Electrospinning organic solvent resistant preoxidized poly(acrylonitrile) nanofiber membrane and its properties

Zhiwei Du; Jinxue Cheng; Qinglin Huang; Mingxing Chen; Changfa Xiao

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Electrospinning organic solvent resistant preoxidized poly(acrylonitrile) nanofiber membrane and its properties

Full Length Article | Updated：2026-01-06

- Electrospinning organic solvent resistant preoxidized poly(acrylonitrile) nanofiber membrane and its properties
- Chinese Journal of Chemical Engineering Vol. 53, Issue 1, Pages: 289-299(2023)
- Affiliations：
  
  1. State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes,Tianjin,China,300387
  2. Department of Material Science and Engineering, Tiangong University,Tianjin,China,300387
  3. College of Textile and Garments, Hebei University of Science and Technology,Shijiazhuang,China,050018
  4. Fiber Materials Research Center, Shanghai University of Engineering Science,Shanghai,China,201620
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2023
- Accepted：
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Zhiwei Du, Jinxue Cheng, Qinglin Huang, Mingxing Chen, Changfa Xiao. Electrospinning organic solvent resistant preoxidized poly(acrylonitrile) nanofiber membrane and its properties[J]. Chinese Journal of Chemical Engineering, 2023, 53(1): 289-299.
DOI：

Zhiwei Du, Jinxue Cheng, Qinglin Huang, Mingxing Chen, Changfa Xiao. Electrospinning organic solvent resistant preoxidized poly(acrylonitrile) nanofiber membrane and its properties[J]. Chinese Journal of Chemical Engineering, 2023, 53(1): 289-299. DOI：

摘要

Abstract

A high performance preoxidized poly(acrylonitrile) (O-PAN) nanofiber membrane with excellent solvent resistance

thermal stability and flexibility was fabricated by the preoxidation of electrospun PAN nanofiber membrane. The performance of resultant O-PAN nanofiber membrane was optimized by altering the PAN concentration and preoxidation temperature. The results showed that the O-PAN nanofiber membrane which made from PAN concentration of 14% (mass) and preoxidation temperature of 250.0 ℃ have a more optimal comprehensive performance. In the long-term separation test of SiO

particle (1 μm) in DMAc suspension

the permeate flux of O-PAN nanofiber membrane stabilized at 227.91 L·m

-2

·h

-1

(25 ℃

0.05 MPa) while the SiO

rejection above 99.6%

which showed excellent solvent resistance and separation performance. In order to further explore the application of the O-PAN nanofiber membrane

the O-PAN nanofiber membrane was treated with fluoride and used in oil/water separation process. The O-PAN nanofiber membrane after hydrophobic treatment showed excellent hydrophobicity and good oil/water separation performance with the permeate flux about 969.59 L·m

-2

·h

-1

while the separation efficiency above 96.1%. The O-PAN nanofiber membrane exhibited a potential application prospect in harsh environment separation.

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