| 학회 | 한국공업화학회 |
| 학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 26권 1호 |
| 발표분야 | 포스터-환경·에너지 |
| 제목 | Versatile Co-solvent Approach for Hydrophilic Surface Modification of Polytetrafluoroethylene (PTFE) Membrane |
| 초록 | Poly(tetrafluoroethylene)(PTFE) membrane exhibits excellent chemical and thermal stability, which ishighly desirable in chemical separation processes under harsh operatingconditions. However, the hydrophobicity of PTFE membranes limits its uses inindustrial application. We report a facile co-solvent approach to functionalizeporous PTFE membranes by coating crosslinked poly(vinyl alcohol) (XLPVA) layer(< 20 nm). By using alcohol/water co-solvents, PVA solution penetrated to theinner pore networks of PTFE membrane without pretreatments. The XLPVA-coatedPTFE membranes showed enhanced hydrophilicity with decreasing crosslinking timecompared to other literature. The resulted PTFE membranes were highlywater-permeable without any pretreatment, exhibiting a water flux of ~200LMH/bar with improved micropollutant rejection (~99%). |
| 저자 | 윤채원, 장준규, 이태훈, 박호범 |
| 소속 | 한양대 |
| 키워드 | Poly(tetrafluoroethylene); PTFE; hydrophilicity; surface modification; wettability; hydrophobicity |
