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Under high DC voltage, the space charge accumulation can largely alters the local field distribution in epoxy resin. And it has been revealed that nanoparticles have great influences on space charge distribution in epoxy resin. To reveal the mechanism of nanoparticles, the effects of nanoparticles on trap depth are investigated under different temperature. In this work, epoxy resin and its nano composite...
The electric properties of nanocomposites are determined by the interface between nano particles and epoxy resin, so the interface modification is very important. In this paper, silane coupling agent which has a carbon-carbon double bond and an oxymethylphenyl was used to modify the surface of α-Al2O3. In the modification, carbon-carbon double bonds were introduced to the surface of nano particles...
With the aim of reducing the insulation faults in GIS and achieving the purpose of GIS device miniaturization, it is very important to develop a new type insulation material. In this paper, the micro-nano Al2O3/Epoxy composites were proposed, and its dielectric breakdown strength was investigated. Nano-flllers and micro-fillers (α-Al2O3 with a purity of 99.9%, particle size range at 12∼21 µm for micro...
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