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Composite proton exchange membranes produced using chitosan and kaolin solvent-free fluid

  • Chun-Chun Huang EMAIL logo , Syang-Peng Rwei , Yun-Shao Huang and Yao-Chi Shu
Published/Copyright: January 24, 2020
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 40 Issue 6

Abstract

In this study, composite membranes produced by combining both biopolymer chitosan (CS) and kaolin solvent-free fluid (kaolin-SF) were used as substitutes for the electrolyte membranes in direct-methanol fuel cells. To improve the interfacial morphologies between organic and inorganic substances, kaolin-SF was prepared using the ion exchange method. Subsequently, kaolin-SF of various doping proportions was mixed with CS crosslinked with sulfuric acid to produce thin membranes. The results of heat exhaustion and scanning electron microscope image analysis indicated that kaolin-SF was successfully doped into the CS polymer substrates, and this addition enhanced the thermal stability and mechanical properties of the CS polymer substrates. As long as the concentration of kaolin-SF was below 5 wt.%, the water absorption rate and proton conductivity of the CS/kaolin-SF composite membranes increased along with the kaolin-SF content. These results indicate that CS/kaolin-SF composite membranes are suitable for practical applications.

Keywords: chitosan; direct-methanol fuel cells; kaolin solvent-free fluid; organic–inorganic composite

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Received: 2019-10-30
Accepted: 2019-12-11
Published Online: 2020-01-24
Published in Print: 2020-07-28

©2020 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Special issue on industrial membranes
  4. Material properties
  5. Polymer genome–based prediction of gas permeabilities in polymers
  6. High gas permeability of nanoZIF-8/polymer-based mixed matrix membranes intended for biogas purification
  7. Polyacrylonitrile homogeneous blend hollow fiber membrane with stable structure as a substrate to support Fe/Mn oxide and its enhanced capability to purify dye wastewater
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  10. Electrospun polyacrylonitrile/polyvinyl pyrrolidone composite nanofibrous membranes with high-efficiency PM2.5 filter
  11. Composite proton exchange membranes produced using chitosan and kaolin solvent-free fluid
  12. Evaluation of the bioactive properties of Alternanthera sessilis extract and development of sodium alginate – Alternanthera sessilis membrane for wound management
  13. Blend polyethersulfone/zirconium oxychloride octahydrate membranes crosslinked by polyvinyl alcohol layer for high saline water desalination
  14. Engineering and processing
  15. Recent developments on polymeric membranes for CO2 capture from flue gas
https://doi.org/10.1515/polyeng-2019-0332
Keywords for this article
chitosan; direct-methanol fuel cells; kaolin solvent-free fluid; organic–inorganic composite

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Special issue on industrial membranes
  4. Material properties
  5. Polymer genome–based prediction of gas permeabilities in polymers
  6. High gas permeability of nanoZIF-8/polymer-based mixed matrix membranes intended for biogas purification
  7. Polyacrylonitrile homogeneous blend hollow fiber membrane with stable structure as a substrate to support Fe/Mn oxide and its enhanced capability to purify dye wastewater
  8. Preparation and assembly
  9. Thiophene-based Schiff base ligand as ionophore for Ni(II)-selective polyvinyl chloride membrane electrode
  10. Electrospun polyacrylonitrile/polyvinyl pyrrolidone composite nanofibrous membranes with high-efficiency PM2.5 filter
  11. Composite proton exchange membranes produced using chitosan and kaolin solvent-free fluid
  12. Evaluation of the bioactive properties of Alternanthera sessilis extract and development of sodium alginate – Alternanthera sessilis membrane for wound management
  13. Blend polyethersulfone/zirconium oxychloride octahydrate membranes crosslinked by polyvinyl alcohol layer for high saline water desalination
  14. Engineering and processing
  15. Recent developments on polymeric membranes for CO2 capture from flue gas
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