Fabrication of poly(vinylidene fluoride) membrane <i>via</i> thermally induced phase separation using ionic liquid as green diluent

Xiaozu Wang; Xiaogang Li; Juan Yue; Yangming Cheng; Ke Xu; Qian Wang; Fan Fan; Zhaohui Wang; Zhaoliang Cui

doi:10.1016/j.cjche.2020.01.011

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Fabrication of poly(vinylidene fluoride) membrane via thermally induced phase separation using ionic liquid as green diluent

Materials and Product Engineering | Updated：2026-01-06

- Fabrication of poly(vinylidene fluoride) membrane via thermally induced phase separation using ionic liquid as green diluent
- Fabrication of poly(vinylidene fluoride) membrane via thermally induced phase separation using ionic liquid as green diluent
- 中国化学工程学报（英文版） 2020年28卷第5期页码：1415-1423
- Affiliations：
  
  1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University,Nanjing,China,210009
  2. Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM), Nanjing Tech University,Nanjing,China,210009
  3. National Engineering Research Center for Special Separation Membrane, Nanjing Tech University,Nanjing,China,210009
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.01.011
  中图分类号：
- 纸质出版：2020
- Accepted：
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Xiaozu Wang, Xiaogang Li, Juan Yue, 等. Fabrication of poly(vinylidene fluoride) membrane via thermally induced phase separation using ionic liquid as green diluent[J]. 中国化学工程学报（英文版）, 2020,28(5):1415-1423. DOI: 10.1016/j.cjche.2020.01.011.

thermally induced phase separation using ionic liquid as green diluent[J]. 中国化学工程学报, 2020, 28(5): 1415-1423.
Xiaozu Wang, Xiaogang Li, Juan Yue, 等. Fabrication of poly(vinylidene fluoride) membrane via thermally induced phase separation using ionic liquid as green diluent[J]. 中国化学工程学报（英文版）, 2020,28(5):1415-1423. DOI: 10.1016/j.cjche.2020.01.011. DOI：

thermally induced phase separation using ionic liquid as green diluent[J]. 中国化学工程学报, 2020, 28(5): 1415-1423. DOI： 10.1016/j.cjche.2020.01.011.

摘要

Abstract

Ionic liquid (IL)

1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM

]

PF6) as a new and environmentally friendly diluent was introduced to prepare poly(vinylidene fluoride) (PVDF) membranes

via

thermally induced phase separation (TIPS). Phase diagram of PVDF/[BMIM

]

PF6 was measured. The effects of polymer concentration and quenching temperature on the morphologies

properties

and performances of the PVDF membranes were investigated. When the polymer concentration was 15 wt%

the pure water flux of the fabricated membrane was up to nearly 2000 L·m

-2

·h

-1

along with adequate mechanical strength. With the increasing of PVDF concentration and quenching temperature

mean pore size and water permeability of the membrane decreased. SEM results showed that PVDF membranes manufactured by ionic liquid (BMImPF6) presented spherulite structure. And the PVDF membranes were represented as β phase by XRD and FTIR characterization. It provides a new way to prepare PVDF membranes with piezoelectric properties.

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Fabrication of poly(vinylidene fluoride) membrane via thermally induced phase separation using ionic liquid as green diluent

Fabrication of poly(vinylidene fluoride) membrane via thermally induced phase separation using ionic liquid as green diluent

DOI：10.1016/j.cjche.2020.01.011

摘要

Abstract

关键词

Keywords

references