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Among the new insulating materials to be used in high-voltage insulation, hybrid organic/inorganic nanocomposites have received a great attention. Indeed, these materials are gaining in popularity as an effective dielectric insulator with high temperature resistance. This research route is a part of the ANASTASIA consortium, which is made up of a balanced team of academic and industrial partners,...
This work focuses on dielectric relaxation phenomena of hybrid organic-inorganic epoxy systems obtained through the application of a Layer-by-Layer (LbL) silica assembly on a UV-cured epoxy system, based on the copolymerization of a cycloaliphatic diepoxy monomer (namely 3,4-epoxycyclohexylmethyl-3',4'-epoxy-cyclohexane carboxylate-CE) with a flexibilizing comonomer (1,6-hexanediol diglycidyl ether-HDGE)...
This paper focuses on the electrical characterization of polycarbonate substrates coated with silica/silica bi-layers assembled through the layer-by-layer (LbL) technique. More specifically, such dielectric features as the space charge accumulation are discussed and correlated with the number of silica/silica bilayers. Indeed, the nature of the trapped space charges seems to be affected by the LbL...
Nanocomposite materials show promising results for applications as electrical insulation. Among several materials presently under investigation, previous works indicate that polypropylene and ethylene-vinilacetate filled by nanosilicates present lower content of space charge and higher electric strength. However, efforts are needed to explain nanocomposite behaviour and characterize their electrical,...
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