Title :
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
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;
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
DOI :
10.1109/CEIDP.2008.4772870
