Аутори:
1. Драгана Церовић, University of Belgrade, Faculty of Physics, Serbia
2. Иван Петронијевић, Универзитет у Београду, Физички факултет, Студентски трг 12, Београд, Serbia
3. Славица Малетић, Универзитет у Београду, Физички факултет, Студентски трг 12, Београд, Serbia
4. Blanka Škipina, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
5. Биљана Пећанин, Универзитет у Бањој Луци, Технолошки факултет, Republic of Srpska, Bosnia and Herzegovina
6. Драгана Грујић, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina
7. Branka Ružičić, University of Banja Luka, Faculty of Technology, Republic of Srpska, Bosnia and Herzegovina

Апстракт:
The development of environmentally friendly materials from renewable resources that can be easily destroyed or recycled is increasingly becoming a task of today in order to preserve the environment and monitor sustainable development. This paper presents the preparation of composites by introducing different concentrations of lignocellulose-based biomass into an isotactic polypropylene matrix. Wheat, barley, rye and oat bran as so as corn granules obtained in Serbia were used as fillers. The influence of different filler concentrations of 20%, 30% and 40% on the dielectric loss factor ('') and electrical conductivity (σac) was analyzed. Measurements of dielectric parameters were performed at 13 test frequencies in the range from 30 Hz to 60 kHz at a temperature of 23°C. An increase in the values of the dielectric loss factor and electrical conductivity with an increase in the concentration of biomass filler was observed for all samples. With an increase in the frequency of the external field, a decrease in the value of the dielectric loss factor occurred, while the electrical conductivity increased for all samples.

Кључне речи:
composite, biomass, dielectric loss factor, electrical conductivity

Тематска област:
СИМПОЗИЈУМ А - Наука материје, кондензоване материје и физикa чврстог стања

Датум пријаве сажетка:
29.06.2025.

Конференцијa:
Contemporary Materials 2025 - Savremeni Materijali

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