Temperature Dependence of Direct Current Conductivity in TiO2/Epoxy Polymer Dielectric Nanocomposites

E. V. Rabenok; Рабенок Е. В.; G. F. Novikov; Новиков Г. Ф.; L. M. Bogdanova; Богданова Л. М.; Yu. S. Bukichev; Букичев Ю. С.; G. I. Dzhardimalieva; Джардималиева Г. И.

doi:10.31857/S0044453723010260

Temperature Dependence of Direct Current Conductivity in TiO2/Epoxy Polymer Dielectric Nanocomposites

Authors: Rabenok E.V.¹, Novikov G.F.¹, Bogdanova L.M.¹, Bukichev Y.S.¹^,2, Dzhardimalieva G.I.¹^,2
Affiliations:
1. Institute of Problems of Chemical Physics, Russian Academy of Sciences
2. Moscow Aviation Institute (National Research University)
Issue: Vol 97, No 1 (2023)
Pages: 121-127
Section: ФИЗИЧЕСКАЯ ХИМИЯ НАНОКЛАСТЕРОВ, СУПРАМОЛЕКУЛЯРНЫХ СТРУКТУР И НАНОМАТЕРИАЛОВ
Submitted: 27.02.2025
Published: 01.01.2023
URL: https://ruspoj.com/0044-4537/article/view/668887
DOI: https://doi.org/10.31857/S0044453723010260
EDN: https://elibrary.ru/BCXHDO
ID: 668887

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Abstract

A study is performed of the effect TiO2 nanoparticles have on the temperature dependence of the direct current conductivity of epoxy polymers. The value of direct current conductivity is determined by analyzing the frequency dependence of the complex permittivity in the 102–105 Hz range of frequencies. Two characteristic regions are found on the temperature dependence of direct current conductivity: the Vogel–Fulcher–Tammann dependence above the glass transition temperature (Tg), and the Arrhenius dependence below Tg, due apparently to a change in the mechanism of conduction after the freezing of ionic mobility at temperatures

Keywords

epoxy nanocomposite TiO2 nanoparticles direct current conductivity broadband dielectric spectroscopy

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