화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.12, No.6, 553-558, December, 2004
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Effects of Surface Modification of the Membrane in the Ultrafiltration of Waste Water
Dong Lyun Cho†, Sung-Hyun Kim, Yang Il Huh, Doman Kim, Sung Yong Cho1, and Byung-Hoon Kim2
  • Faculty of Applied Chemical Engineering and The Engineering Research Institute, Chonnam National University, 300 Yongbong, Buk, Gwangju 500-757, Korea
  • 1Department of Environmental Engineering, Chonnam National University, 300 Yongbong, Buk, Gwangju 500-757, Korea
  • 2The Engineering Research Institute, Chonnam National University, 300 Yongbong, Buk, Gwangju 500-757, Korea
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An ultrafiltration membrane (polyethersulfone, PM10) was surface-modified by treating it with low-temperature plasmas of oxygen, acrylic acid (AA), acetylene, diaminocyclohexane (DACH), and hexamethyldisiloxane (HMDSO). The effects that these modifications have on the filtration efficiency of a membrane in waste water treatment were investigated. The oxygen, AA, and DACH plasma-treated membranes became more hydrophilic. The water contact angles ranged from < 10° to 55° depending on the type of plasma and the treatment conditions. The oxygen plasma-treated membranes displayed a higher initial flux (312-429%), but lower rejection (6-91%), than did an untreated membrane. The AA plasma-treated membranes displayed lower or higher initial flux (42-156%), depending upon the treatment conditions, but higher rejection (224-295%) in all cases. The DACH plasma-treated membranes displayed lower initial flux. All of them, especially the AA plasma-treated membrane, displayed improved fouling resistance with either a slower or no flux decline. Acetylene and HMDSO plasma-treated membranes became more hydrophobic and displayed both lower initial flux and lower fouling resistance.
Keywords:flux;fouling resistance;plasma surface modification;rejection;ultrafiltration membrane
  1. Kesting RE, Synthetic Polymer Membranes, A Structural Perspective, 2nd ed., Wiely, New York (1985)
  2. Bause H, Chmiel H, Stroh N, Walitza E, J. Membr. Sci., 27, 195 (1986) 
  3. Cho DL, Ekengren O, J. Appl. Polym. Sci., 47, 2125 (1993) 
  4. Cho DL, Lee J, Polym.(Korea), 21(1), 142 (1997)
  5. Kim KJ, Fane AG, J. Membr. Sci., 99(2), 149 (1995) 
  6. Sadath RH, Taylor DR, Li NN, Separation Science and Technology, 28, 255 (1993)
  7. Giodarno PJ, Smerciak RC, U.S. Pat. 4,784,769 (1988)
  8. Zhao ZP, Li J, Zhang DX, Chen CX, J. Membr. Sci., 232, 1 (2004) 
  9. Kim KS, Lee KH, Cho K, Park CE, J. Membr. Sci., 199, 135 (2004) 
  10. Wavhal DS, Fisher ER, J. Membr. Sci., 209(1), 255 (2002) 
  11. Yasuda H, Plasma Polymerization, Academic Press, New York (1985)
  12. Cho DL, Claesson PM, Golander CG, Johansson K, J. Appl. Polym. Sci., 41, 1373 (1993)
  13. Golander CG, Rutland MW, Cho DL, Johansson A, Ringblom H, Jonsson S, Yasuda HK, J. Appl. Polym. Sci., 49, 39 (1993)