Abstract
A new class of insulating materials is the class of polymer nanocomposites. In the past twenty-five years, a lot of attention was paid to the various electrical, thermal and mechanical properties of polymer nanocomposite materials. In the present work, epoxy resin samples without and with nanoparticles (0 wt%, 1 wt%, 3 wt%, 5 wt%, and 10 wt%) are investigated regarding the surface discharges and the flashover voltages. Four different water droplet arrangements were used, with eight different water conductivities in order to see the effect of the nanoparticle.
Highlights
A nanocomposite is defined as a material having constituents, one of which has dimensions in the nanorange
Surface discharges and the flashover phenomenon are due, among other factors, to the presence of water droplets on the polymer nanocomposite surface. It is the aim of this paper to investigate the influence of various water droplet arrangements, with various water conductivities, under uniform electrical fields on epoxy resin nanocomposite surfaces
It must be noted that in all Figures the blue line indicates the sample with 0wt% nanoparticles, the red line indicates the sample with 1wt% nanoparticles, the yellowline indicates the sample with 3wt% nanoparticles, the purple line indicates the sample with 5wt% nanoparticles and the greenline indicates the sample with 10wt% nanoparticles
Summary
A nanocomposite is defined as a material having constituents, one of which has dimensions in the nanorange. Intensive research in the field of nanocomposites started especially after the publication of [1]. Much research has been carried out on various aspects of polymer nanocomposites, relatively little is known w.r.t. their surface discharge and flashover behavior [6]. Surface discharges and the flashover phenomenon are due, among other factors, to the presence of water droplets on the polymer nanocomposite surface. It is the aim of this paper to investigate the influence of various water droplet arrangements, with various water conductivities, under uniform electrical fields on epoxy resin nanocomposite surfaces. The epoxy resin nanocomposites contained nanoparticles of percentages 1wt%, 3wt%, 5wt% and 10wt%. The present work continues previous work conducted with the same samples [7]
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