| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 |
16권 1호, p.343 |
| 발표분야 |
분리기술 |
| 제목 |
L-CO2 based coating for modification of poly(vinylidene) fluoride ultrafiltration membrane: The study of monomer concentration effect |
| 초록 |
Membrane fouling due to adsorption and accumulation of proteins, cells,colloids and other rejected NOM on the top surface and in the internal pore wall of the membrane causes decrease in flux, increase in energy demand for filtration and increase in operational and maintenance costs. Hydrophilicization of conventional hydrophobic PVDF has been done by inducing crosslinking reaction of PEGDA on the surface/pore of thePVDF membrane in L-CO2 withAIBN as radical polymerization initiator. The effect of PEGDA concentration on the surface composition was characterized in detail using XPS, FT-IR, EPMA, SEM while the performance of the modified membrane was measured by conducting flux test in dead end filtration apparatus by flowing DDI water andBSA solution as a protein model. The results were compared with pristine PVDF and commercial hydrophilic PvDF. The results showthat in the presence of protein, modified membrane has higher flux compared with pristine PvDF and even commercial hydrophilic PvDF. It also showed better internal fouling resistance. |
| 저자 |
Ratna Frida Susanti, 김재훈, 이영행, 정성일, 양수한, 김재덕
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| 소속 |
한국과학기술(연) |
| 키워드 |
hydrophilicization; coating; liquid carbon dioxide; ultrafiltration
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| E-Mail |
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| 원문파일 |
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