Tailoring Morphology of PVDF-HFP Membrane <italic style="font-style: italic">via</italic> One-step Reactive Vapor Induced Phase Separation for Efficient Oil-Water Separation

Peng Huo; Cheng-Tang Zhong; Xiao-Peng Xiong

doi:10.1007/s10118-021-2527-x

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Tailoring Morphology of PVDF-HFP Membrane via One-step Reactive Vapor Induced Phase Separation for Efficient Oil-Water Separation

ARTICLE | Updated：2020-12-02

- Tailoring Morphology of PVDF-HFP Membrane via One-step Reactive Vapor Induced Phase Separation for Efficient Oil-Water Separation
- Tailoring Morphology of PVDF-HFP Membrane via One-step Reactive Vapor Induced Phase Separation for Efficient Oil-Water Separation
- Chinese Journal of Polymer Science 2021年39卷第5期页码：610-619
- Affiliations：
  
  Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, China
- Author bio：
  
  xpxiong@xmu.edu.cn
- Funds：
  
  This work was financially supported by the Fundamental Research Funds for the Central Universities of China (No. 20720200040) and the National Natural Science Foundation of China (No. 51273166).
- DOI：10.1007/s10118-021-2527-x
  中图分类号：
- 收稿：2019-08-19，
  
  修回：2020-10-10，
  
  录用：2020-11-11，
  
  网络首发：2020-12-02，
  
  纸质出版：2021-01-01
- Accepted：
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Huo, P.; Zhong, C. T.; Xiong, X. P. Tailoring morphology of PVDF-HFP membrane , via, one-step reactive vapor induced phase separation for efficient oil-water separation. Chinese J. Polym. Sci. 2021, 39, 610–619

Peng Huo, Cheng-Tang Zhong, Xiao-Peng Xiong. Tailoring Morphology of PVDF-HFP Membrane via One-step Reactive Vapor Induced Phase Separation for Efficient Oil-Water Separation[J]. Chinese Journal of Polymer Science, 2021, 39(5): 610-619. DOI: 10.1007/s10118-021-2527-x.
Huo, P.; Zhong, C. T.; Xiong, X. P. Tailoring morphology of PVDF-HFP membrane , via, one-step reactive vapor induced phase separation for efficient oil-water separation. Chinese J. Polym. Sci. 2021, 39, 610–619 DOI： 10.1007/s10118-021-2527-x.

Peng Huo, Cheng-Tang Zhong, Xiao-Peng Xiong. Tailoring Morphology of PVDF-HFP Membrane via One-step Reactive Vapor Induced Phase Separation for Efficient Oil-Water Separation[J]. Chinese Journal of Polymer Science, 2021, 39(5): 610-619. DOI: 10.1007/s10118-021-2527-x. DOI：

摘要

Abstract

Poly(vinylidene fluoride-

-hexafluoropropylene) (PVDF-HFP) receives increasing attention in membrane separation field based on its advantages such as high mechanical strength

thermal and chemical stability. However

controlling the microporous structure is still challenging. In this work

we attempted to tailor the morphology of PVDF-HFP membrane

via

a one-step reactive vapor induced phase separation method. Namely

PVDF-HFP was dissolved in a volatile solvent and then was cast in an ammonia water vapor atmosphere. After complete evaporation of solvent

membranes with adjustable porous structure were prepared

and the microstructures of the membranes were analyzed by scanning electron microscopy

Fourier transform infrared spectroscopy

X-ray photoelectron spectroscopy and X-ray diffraction characterizations. Based on the results

a mechanism of dehydrofluorination induced cross-linking of PVDF-HFP has been suggested to understand the morphology tailoring. To our knowledge

this is the first report of one-step reactive vapor induced phase separation strategy to tailor morphology of PVDF-HFP membrane. In addition

the membranes prepared in the ammonia water vapor exhibited enhanced mechanical strength and achieved satisfactory separation efficiency for water-in-oil emulsions

suggesting promising potential.

关键词

Keywords

references

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Tailoring Morphology of PVDF-HFP Membrane via One-step Reactive Vapor Induced Phase Separation for Efficient Oil-Water Separation

DOI：10.1007/s10118-021-2527-x

摘要

Abstract

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Keywords

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