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This paper reports on the effects of multiple compounding cycles on the structural, chemical, rheological and DC dielectric breakdown properties of bi-axially oriented silica-polypropylene nanocomposite films. While the effect of multiple compounding cycles on the silica particle agglomeration remains seemingly modest according to the quantitative structural analysis, the recompounding is found to...
Nonwoven nanofibers as a new material for possible improving properties of electrical insulation are considered in this paper. Polyamide nanofibers are used for modification of commonly used three-component mica-based high voltage electrical insulating material (epoxy resin, glass cloth and mica). Influence of different volume ratio and density of the nanofibers on the properties of resulting composites...
The effect of voltage ramp rate on the short-term dielectric breakdown strength of polymer nanocomposites is not well-documented. In this paper, the effect of DC field ramp rate on the large-area breakdown performance of melt-extruded bi-axially oriented polypropylene (BOPP) films incorporating 4.5 wt-% of nano-silica is studied. By utilizing a self-healing multi-breakdown measurement method with...
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