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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.2.107

Study on the Hollow Fiber Nano-composite Membrane Preparation onto the Porous PVDF Membrane Surfaces using the Interfacial Polymerization  

Kang, Su Yeon (Department of Chemical Engineering, Hannam University)
Cho, Eun Hye (Department of Chemical Engineering, Hannam University)
Kim, Ihl hyung (Department of Chemical Engineering, Hannam University)
Kim, Cheong Sik (Techwin Co. Ltd.)
Rhim, Ji Won (Department of Chemical Engineering, Hannam University)
Publication Information
Membrane Journal / v.24, no.2, 2014 , pp. 107-112 More about this Journal
Abstract
The composite membranes were prepared on the surface of hydrophobic porous poly (vinylidene fluoride) (PVDF) hollow fiber membranes through the interfacial polymerization. The preparation variables were the concentrations of piperazine (PIP), trimesoyl chloride (TMC) and the contents of polyethylene glyco l (PEG). The separation characterization of the resulting membranes were carried out for aqueous 100 ppm solution of NaCl, $CaSO_4$, and $MgCl_2$ and also mixed 300 ppm solution of NaCl and $CaSO_4$ in terms of the flux and rejection. Both the flux and rejection were the highest when the interfacial polymerization was conducted using TMC. When TMC concentration was 0.1 wt%, the flux and rejection were shown 48.3 LMH ($L/m^2{\cdot}hr$) and 59%, respectively. To improve the flux, the annealing post-treatment and the addition of PEG into piperazine were done. As expected, the overall flux was enhanced while the rejection was reduced.
Keywords
Poly (vinylidene fluoride); Piperazine; triethyl amine; Interfacial polymerization; annealing;
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