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

Author

Yan, W. ; Phung, B.T. ; Han, Z.J. ; Ostrikov, K.

Author_Institution

Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia

fYear

2012

fDate

24-28 July 2012

Firstpage

1

Lastpage

4

Abstract

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.

Keywords

Fourier transform spectra; X-ray photoelectron spectra; ageing; dielectric materials; electric breakdown; electric strength; infrared spectra; nanocomposites; nanoparticles; plasma materials processing; polymers; scanning electron microscopy; FTIR; Fourier transform infrared spectroscopy; SEM; SiO₂; X-ray photoelectron spectroscopy; XPS; covalent bonds; dielectric breakdown strength; insulation performance; intense electrical ageing process; nanoparticles; nonequilibrium atmospheric-pressure plasma; plasma functionalization; plasma-treated nanoparticles; polymer matrix; polymer nanodielectric syntheisis; scanning electron microscopy; silane-coated nanoparticles; synthesized epoxy-based nanocomposites; Active matrix organic light emitting diodes; Bridge circuits; Dielectrics; Insulation; Nanoparticles; Polymers; atmospheric-pressure plasma; dielectric breakdown; nanocomposite; partial discharge;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials (ICPADM), 2012 IEEE 10th International Conference on the

Conference_Location

Bangalore

ISSN

2160-9225

Print_ISBN

978-1-4673-2852-4

Type

conf

DOI

10.1109/ICPADM.2012.6318915

Filename

6318915