Wood Science and Technology

, Volume 52, Issue 3, pp 637–651 | Cite as

Charge-trapping capability and AC conductivity at different humidities of poly(ethyleneimine)–TiO2–anthocyanin-modified cellulose fibres

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Abstract

Modified cellulose materials are finding increasing application in electronics, because of the need for more environmental-friendly electronic circuits. The papers prepared from poly(ethyleneimine)–TiO2–anthocyanin-modified cellulose fibres are completely environmentally friendly and can be applied to the construction of photocells or photo-/humidity sensors. To better understand the mechanisms of electrical conductivity of the said cellulose composites, the effect of humidity (RH = 9% → 100%) on its dielectric properties is presented in this article. The possibility of trapping the negative and positive charges in the composite under different humidity conditions is also examined. A large number of studies suggest that proton conductivity, stimulated by humidity, is the dominant mechanism of electrical conductivity in cellulose-based materials. The results presented in this paper indicate that the electronic conductivity mechanisms also play a significant role in papers prepared from poly(ethyleneimine)–TiO2–anthocyanin-modified cellulose fibres.

Notes

Acknowledgements

This work was supported in part by the Ministry of Education and Science, Republic of Serbia (Project Nos. 171029), and by the environment conscious energy efficient building TAMOP-4.2.2.A–11/1/KONV-2012-0068 project sponsored by the EU and European Social Foundation, and in part by the National Research Foundation, South Africa (Grant No. 88301).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • A. S. Luyt
    • 1
  • B. Škipina
    • 2
  • L. Csóka
    • 3
  • D. Dudić
    • 4
    • 5
  1. 1.Center for Advanced MaterialsQatar UniversityDohaQatar
  2. 2.Faculty of TechnologyUniversity of Banja LukaBanja LukaBosnia and Herzegovina
  3. 3.Institute of Wood Based Products TechnologiesUniversity of West HungarySopronHungary
  4. 4.Vinča Institute of Nuclear SciencesUniversity of BelgradeBelgradeSerbia
  5. 5.Department of ChemistryUniversity of the Free StatePhuthaditjhabaSouth Africa

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