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Effects of Interfacial Charge on the DC Dielectric Properties of Nanocomposites
Joint Authors
Zhao, Hong
Yang, Jiaming
Liu, Congji
Zheng, Changji
Wang, Xuan
Gao, Mingze
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-28
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The interfacial charge phenomenon of MgO/low-density polyethylene (LDPE) and SiO2/LDPE nanocomposites was measured by synchrotron radiation small-angle X-ray scattering.
Based on the Porod theory, the Porod curve of SiO2/LDPE nanocomposite shows negative divergence but the LDPE and MgO/LDPE do not, which reveals that interfacial charge may exist in the SiO2/LDPE nanocomposite.
The DC dielectric properties of the nanocomposites are closely related to the interfacial charge.
Experimental results show that the SiO2/LDPE nanocomposite has lower DC conductivity, less space charge, and higher DC breakdown strength than the MgO/LDPE nanocomposite.
It is thought that the interfacial charge has a positive effect on the DC dielectric performance of nanocomposites, and the mechanism could be attributed to the scattering effects of the interfacial charge on the carrier migration.
There is no obvious interfacial charge in the MgO/LDPE nanocomposite, but it still has excellent DC dielectric properties compared with LDPE, which indicates that the interfacial charge is not the only factor affecting the dielectric properties; the dipole interface layer and the reduction of free volume can also inhibit the migration of carriers and decrease electrons free path, improving the dielectric performance.
American Psychological Association (APA)
Yang, Jiaming& Liu, Congji& Zheng, Changji& Zhao, Hong& Wang, Xuan& Gao, Mingze. 2016. Effects of Interfacial Charge on the DC Dielectric Properties of Nanocomposites. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1109087
Modern Language Association (MLA)
Yang, Jiaming…[et al.]. Effects of Interfacial Charge on the DC Dielectric Properties of Nanocomposites. Journal of Nanomaterials No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1109087
American Medical Association (AMA)
Yang, Jiaming& Liu, Congji& Zheng, Changji& Zhao, Hong& Wang, Xuan& Gao, Mingze. Effects of Interfacial Charge on the DC Dielectric Properties of Nanocomposites. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1109087
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109087