Impedance Spectroscopy and Dielectric Properties of Carbon Nanotube-Reinforced Epoxy Polymer Composites

被引：4
|
作者：
Samir, Z. [1 ]
Boukheir, S. [1 ,2 ]
Belhimria, R. [1 ]
Achour, M. E. [1 ]
Eber, N. [3 ]
Costa, L. C. [4 ]
Oueriagli, A. [2 ]
机构：
[1] Ibn Tofail Univ, Fac Sci, Lab Mat Phys & Subatom, BP 242, Kenitra 14000, Morocco
[2] Univ Cadi Ayyad, Lab LN2E, Fac Sci, BP 2390, Marrakech, Morocco
[3] Hungarian Acad Sci, Inst Solid State Phys & Opt, Wigner Res Ctr Phys, POB 49, H-1525 Budapest, Hungary
[4] Univ Aveiro, Phys Dept, P-3810193 Aveiro, Portugal
来源：
JORDAN JOURNAL OF PHYSICS | 2020年 / 13卷 / 02期
关键词：
Carbon nanotubes; Composites; Impedance spectroscopy; Equivalent circuit model; Grain effect; Grain-boundary effect; ELECTRICAL-PROPERTIES; CONDUCTIVITY; BEHAVIOR;
D O I：
10.47011/13.2.3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The aim of this work is to investigate the electric properties of carbon nanotube-reinforced epoxy polymer composites, using impedance spectroscopy, in the frequency range from 1 to 10 and over the temperature range from 25 to 105 degrees C. The dielectric response was analyzed using the complex permittivity and the electrical modulus formalisms, depending on temperature and filler concentration in the polymer matrix. Furthermore, an equivalent circuit model is proposed to describe the impedance response of carbon nanotubes/epoxy composites. The impedance studies disclosed the appearance of grain and grain-boundary effects, as confirmed by the Nyquist plot.
引用
收藏
页码：113 / 121
页数：9
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