Journal Published Online: 07 December 2020
Volume 9, Issue 1

Dynamic Mechanical and Dielectric Properties of Fly Ash/(Polystyrene/Low-Density Polyethylene) Composites

CODEN: MPCACD

Abstract

By using the melt mixing method, polystyrene (PS), low-density polyethylene (LDPE), and a PS/LDPE blend have been prepared. Fly ash was used as filler embedded in the PS/LDPE blend to form composites. The dynamic mechanical analysis (DMA) showed that the storage modulus (E′) decreases as the temperature increases. E′ increases clearly with fly ash loading, and the maximum E′ value was found for the composite loaded with 30 % fly ash content. The mean-field theory developed by Kerner was used to predict the dynamic mechanical properties of the composites from their pure components. A good agreement was investigated between the deduced theoretical values via iteration method and the experimental results. The dielectric constant (ε′), dielectric loss, and dielectric loss tangent (tan δ) have been measured at different constant frequencies. The ε′ and tan δ commence to decrease by increasing the applied frequency.

Author Information

Nasr, Gamal
Physics Department, Faculty of Science, Cairo University, Giza, Egypt
Mohamed, Taqwa
Department of Physics, Faculty of Science, Zagazig University, Zagazig, Egypt
Khalil, Rania
Department of Physics, Faculty of Science, Zagazig University, Zagazig, Egypt
Pages: 11
Price: $25.00
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Stock #: MPC20200055
ISSN: 2379-1365
DOI: 10.1520/MPC20200055