Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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열유동 상분리막의 구조연구

  • ;
  • ;
  • Douglass, K. Lolyd (Depariment of Chemical Engineering. The university of Texas at Austin)
  • 김성수 (한국과학기술연구원 분리막 연구실) ;
  • 김재진 (한국과학기술연구원 분리막 연구실) ;
  • Published : 1991.12.01
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Abstract

열유도 상분리법을 이용하여 제조되는 분리막의 구조 변화를 열역학 및 속도론적 관점에서 고찰하였다. Polypropylene과 희석제로서 n-alkanes, n-fatty acids, n,n-bis(2-hydroxyethyl) tallowamine을 model system으로 하였다. 고분자/희석제 system의 상변화의 종류에 따라 다양한 형태의 분리막구조가 얻어졌다. 분리막의 구조에 영향을 미치는 변수로서 고분자/희석제간의 interaction parameter, 희석제의 분자 크기, 용액의 조성, 냉각 조건, 희석제의 결정화 온도 등이며, 각 변수의 역할을 전자현미경을 사용하여 규명하였다. 열유동 상분리법에 의하여 제조된 분리막은 inter-spherulitic 및 intra-spherulitic pore의 이중 구조로 이루어짐을 확인하였다.

Keywords

References

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