Development of Chemical Resistance Hollow Fiber Microfiltration Membrane Using Poly(Ethylene Chlorotrifluoroethylene)
The majority of water filtration membranes are produced from fairly robust engineering polymers like PVDF and polymers of the polysulfone family (PSf/PES). Chemical properties such as oxidation resistance and long time stability in water are generally sufficient for most applications in water filtration. However, in some cases, the chemical stability of these polymers is insufficient.Poly(ethylene chlorotrifluoroethylene) (ECTFE) is a copolymer of ethylene and chlorotrifluoroethylene that has greater chemical and wear resistance than most other fluorinated polymers with an excellent combination of chemical and mechanical properties. In addition, ECTFE has good thermal stability as evidenced by a relatively high continuous use temperature more than 150℃. These attractive chemical, physical and mechanical properties make ECTFE a very desirable polymer for membrane applications.In this study, ECTFE hollow fiber micro-filtration membrane was fabricated by the non-solvent induced phase separation method. ECTFE membranes were characterized via scanning electron microscopy (SEM), pore size distribution, tensile strength, chemical resistance with pH and pure water permeation. These results indicated that membranes have asymmetric structure with continuous pores and narrow pore distribution having diameters in the microfiltration range (0.1 um) could be reliably fabricated.
Poly(Ethylene Chlorotrifluoroethylene) Waste water treatment Non-solvent induced phase separation Chemical resistance membrane Hollow fiber membrane
Dae-Hoon Kim Hyung-Mo Yang Hyun-Chul Hu
R&D Institute, Woongin Chemical Co., Ltd., Suwon 443-270, Korea
国内会议
青岛
英文
252-255
2012-06-26（万方平台首次上网日期，不代表论文的发表时间）