논문 상세보기

N2/NF3 분리용 폴리썰폰 중공사막 제조 연구 KCI 등재

Fabrication of Polysulfone Hollow Fiber Membranes for N2/NF3 Separation

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/311641
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
멤브레인 (Membrane Journal)
한국막학회 (The Membrane Society Of Korea)
초록

반도체 및 디스플레이 공정에서 배출되는 N2/NF3 혼합 가스 분리를 위한 폴리썰폰 중공사막 제조 연구를 수행하였다. 먼저 non-solvent induced phase separation (NIPS)와 vapor induced phase separation (VIPS) 혼합 공정을 이용하여 기체 투과성이 높은 고분자 중공사막을 제조하였다. 제조된 중공사막 표면에 PDMS(polydimethylsiloxiane)와 Teflon AF1600® 고 분자 소재를 이용하여 얇은 박막을 추가적으로 코팅하는 방법으로 기체 분리막을 완성하였다. 제조된 분리막은 코팅된 고분 자 소재의 기체 분리 특성에 따라 상이한 N2/NF3 분리 성능을 보여주었다. 특히 Teflon AF1600® 이 코팅된 중공사막의 경우 N2/NF3 분리 성능(> 14)을 보여주었고, N2 투과도는 4.5 GPU를 나타내었다. 상용 폴리썰폰 막과 비교해 볼 때, 투과도는 약간 감소하였지만 기체 선택도는 크게 증가하였다. 이런 특징은 N2/NF3를 분리하는 분리막 구조로써 큰 가능성을 지니는 것으로 판단된다. Abstract:

Fabrication of polysulfone (PSf) hollow fiber membranes was investigated for the separation of N2/NF3 gas mixtures, which are emitted from the display and the semiconductor industries. A combination of the non-solvent induced phase separation (NIPS) and the vapor-induced phase separation (VIPS) technique was applied to develop high flux hollow fiber membranes. Thin polymer layers were further coated onto the surface of the hollow fiber membranes by using polydimethylsiloxiane (PDMS) or Teflon AF1600®, which contributes to improve the N2/NF3 selectivity. The N2/NF3 separation performances of our PSf hollow fiber membranes were determined by the intrinsic properties of coating materials. Especially, the PSf hollow fiber membrane coated with Teflon AF 1600® exhibited a higher N2/NF3 selectivity (> 14) with a slightly lower N2 permeance (4.5 GPU), as compared to the commercial PSf counterparts. This feature provides a good potential as a membrane structure to separate N2/NF3.

저자
  • 임민수(Center for Membrane, Advanced Materials Division, Korea Research Institute of Chemical Technology,Department of Energy Engineering Hanyang University) | Min Su Lim
  • 김성중(Center for Membrane, Advanced Materials Division, Korea Research Institute of Chemical Technology,University of Science and Technology) | Seong-Joong Kim
  • 강하성(Center for Membrane, Advanced Materials Division, Korea Research Institute of Chemical Technology) | Ha Sung Kang
  • 박호범(Department of Energy Engineering Hanyang University) | Ho Bum Park
  • 남승은(Center for Membrane, Advanced Materials Division, Korea Research Institute of Chemical Technology) | Seung Eun Nam
  • 박호식(Center for Membrane, Advanced Materials Division, Korea Research Institute of Chemical Technology) | Ho Sik Park
  • 이평수(Center for Membrane, Advanced Materials Division, Korea Research Institute of Chemical Technology) | Pyung Soo Lee Corresponding author
  • 박유인(Center for Membrane, Advanced Materials Division, Korea Research Institute of Chemical Technology,University of Science and Technology) | You In Park