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Advanced Nanotechnologies for Detection and Defence against CBRN Agents pp 285–292Cite as

Dielectric Relaxation in Biocomposites Based on Olive Pomace Grains

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Abstract

A polyester polymer matrix filled with olive-pomace grains was investigated using impedance spectroscopy in the frequency range 100 Hz to 1 MHz and temperatures from 300 to 360 K. Two relaxations processes were identified. One could be attributed to the α relaxation associated with the glass transition and observed in the neat matrix, while the second was attributed to the accumulation of charges at the pomace grains/polyester interfaces. The relaxation parameters were evaluated from isothermal dielectric spectra by applying the empirical Havriliak-Negami function.

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Acknowledgments

The authors acknowledge support from CNRST-Maroc (Centre National de la Recherche Scientifique et Technique) and the FCT-CNRST bilateral cooperation, and FEDER by funds through the COMPETE 2020 Program and National Funds through FCT – Portuguese Foundation for Science and Technology under the project UID/CTM/50025/2013.

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Authors and Affiliations

  1. LASTID Laboratory, Sciences Faculty, Ibn Tofail University, Kenitra, Morocco

    L. Kreit, Z. Samir, I. Bouknaitir & M. E. Achour

  2. LaMaCoP, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia

    A. Triki & A. Kallel

  3. I3N and Physics Department, University of Aveiro, Aveiro, Portugal

    L. C. Costa

  4. LPSCM Laboratory, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco

    A. Oueriagli

  5. Laboratory LGI, Faculty of Sciences and Technics, Sultan Moulay Slimane University, Beni Mellal, Morocco

    M. Mabrouki

Authors
  1. L. Kreit
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  2. Z. Samir
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  3. I. Bouknaitir
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  4. A. Triki
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  5. M. E. Achour
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  6. L. C. Costa
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  7. A. Kallel
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  8. A. Oueriagli
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  9. M. Mabrouki
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Corresponding author

Correspondence to M. E. Achour .

Editor information

Editors and Affiliations

  1. Department of Physics, University of Chemical Technology & Metallurgy, Sofia, Bulgaria

    Plamen Petkov

  2. Department of Physics, Technical University of Moldova, Chisinau, Moldova

    Dumitru Tsiulyanu

  3. Institute of Nanostructure Technologies and Analytics, University of Kassel, Kassel, Germany

    Cyril Popov

  4. Department of Mathematics and Natural Sciences, University of Kassel, Kassel, Germany

    Wilhelm Kulisch

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Kreit, L. et al. (2018). Dielectric Relaxation in Biocomposites Based on Olive Pomace Grains. In: Petkov, P., Tsiulyanu, D., Popov, C., Kulisch, W. (eds) Advanced Nanotechnologies for Detection and Defence against CBRN Agents. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-94-024-1298-7_27

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