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

Autores: Rabenok E.¹, Novikov G.¹, Bogdanova L.¹, Bukichev Y.¹^,2, Dzhardimalieva G.¹^,2
Afiliações:
1. Institute of Problems of Chemical Physics, Russian Academy of Sciences
2. Moscow Aviation Institute (National Research University)
Edição: Volume 97, Nº 1 (2023)
Páginas: 121-127
Seção: ФИЗИЧЕСКАЯ ХИМИЯ НАНОКЛАСТЕРОВ, СУПРАМОЛЕКУЛЯРНЫХ СТРУКТУР И НАНОМАТЕРИАЛОВ
URL: https://journals.rcsi.science/0044-4537/article/view/136537
DOI: https://doi.org/10.31857/S0044453723010260
EDN: https://elibrary.ru/BCXHDO
ID: 136537

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Resumo

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

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epoxy nanocomposite TiO2 nanoparticles direct current conductivity broadband dielectric spectroscopy

Bibliografia

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