Plasma polymer-coated on nanoparticles to improve dielectric and electrical insulation properties of nanocomposites

Yan, Wei, Phung, B. Toan, Han, Zhao Jun, & Ostrikov, Kostya (2014) Plasma polymer-coated on nanoparticles to improve dielectric and electrical insulation properties of nanocomposites. IEEE Transactions on Dielectrics and Electrical Insulation, 21(2), pp. 548-555.

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Polymeric nanocomposites have been shown to possess superior electrical insulation properties compared to traditional filled-resins. However, poor dispersion uniformity and insufficient filler-matrix interaction can adversely affect insulation properties of nanocomposites. In this study, the use of plasma polymerization is proposed to coat poly(ethylene oxide) polymer layers on silica nanoparticles. It is shown that better dispersion is achieved and C-O bonds are created between the surface functional groups of the nanoparticles and the host epoxy polymer. Electrical insulation tests demonstrate that the nanocomposites with plasma polymerized silica nanoparticles feature better resistance against electrical treeing, lower dielectric constant, and also mitigated space charge built-up. Therefore, plasma polymerization offers a promising fabrication technique to further improve the synthesis of nanocomposite dielectrics with superior electrical insulation properties.

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2 citations in Web of Science®

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ID Code: 73500
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: electrical insulation, electrical treeing, Nanocomposite dielectrics, partial discharge, plasma polymerization, space charge
DOI: 10.1109/TDEI.2013.004235
ISSN: 1070-9878
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 08 Jul 2014 04:33
Last Modified: 09 Jul 2014 04:04

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