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      https://www.ias.ac.in/article/fulltext/boms/028/06/0565-0569

    • Keywords

       

      Polypyrrole; fly ash; composites; conductivity.

    • Abstract

       

      in situ polymerization of pyrrole was carried out in the presence of fly ash (FA) to synthesize polypyrrole–fly ash composites (PPy/FA) by chemical oxidation method. The PPy/FA composites have been synthesized with various compositions (10, 20, 30, 40 and 50 wt%) of fly ash in pyrrole. The surface morphology of these composites was studied with scanning electron micrograph (SEM). The polypyrrole–fly ash composites were also characterized by employing X-ray diffractometry (XRD) and infrared spectroscopy (IR). The a.c. conductivity behaviour has been investigated in the frequency range 102–106 Hz. The d.c. conductivity was studied in the temperature range from 40–200°C. The dimensions of fly ash in the matrix have a greater influence on the observed conductivity values. The results obtained for these composites are of greater scientific and technological interest.

    • Author Affiliations

       

      M V Murugendrappa1 Syed Khasim2 M V N Ambika Prasad3

      1. Department of Physics, GM Institute of Technology, Davangere 577 006, India
      2. Department of Physics, KBN College of Engineering, Gulbarga 585 104, India
      3. Department of Materials Science and Physics, Gulbarga University, Gulbarga 585 106, India
    • Dates

       
  • Bulletin of Materials Science | News

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