멤브레인 (Membrane Journal)

  • 제34권5호
  • /
  • Pages.241-252
  • /
  • 2024
  • /
  • 1226-0088(pISSN)
  • /
  • 2288-7253(eISSN)
한국막학회 (The Membrane Society of Korea)
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미세다공성 분리막의 기공특성 분석법

Pore Characterization Methods for Microporous Membranes

  • 박인호 (한양대학교 에너지공학과) ;
  • 강준혁 (한양대학교 에너지공학과) ;
  • 박호범 (한양대학교 에너지공학과)
  • Inho Park (Department of Energy Engineering, Hanyang University) ;
  • Jun Hyeok Kang (Department of Energy Engineering, Hanyang University) ;
  • Ho Bum Park (Department of Energy Engineering, Hanyang University)
  • 투고 : 2024.10.10
  • 심사 : 2024.10.18
  • 발행 : 2024.10.30
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⟨ 이전 논문 다음 논문 ⟩

초록

분리막 공정 설계에 있어 응용 분야에 적합한 막 소재 및 물성 선택은 중요하다. 특히 다공성 막의 경우, 분리 메커니즘이 투과 종 크기에 따라 선별되는 원리에 기반함에 따라 기공 크기와 같은 기공 특성을 확인하는 막 소재 스크리닝이 우선되어야 한다. 하지만 일반적으로 분리막 매질 내의 기공들은 불균일하게 형성된다. 본 논문에서는 이러한 불균일성을 정규화한 기공 크기 분포도 분석 기법들에 대해 중점적으로 다루고 각 기법들이 기반한 Young-Laplace, Kelvin 그리고 Gibbs-Thomson 식에 대해 소개하고자 한다.

Selecting an appropriate membrane for a given application is essential. In microporous membranes, the separation mechanism relies on size exclusion, meaning that the pore size determines which substances can permeate. Therefore, pore characterization techniques are employed beforehand to identify the most suitable material. However, pore geometry and tortuosity are typically random within the membrane matrix. This paper reviews indirect methods for characterizing pore size distribution, utilizing three key equations-the Young-Laplace, Kelvin, and Gibbs-Thomson equations-to account for the random nature of the pores.

키워드

과제정보

This work was supported by the Materials & Components Technology Development Program (Project number: 20011497) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea).

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