Ion exchange fabric synthesized by graft polymerization and its application to ultra-pure water production |
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| Authors: | T. Takeda M. Tamada N. Seko Y. Ueki |
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| Affiliation: | 1. Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea;2. Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-742, Republic of Korea;3. Semiconductor R&D Center, Samsung Electronics Co., Ltd., Hwasung 445-701, Republic of Korea;4. Energy Semiconductor Research Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270, Republic of Korea;1. School of Civil, Environmental and Chemical Engineering, RMIT University, GPO Box 2476, Melbourne, 3001, Australia;2. Faculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australia |
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| Abstract: | Ion exchange fabric (IEF) having the functional group of sulfonic acid was synthesized by radiation grafting of glycidyl methacrylate on a polyethylene nonwoven fabric and subsequent chemical modification. Total organic carbon eluted from the resulting IEF could be reduced to the concentration less than 1 ppb after washing with organic solvents. Adsorption performance of the obtained IEF was evaluated by 10 ppb Na+ solution. The column packed IEF, 7 mm in diameter and 20 mm high, could remove the Na+ at the distribution coefficient of 1.2×107 at linear velocity of 400 m/h. At column height of 95 mm, the breakthrough point reached 2.0×105 in bed volume and the degree of column utilization was improved up to 18.7%. From these results, the IEF synthesized by graft polymerization was considered to be applicable for water purification in ultra-pure water production. |
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