The effect of micro‐fibrillated cellulose upon the dielectric relaxations and DC conductivity in thermoplastic starch bio‐composites

2020 ◽  
Vol 137 (48) ◽  
pp. 49573
Author(s):  
Stavros X. Drakopoulos ◽  
József Karger‐Kocsis ◽  
Georgios C. Psarras
Keyword(s):  
Thermoplastic Starch ◽  
Dc Conductivity ◽  
Dielectric Relaxations

scholarly journals Influence of Carbon Black and Silica Fillers with Different Concentrations on Dielectric Relaxation in Nitrile Butadiene Rubber Investigated by Impedance Spectroscopy

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 155
Author(s):  
Gyung-Hyun Kim ◽  
Young-Il Moon ◽  
Jae-Kap Jung ◽  
Myung-Chan Choi ◽  
Jong-Woo Bae
Keyword(s):  
Activation Energy ◽  
Impedance Spectroscopy ◽  
Carbon Black ◽  
Dc Conductivity ◽  
Butadiene Rubber ◽  
Central Frequency ◽  
Dielectric Relaxations ◽  
Nitrile Butadiene Rubber ◽  
Energy Behavior ◽  
Silica Fillers

In neat nitrile butadiene rubber (NBR), three relaxation processes were identified by impedance spectroscopy: α and α′ processes and the conduction contribution. We investigated the effects of different carbon black (CB) and silica fillers with varying filler content on the dielectric relaxations in NBR by employing a modified dispersion analysis program that deconvolutes the corresponding processes. The central frequency for the α′ process with increasing high abrasion furnace (HAF) CB filler was gradually upshifted at room temperature, while the addition of silica led to a gradual downshift of the center frequency. The activation energy behavior for the α′ process was different from that for the central frequency. The use of HAF CB led to a rapid increase in DC conductivity, resulting from percolation. The activation energy for the DC conductivity of NBRs with HAF CB decreased with increasing filler, which is consistent with that reported in different groups.

scholarly journals Characterization of dielectric relaxations in CaCu3Ti4O12 via diverse complex planes: Effect of dipole polarization and dc conductivity

2021 ◽  
Vol 129 (2) ◽  
pp. 97-104
Author(s):  
Xue-Tong ZHAO ◽  
Wen-Yue ZHENG ◽  
Jie-Xin ZHANG ◽  
Jie LIANG ◽  
Han CHEN ◽  
...  
Keyword(s):  
Dc Conductivity ◽  
Dielectric Relaxations ◽  
Complex Planes ◽  
Dipole Polarization

Composition dependence of the DC conductivity in (CuPc) sakap 6 mixtures: Yoshida model application

1991 ◽  
Vol 123 (2) ◽  
pp. K145-K148 ◽  
Author(s):  
R. Piasecki ◽  
Z. Ziembik ◽  
W. Wacławek ◽  
M. Zabkowska-Wacławek
Keyword(s):  
Composition Dependence ◽  
Dc Conductivity ◽  
Model Application

Temperature Stability of DC Conductivity and Breakdown of Crosslinked LLDPE

2020 ◽  
Vol 27 (6) ◽  
pp. 2064-2070
Author(s):  
Yinge Li ◽  
Lisheng Zhong ◽  
Liang Cao ◽  
Wenpeng Li ◽  
Jinghui Gao ◽  
...  
Keyword(s):  
Temperature Stability ◽  
Dc Conductivity
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