Electrical Discharge Resistant Characteristics of Epoxy Nanocomposites

Author

Preetha, P. ; Alapati, Sridhar ; Singha, S. ; Venkatesulu, B. ; Thomas, M. Joy

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Sci., Bangalore

fYear

2008

fDate

26-29 Oct. 2008

Firstpage

718

Lastpage

721

Abstract

This paper reports the electrical discharge resistant characteristics of epoxy nanocomposite systems with SiO₂ and Al₂O₃ nano-fillers. A comparative study is performed between unfilled epoxy systems, nanoparticle filled epoxy systems and a bimodal system containing both micrometer and nanometer sized fillers of the same material. The samples are exposed to surface discharges and the levels of surface degradation are analyzed through SEM and surface roughness measurements. Significant variations were observed in the electrical discharge resistant characteristics between the different composite systems and it is seen that the introduction of nano-fillers to epoxy is advantageous in improving the electrical discharge resistance of epoxy.

Keywords

epoxy insulation; filled polymers; nanocomposites; nanoparticles; scanning electron microscopy; surface discharges; surface roughness; SEM; bimodal system; electrical discharge resistant characteristics; epoxy nanocomposites; nano-fillers; scanning electron microscopy; surface discharges; surface roughness measurements; Degradation; Dielectrics and electrical insulation; Electric resistance; Nanocomposites; Rough surfaces; Scanning electron microscopy; Surface discharges; Surface resistance; Surface roughness; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2008. CEIDP 2008. Annual Report Conference on

Conference_Location

Quebec, QC

Print_ISBN

978-1-4244-2548-8

Electronic_ISBN

978-1-4244-2549-5

Type

conf

DOI

10.1109/CEIDP.2008.4772870

Filename

4772870