| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-환경·에너지 |
| 제목 |
Nanostructuralengineering of electrospunscaffolds for direct fabrication of dense pervaporationmembranes |
| 초록 |
Interfacial engineering of polyvinyl alcohol (PVA)/carbon nanotube (CNT) electrospun fibers was studied to fabricate dense membranes in a simple way. Ethanol and water were used as nonsolvent and solvent, respectively, toalter the nanoscopic configuration of the electrospun fibers through interfacial solvent interactions. PVA/CNT electrospun mats with micron-sized pores (>100 μm) wereprepared by optimizing electrospinning conditions. Porous electrospun mats werecompacted by immersing them in ethanol. These mats exhibited asymmetricclose-packed top and bottom layers and porous intermediate layers. The electrospun mats were further consolidated using water to fuse the electrospun fibers. The prepared dense filmsexhibited high water/ethanol selectivity and water flux comparable with membranes using conventional methods. Thus, the simple interfacialengineering of the electrospun mat presented in this work successfullygenerates high-performance PVA/CNT membranes using simplemethod. |
| 저자 |
김민하, 이평수
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| 소속 |
중앙대 |
| 키워드 |
electrospinning; interfacial engineering; carbon nanotube (CNT); polyvinyl alcohol (PVA); pervaporation; and alcohol dehydration
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| E-Mail |
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