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J. Korean Ceram. Soc. > Volume 42(3); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(3): 165.
doi: https://doi.org/10.4191/kcers.2005.42.3.165
TEOS-PEG계 Sol-Gel코팅에 의한 세라믹 분리 막의 제조 및 특성
김태봉, 최세영1, 김구대2
연세대학교 세라믹공학과, 한국과학기술연ㄱ원 나노재료연구센터
1연세대학교 세라믹공학과
2한국과학기술연구원 나노재료연구센터
Characterization of Ceramic Composite-Membranes Prepared by TEOS-PEG Coating Sol
Tae-Bong Kim, Se-Young Choi1, Goo-Dae Kim2
Department of Ceramic Engineering, Yonsei University, Nano-Material Research Center, Korea Institute of Science and Technology
1Department of Ceramic Engineering, Yonsei University
2Nano-Material Research Center, Korea Institute of Science and Technology
Sol-gel methods offer many advantages over conventional slip-casting, including the ability to produce ceramic membranes. They are purer, more homogeneous, more reactive and contain a wider variety of compositions. We produced ormosil sol using sol-gel process under various molecular weight of polymer species[polyethylene glycol(PEG)] in total system [Tetraethyl ortho silicate(TEOS)-polyethylene glycol(PEG)]. The properties of as-prepared ormosil sol such as viscosity and gelation time are characterized. Also, the ceramic membrane was prepared by dip-coating with synthetic sol and its microstructure was observed by scanning electron microscopy. The permeability and rejection efficiency of membrane for oil/water emulsion were evaluated as cross
Key words: Ormosil sol, Crack resistance, Ultra-filter and micro-filter
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