| 학회 |
한국화학공학회 |
| 학술대회 |
2011년 가을 (10/26 ~ 10/28, 송도컨벤시아) |
| 권호 |
17권 2호, p.1246 |
| 발표분야 |
공업화학 |
| 제목 |
Enhanced properties and performance of composite RO membrane containing HBP-g-silica |
| 초록 |
The reverse osmosis (RO) membranes were fabricated based on hyper-branched aromatic polyamide grafted silica nano particles (HBP-g-silica) to improve the salt rejection and water permeation performance. The properties of synthesized HBP-g-silica were characterized by Fourier transform infrared (FT-IR) spectrum and thermal gravimetric analyses (TGA). The FT-IR spectrum and TGA confirmed that HBP-g-silica was successfully conjugated to the aromatic polyamide onto nano-silica, and the amount of amino groups on the HBP-g-silica was measured 13 %. The composite RO membranes were characterized by FT-IR and scanning electron microscopy (SEM). The performance of RO membranes were tested with 2,000mg/L NaCl solution at an applied pressure of 15.5 bars. The composite RO membrane containing HBP-g-silica showed better salt rejection than conventional polyamide (PA) membrane and PA with neat silica membrane. These results demonstrate the HBP-g-silica which had high concentration of amide groups was effective to improve the performance. |
| 저자 |
박시영, 김상곤, 전병희, 김성현
|
| 소속 |
고려대 |
| 키워드 |
ROmembrane; chlorine resistance; silica nano particle
|
| E-Mail |
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| 원문파일 |
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