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Antifouling improvement of a polyacrylonitrile membrane blended with an amphiphilic copolymer

  • Jianlong Hu , Yingfang He , Peng Liu und Xiang Shen EMAIL logo
Veröffentlicht/Copyright: 25. Februar 2022
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International Polymer Processing
Aus der Zeitschrift International Polymer Processing Band 37 Heft 1

Abstract

The amphiphilic copolymer polyacrylonitrile-co-poly(hydroxyethyl methacrylate) (PAN-co-PHEMA) was readily blended with polyacrylonitrile (PAN) to fabricate a flat-sheet blending membrane through non-solvent induced phase separation (NIPS). In the membrane-forming process, the hydrophilic PHEMA chains are uniformly distributed on the surface, as revealed by the energy-dispersive X-ray tests. The sponge-like sub-layer embedded with droplet-shaped structures is formed at the cross-sections of membranes, because of the high viscosity of the casting solution. With the increase of copolymer concentration, the mean pore size of the blending membranes increases from 26.9 to 99.8 nm, leading to the increase of membrane flux from 93.6 to 205.4 l/(m2h). The incorporation of PAN-co-PHEMA copolymer endows the blending membrane with a rough surface microstructure and enhanced hydrophilicity. The rejection ratio of membranes for emulsified pump oil reaches 99.9%, indicating a prominent separation performance. In the cycle permeation experiments, the flux recovery ratio of the blending membranes is as high as 99.6%, which is much higher than those of PAN membrane. The irreversible fouling of blending membranes induced by oil adsorption is alleviated, and converted into reversible fouling, owing to the reduction of the adhesion force between foulant and membrane surface. These results suggest that the anti-fouling property of PAN membranes has been dramatically strengthened via the addition of PAN-co-PHEMA copolymer.

Keywords: antifouling; blending membrane; hydrophilicity; hydroxyethyl methacrylate; polyacrylonitrile
Corresponding author: Xiang Shen, College of Chemistry and Environmental Science, Qujing Normal University, Qujing 655011, PRC, E-mail:

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 51703118

Funding source: Yunnan Local Colleges Research Projects

Award Identifier / Grant number: 2019FH001-006

Funding source: Program for Chinese College Student Innovation Training

Award Identifier / Grant number: 202010684019 and 202010684028

Funding source: Program for Young and Middle-aged Leaders in Yunnan Academic and Technical Fields

Award Identifier / Grant number: 2019HB059

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The funding supports of present work are kindly provided by National Natural Science Foundation of China (51703118), Yunnan Local Colleges Research Projects (2019FH001-006), Program for Chinese College Student Innovation Training (202010684019 and 202010684028), and Program for Young and Middle-aged Leaders in Yunnan Academic and Technical Fields (2019HB059).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-08-22
Accepted: 2021-10-22
Published Online: 2022-02-25
Published in Print: 2022-03-28

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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  1. Frontmatter
  2. Research Articles
  3. Process parameter optimization for Fused Filament Fabrication additive manufacturing of PLA/PHA biodegradable polymer blend
  4. Preparation and application of carbon black-filled rubber composite modified with a multi-functional silane coupling agent
  5. Non-isothermal viscoelastic melt spinning with stress-induced crystallization: numerical simulation and parametric analysis
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  8. Modification of self-reinforced composites (SRCs) via film stacking process
  9. Study of distributive mixing in a journal bearing flow geometry
  10. Synthesis and characterization of wood flour modified by graphene oxide for reinforcement applications
  11. Antifouling improvement of a polyacrylonitrile membrane blended with an amphiphilic copolymer
  12. Exploring the applicability of a simplified fully coupled flow/orientation algorithm developed for polymer composites extrusion deposition additive manufacturing
  13. Understanding softening of amorphous materials for FFF applications
  14. News
  15. PPS News
https://doi.org/10.1515/ipp-2021-4175
Schlagwörter für diesen Artikel
antifouling; blending membrane; hydrophilicity; hydroxyethyl methacrylate; polyacrylonitrile

Artikel in diesem Heft

  1. Frontmatter
  2. Research Articles
  3. Process parameter optimization for Fused Filament Fabrication additive manufacturing of PLA/PHA biodegradable polymer blend
  4. Preparation and application of carbon black-filled rubber composite modified with a multi-functional silane coupling agent
  5. Non-isothermal viscoelastic melt spinning with stress-induced crystallization: numerical simulation and parametric analysis
  6. Effect of the amount of oxazoline compatibilizer on the mechanical properties of liquid crystalline polymer/polypropylene blends
  7. Tensile, rheological and morphological characterizations of multi-walled carbon nanotube/polypropylene composites prepared by microinjection and compression molding
  8. Modification of self-reinforced composites (SRCs) via film stacking process
  9. Study of distributive mixing in a journal bearing flow geometry
  10. Synthesis and characterization of wood flour modified by graphene oxide for reinforcement applications
  11. Antifouling improvement of a polyacrylonitrile membrane blended with an amphiphilic copolymer
  12. Exploring the applicability of a simplified fully coupled flow/orientation algorithm developed for polymer composites extrusion deposition additive manufacturing
  13. Understanding softening of amorphous materials for FFF applications
  14. News
  15. PPS News
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