Interfacial effects on the electrical behavior of elastomer nanoparticulate composites
Interfacial effects on the electrical behavior of elastomer nanoparticulate composites
复制标题
弹性体纳米颗粒复合材料电行为的界面效应
DOI:
10.1117/12.2515364
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Lopez-Pamies, Oscar
中科院分区:
文献类型:
--
作者:
Meddeb, Amira;Ounaies, Zoubeida;Lopez-Pamies, Oscar
Polymer nanocomposites exhibit unique effective properties that do not follow conventional effective media approaches. The nanoparticle-polymer interphase has been shown to strongly influence the nanocomposites behavior due to its significant volume when the particles are nano-sized, affording an opportunity to tune the dielectric response of the resulting nanocomposite. In this study, we investigate the effects of TiO2nanoparticles on the electrical properties and the charges distribution and transport in polydimethylsiloxane (PDMS) nanocomposites. Impedance spectroscopy shows suppression of interfacial Maxwell-Wagner-Sillars (MWS) polarization accompanied by a reduction in the low frequency dielectric permittivity and loss at high temperatures in the presence of the TiO2nanoparticles. Thermally stimulated discharge current measurements confirm that the suppression of the interfacial polarization relaxations happens by redistributing or depleting the charges through the composite and hindering their mobility, potentially resulting in lower electrical conduction and higher breakdown strength. Although the model materials investigated here are TiO2nanoparticles and Sylgard 184 PDMS, our findings can be extended to other nanoparticulate-filled elastomer composites to design lightweight dielectrics, actuators and sensors with improved capabilities.
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DOI:
10.1016/j.compositesb.2018.08.064
发表时间:
2019
期刊:
Composites Part B: Engineering
影响因子:
--
作者:
A. Meddeb;T. Tighe;Z. Ounaies;O. Lopez-Pamies
通讯作者:
A. Meddeb;T. Tighe;Z. Ounaies;O. Lopez-Pamies
影响因子:
3
作者:
A. K. Kalkar;S. Kundagol;S. Chand;S. Chandra
通讯作者:
S. Chandra
影响因子:
4.5
作者:
R. Sekar;A. Tripathi;T. C. Goel;P. Pillai
通讯作者:
P. Pillai
影响因子:
4.6
作者:
Klonos, P.;Panagopoulou, A.;Pissis, P.
通讯作者:
Pissis, P.
影响因子:
4.6
作者:
Klonos, P.;Sulym, I. Ya.;Pissis, P.
通讯作者:
Pissis, P.