PVDF Membrane has been used as material for the UF membrane through in-situ interfacial polymerization (IP) because of it’s outstanding properties such as high chemical resistance, thermal stability, and mechanical strength. In this study, surface morphology change of PVDF membrane was researched depending on evaporation time. 13% PVDF 6020 was used for casting and the evaporation time period was from 5s to 600s. The surface morphology of the membrane was investigated by scanning electron microscopy (SEM) and filtration was conducted in the cross flow method to evaluate the a performance of UF membrane. As a result, average pore size was increased with longer evaporation times which caused the decrease of rejection.

• 조형준(연세대학교 화학생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Hyung Jun Jo
• 이주성(연세대학교 화학생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Ju Sung Lee
• 이현호(한국상하수도협회, Water Industry Team, Korea water and wastewater Works association) | Hyun Ho Lee
• 민병렬(연세대학교 화학생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Byoung Ryul Min