ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
ISSN : 2288-7253(Online)
Membrane Journal Vol.24 No.2 pp.107-112
DOI : https://doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.2.107
DOI : https://doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.2.107
다공성 PVDF 막의 polyamide 계면중합법처리를 통한 나노 중공사 복합막 제조 연구
Study on the Hollow Fiber Nano-composite Membrane Preparation onto the Porous PVDF Membrane Surfaces using the Interfacial Polymerization
(Received March 2, 2014, Reivised April 23, 2014, Accepted April 24, 2014)
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 ofpiperazine (PIP), trimesoyl chloride (TMC) and the contents of polyethylene glyco l (PEG). The separation characterizationof the resulting membranes were carried out for aqueous 100 ppm solution of NaCl, CaSO4, and MgCl2 and also mixed 300ppm solution of NaCl and CaSO4 in terms of the flux and rejection. Both the flux and rejection were the highest when theinterfacial polymerization was conducted using TMC. When TMC concentration was 0.1 wt%, the flux and rejection wereshown 48.3 LMH (L/m2 · hr) and 59%, respectively. To improve the flux, the annealing post-treatment and the addition ofPEG into piperazine were done. As expected, the overall flux was enhanced while the rejection was reduced.