The robust design of PMIA braided tube reinforced PFA hollow fiber membranes with graphene doping for water-in-oil separation

Wei Zhao; Xin Jin; Kaikai Chen; Haoyang Ling; Hailiang Liu; Changfa Xiao

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The robust design of PMIA braided tube reinforced PFA hollow fiber membranes with graphene doping for water-in-oil separation

Updated：2026-01-06

- The robust design of PMIA braided tube reinforced PFA hollow fiber membranes with graphene doping for water-in-oil separation
- Chinese Journal of Chemical Engineering Vol. 76, Issue 12, Pages: 105-117(2024)
- Affiliations：
  
  1. School of Materials Science and Engineering, and State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University,Tianjin,China,300387
  2. CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences,Beijing,China,100190
  3. Fiber Materials Research Center, School of Textiles and Fashion, Shanghai University of Engineering Science,Shanghai,China,201620
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2024
- Accepted：
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Wei Zhao, Xin Jin, Kaikai Chen, Haoyang Ling, Hailiang Liu, Changfa Xiao. The robust design of PMIA braided tube reinforced PFA hollow fiber membranes with graphene doping for water-in-oil separation[J]. Chinese Journal of Chemical Engineering, 2024, 76(12): 105-117.
DOI：

Wei Zhao, Xin Jin, Kaikai Chen, Haoyang Ling, Hailiang Liu, Changfa Xiao. The robust design of PMIA braided tube reinforced PFA hollow fiber membranes with graphene doping for water-in-oil separation[J]. Chinese Journal of Chemical Engineering, 2024, 76(12): 105-117. DOI：

摘要

Abstract

In order to solve the problem of oily wastewater

the poly(

-phenyleneisophthalamide) (PMIA) braided tube reinforced (PBR) poly(tetrafluoroethylene-

-perfluoropropyl vinyl ether) (PFA) hollow fiber membrane with thermal and solvent resistant property was prepared

via

no-solvent green method. The membrane surface and pore structure was optimized by changing the sintering temperature and graphene (GE) content. The morphologies showed that the spherical surface with good lipophilicity was formed

and the excellent mechanical strength with a favorable interface bonding state could be obtained due to the PFA melts permeating into the supporting layer. The doping of GE produced synergistic effects with the sintering temperature owing to its good thermal conductivity and pore formation. The PBR-PFA/GE hollow fiber membrane exhibited good hydrophobicity and lipophilicity with more than 97% separation efficiency for different oil products at -0.02 MPa. With the addition of GE

the average pore size first increases and then decreases

and the porosity gradually decreases. In addition

the hollow fiber membrane showed high separation ability to the water-in-oil emulsion

and maintained a stable flux recovery rate after recycling

making it possible to apply in the field of oily wastewater treatment.

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