 to 1 part by weigh to a UV stabilizer, 0.1 to 1 part by weight of antioxidant, and 0.1 to 0.5 part by weight of a dispersing agent. The copolymer resin is formed 60 to 90 parts by weight of an acrylonitrile-butadiene-styrene copolymer (ABS) resin; and 10 to 60 parts by weight of a styrene-ethylene-butylene-styrene (SEBS) resin or a styrene-butylene-styrene (SBS) resin.
Abstract:
PURPOSE: A manufacturing method of electrolyte membrane is provided to offer an electrolyte membrane in which the reduction of hydrogen ion conductance at high temperature is minimized and the efficiency of ion exchange is high, and to reduce manufacturing cost without using of fluorine. CONSTITUTION: A manufacturing method of electrolyte membrane for fuel cell having sulfonated polyethylene-propylene/styrene block copolymer comprises: a step of preparing polyethylene-propylene/styrene block copolymer liquid by dissolving the polyethylene-propylene/styrene block copolymer having the following chemical formula structure in solvent; and a step of performing sulfonation by adding sulfonating agent to the polyethylene-propylene/styrene block copolymer liquid.
Abstract:
본 발명에 따른 탄소나노튜브와 섬유상 여재를 포함한 폴리올레핀계 고분자 조성물은 기초수지로서 폴리올레핀계 수지, 탄소나노튜브, 및 섬유상 여재로 이루어지는 것을 그 특징으로 한다. 상기 섬유상 여재는 200 마이크론 이하의 입경을 갖는 천연가죽 분말로 이루어지는 것을 그 특징으로 한다. 본 발명의 폴리올레핀 조성물에서 기초수지인 폴리올레핀 수지 100 중량부에 대하여 탄소나노튜브는 0.3 내지 1.0 중량부로 포함되고, 천연가죽 분말은 0.5 내지 2.0 중량부로 포함되는 것이 바람직하다.
Abstract:
PURPOSE: An antistatic semiconductive resin composition is provided to have superior extrusion processability and excellent physical properties such as a tensile strength while having a surface resistance within a moderate range. CONSTITUTION: An antistatic semiconductive resin composition comprises polyethylene, ethylene vinyl acetate and carbon black. The sum of p+q+r, where p is the weight% of the polyethylene and the q is the weight% of the ethylene vinyl acetate and r is the weight% of the carbon black based on the total weight of the semiconductive resin composition, p is 108-2r - 118-2r q is r-18 - r-11, and r is 21-29. [Reference numerals] (S10) Putting raw material in; (S20) Mixing; (S30) Extruding; (S40) Cooling/cutting