한국고분자학회:학술대회논문집 (Proceedings of the Polymer Society of Korea Conference)
- 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
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- Pages.354-354
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- 2006
Alginic acid-silica hydrogel coatings for the protection of ssmotic distillation membranes against wet-out by surface-active agents
- Xu, J.B. (School of Physical and Chemical Sciences, Queensland University of Technology) ;
- Spittler, D.A. (Department of Material Sciences and Chemical Engineering, University of Applied Sciences Osnabrueck) ;
- Bartley, J.P. (School of Physical and Chemical Sciences, Queensland University of Technology) ;
- Johnson, R.A. (School of Physical and Chemical Sciences, Queensland University of Technology)
- 발행 : 2006.10.13
초록
Alginic acid-silica hydrogel films was prepared for testing as protective coating materials for PTFE OD membranes. Unprotected hydrophobic membranes are subject to wet-out when contacted by surface-active agents. Films were characterised using SEM, XRD, DSC, mechanical strength measurements, and water-swelling measurements. In OD trials using coated membranes, no wet-out occurred over the 15 h duration of three consecutive 5 h OD trials using orange oil-water mixtures. In the case of detergent solutions, the coating afforded protection to the membrane for 4-5 h. In a separate trial, no wet-out occurred when the coated side of the membrane was placed in contact with 1.2 wt % orange oil for 72 hours.
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