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Surface Area Evaluation of Electrically Conductive Polymer-Based Textiles.

Lukas Vojtech1, Marek Neruda2, Tomas Reichl3

  • 1Department of Telecommunication Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, 166 27 Prague, Czech Republic. vojtecl@fel.cvut.cz.

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This study quantifies the surface area of coated polymer textiles using geometrical and electrochemical methods. Copper and nickel plated woven polyester fabrics exhibit the largest surface area, crucial for supercapacitor development.

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Area of Science:

  • Materials Science
  • Textile Engineering
  • Electrochemistry

Background:

  • Coated polymer-based textiles are crucial for advanced applications like supercapacitors.
  • Accurate surface area determination is vital for optimizing electrochemical performance.
  • Existing methods may not fully capture the complex surface topography of coated textiles.

Purpose of the Study:

  • To investigate and compare the surface area of various coated polymer-based textiles.
  • To extend Peirce's geometrical model for accurate surface area evaluation of multifilament yarns.
  • To validate modeling techniques with electrochemical measurements for surface area assessment.

Main Methods:

  • Utilized Peirce's geometrical model and electron microscopy for woven fabrics.
  • Employed optical, handmade, and MATLAB methods for non-woven fabrics.
  • Applied an electrochemical resistance-based method for relative surface area comparison.

Main Results:

  • Extended Peirce's model successfully for multifilament yarns and uniform samples.
  • Geometrical and electrochemical methods showed consistent increasing trends in surface area.
  • Copper and nickel plated woven polyester fabric demonstrated the largest surface area among the tested samples.

Conclusions:

  • The developed methods provide reliable surface area evaluation for coated polymer textiles.
  • Findings are applicable to the design and development of supercapacitors, electrochemical cells, and catalysts.
  • Surface area ranking identified copper and nickel plated woven polyester as having the highest surface area.