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The main objective of this paper is to give an electrical characterization of epoxy based nanocomposite materials. These innovative materials are composed of an cycloaliphatic epoxy with a flexibiliser mixed with 0, 1, and 20%wt Nanopox®. These materials are aimed to be used for electrical engineering applications and they should have a significant increase in electrical performances compared to the...
This work deals with the study of micro and nanosilica filled epoxy resin samples carried out in the framework of CIGRE WG D1.24 cooperative test program. This program focused on chemical, electrical and electrostatic properties of epoxy based nanodielectrics for electrical engineering applications. Epoxy based samples filled with micro and/or nanoparticles of silica were characterized by transmission...
Epoxy based compounds containing micrometric and nanometric silica were prepared. These were utilized in a comparative study to establish their dielectric behaviour. In this study, the weight %-content of the silica filler was varied as a parameter. Some filler distributions were characterized using TEM. In general, the micrographs illustrate a satisfactory dispersion, showing a nanostructured morphology...
Breakdown happening during space charge detrapping without applied field is called space charge breakdown. Space charge breakdown in inorganic nano powder/PMMA (polymethyl methacrylate) composites is studied in this investigation. Nano additive shows significant impact on the space charge behavior of nano powder/PMMA composites. Appropriate proportion of inorganic oxide nano powder can obviously restrict...
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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