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HWAHAK KONGHAK,
Vol.34, No.4, 489-495, 1996
Vol.34, No.4, 489-495, 1996
Membrane-Covered Electrode를 이용한 폴리프로필렌의 산소 투과특성 측정
Characteristics of Oxygen Permeable Polypropylene with Membrane-Covered Electrode
상업적으로 사용되고 있는 biaxially oriented polypropylene과 cast polypropylene의 산소에 대한 투과도, 확산도 및 용해도 등의 투과특성을 실험실에서 제작한 membrane-covered electrode와 컴퓨터 시스템을 이용하여 on-line으로 측정하였다. 이들 자료를 압력 기울기법에 의하여 구한 수치와 통계적으로 비교한 결과 전기화학적 방법에 의한 측정법이 산소 전달연구에서 보다 편리하고 신뢰성 있음을 알 수 있었다.
Characteristics of polypropylene films commercially available in biaxially oriented and cast forms were examined to determine the permeability, diffusivity and solubility of oxygen by electrochemical system composed of lab-made membrane-covered electrode and on-line monitoring PC units. Results values were statistically compared with ones from pressure gradient method. It shows that the present electrochemical measurement is more fast and reliable method for the study of oxygen transfer.
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