| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Nano-structured Polyamide Membranes for Desalination Applications |
| 초록 |
Polyamide(PA) layer is one of the important elements in reverse osmosis water desalination. Conventional technique has usually used an interfacial polymerization method at the hexane-water interface to fabricate PA thin films which however consist of high surface roughness. In this work, we prepared the flat PA films with a uniform thickness of around 5 nm. The PA film structure was characterized in aqueous solution with and without NaCl in D2O by in situ and ex situ measurements of neutron reflectivity and X-ray reflectivity, respectively. From the result, we precisely determine the swollen thickness of the PA layer as a function of time and salt concentration. We compared these structural properties with the salt rejection and water flux rate for practical desalination applications. |
| 저자 |
정승엽1, 장지원1, Guangcui Yuan2, Sushil K. Satija3, 구자승2
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| 소속 |
1충남대, 2Center for Neutron Research, 3National Institute of Standards and Technology |
| 키워드 |
Membranes; Desalination; Thin films; neutron reflectivity
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| E-Mail |
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