High-Voltage Insulation Organic-Inorganic Nanocomposites by Plasma Polymerization
1
School of Electrical Engineering and Telecommunications, The University of New South Wales, Kensington, NSW 2052, Australia
2
CSIRO Materials Science and Engineering, Lindfield, NSW 2070, Australia
3
Institute for Materials Science, Synthesis and Real Structure, Faculty of Engineering, Christian-Albrechts-University (CAU) Kiel, Kiel 24118, Germany
4
School of Physics, The University of Sydney, Sydney, NSW 2006, Australia
*
Author to whom correspondence should be addressed.
Materials 2014, 7(1), 563-575; https://doi.org/10.3390/ma7010563
Received: 13 December 2013
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Revised: 10 January 2014
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Accepted: 16 January 2014
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Published: 20 January 2014
(This article belongs to the Special Issue Nanocomposites of Polymers and Inorganic Particles 2013)
In organic-inorganic nanocomposites, interfacial regions are primarily influenced by the dispersion uniformity of nanoparticles and the strength of interfacial bonds between the nanoparticles and the polymer matrix. The insulating performance of organic-inorganic dielectric nanocomposites is highly influenced by the characteristics of interfacial regions. In this study, we prepare polyethylene oxide (PEO)-like functional layers on silica nanoparticles through plasma polymerization. Epoxy resin/silica nanocomposites are subsequently synthesized with these plasma-polymerized nanoparticles. It is found that plasma at a low power (i.e., 10 W) can significantly increase the concentration of C–O bonds on the surface of silica nanoparticles. This plasma polymerized thin layer can not only improve the dispersion uniformity by increasing the hydrophilicity of the nanoparticles, but also provide anchoring sites to enable the formation of covalent bonds between the organic and inorganic phases. Furthermore, electrical tests reveal improved electrical treeing resistance and decreased dielectric constant of the synthesized nanocomposites, while the dielectric loss of the nanocomposites remains unchanged as compared to the pure epoxy resin.
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Keywords:
organic-inorganic nanocomposites; plasma polymerization; electrical insulation; dielectric constant
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MDPI and ACS Style
Yan, W.; Han, Z.J.; Phung, B.T.; Faupel, F.; Ostrikov, K. High-Voltage Insulation Organic-Inorganic Nanocomposites by Plasma Polymerization. Materials 2014, 7, 563-575. https://doi.org/10.3390/ma7010563
AMA Style
Yan W, Han ZJ, Phung BT, Faupel F, Ostrikov K. High-Voltage Insulation Organic-Inorganic Nanocomposites by Plasma Polymerization. Materials. 2014; 7(1):563-575. https://doi.org/10.3390/ma7010563
Chicago/Turabian StyleYan, Wei, Zhao Jun Han, B. Toan Phung, Franz Faupel, and Kostya Ostrikov. 2014. "High-Voltage Insulation Organic-Inorganic Nanocomposites by Plasma Polymerization" Materials 7, no. 1: 563-575. https://doi.org/10.3390/ma7010563
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