Search / Korean Journal of Chemical Engineering
Korean Chemical Engineering Research,
Vol.42, No.6, 684-689, 2004
NH3 플라즈마 처리한 폴리스티렌 막에서 CO2의 수착과 투과특성
Sorption and Permeation Characteristics of CO2 in Polystyrene Membrane Treated with NH3 Plasma
NH3 플라즈마 처리한 폴리스티렌 막에서 CO2의 수착과 투과특성을 조사하여 dual-mode sorption/mobility 모델의 적용 가능성을 검토하고, 플라즈마 출력세기의 변화에 따른 평균투과계수의 변화를 조사하였다. pressure decay method로 수착특성을 조사하였고, variable volume method로 투과특성을 조사하였다. CO2의 수착현상은 dual-mode sorption 모델로 잘 묘사할 수 있었고, CO2의 투과현상은 dual-mode mobility 모델로 잘 묘사할 수 있었다. 플라즈마 출력세기가 80 W 이하에서는 평균투과계수가 감소하나 80 W 이상에서는 평균투과계수가 증가하였다.
The applicable possibility of dual-mode sorption/mobility model and the change of mean permeation coefficient as the change of the plasma input power were investigated from the sorption and permeation experiments of CO2 in polystyrene membrane treated with NH3 plasma. The sorption experiment carried out using a pressure decay method and the permeation experiment carried out using a variable-volume method. The sorption and permeation behavior of CO2 were simulated well in terms of the dual-mode sorption and mobility model. The mean permeation coefficient was decreased under 80 W of the plasma input power but increased above 80 W of the plasma input power.
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