Plasma functionalization of SiO2 nanoparticles for the synthesis of polymer nano-dielectrics

Yan, W., Phung, B. T., Han, Z. J., & Ostrikov, K. (2012) Plasma functionalization of SiO2 nanoparticles for the synthesis of polymer nano-dielectrics. In 2012 IEEE 10th International Conference on the Properties and Applications of Dielectric Materials (ICPADM), IEEE, Bangalore, pp. 1-4.

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In this study, we improve the insulation performance of polymeric nano-dielectrics by using plasma pre-treatment on the filled nanoparticles. Non-equilibrium atmospheric-pressure plasma is employed to modify a commercial type of silane-coated SiO2 nanoparticles. The treated nanoparticles and the synthesized epoxy-based nanocomposites are characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The plasma-treated SiO2 nanoparticles can disperse uniformly and form strong covalent bonds with the molecules of the polymer matrix. Moreover, the electrical insulation properties of the synthesized nanocomposites are investigated. Results show that the nanocomposites with plasma-treated SiO2 nanoparticles obtain improved dielectric breakdown strength and extended endurance under intense electrical ageing process.

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ID Code: 73568
Item Type: Conference Paper
Refereed: Yes
Keywords: atmospheric-pressure plasma, dielectric breakdown, nanocomposite, partial discharge
DOI: 10.1109/ICPADM.2012.6318915
ISBN: 9781467328500
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 10 Jul 2014 02:34
Last Modified: 11 Jul 2014 04:33

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