Citation: Jian-hua Wang, Yue-li Wu, Yong-hua Zhang, Bao-ku Zhu, You-yi Xu. Fabrication and Performance of a Low Operating Pressure Nanofiltration Poly(vinyl chloride) Hollow Fiber Membrane[J]. Chinese Journal of Polymer Science, ;2014, 32(3): 377-384. doi: 10.1007/s10118-014-1374-4 shu

Fabrication and Performance of a Low Operating Pressure Nanofiltration Poly(vinyl chloride) Hollow Fiber Membrane

1.
MOE Key Laboratory of Macromolecular Synthesis and Functionalization,MOE Engineering Research Center of Membrane and Water Treatment Technology, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding author: Bao-ku Zhu, ms630@zju.edu.cn
Received Date: 9 June 2013
Revised Date: 7 August 2013

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 20974094), National 973 Program (No. 2009CB623402), and Postdoctoral Science Foundation funded project of Zhejiang Province, China (Bsh1202045).

A low operating pressure nanofiltration membrane is prepared by interfacial polymerization between m-phenylenediamine (MPDA) and trimesoyl chloride (TMC) using PVC hollow fiber membrane as supporting. A series of PVC nanofiltration membranes with different molecular weight cutoff (MWCO) can be obtained by controlling preparation conditions. Chemical and morphological characterization of the membrane surface was carried out by FTIR-ATR and SEM. MWCO was characterized by filtration experiments. The preparation conditions were investigated in detail. At the optimized conditions (40 min air-dried time, aqueous phase containing 0.5% MPDA, 0.05% SDS and 0.6% acid absorbent, oil phase containing 0.3% TMC, and 1 min reaction time), under 0.3 MPa, water flux of the gained nanofiltration membrane reaches 17.8 L/m2h, and the rejection rates of methyl orange and MgSO4 are more than 90% and 60%, respectively.
- PVC,
- Interfacial polymerization,
- Nanofiltration membrane,
- Hollow fiber membrane
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