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To achieve a lower permittivity solid insulator for HV power apparatus, we have developed a polymer composite filled with nanoporous silica particles. This paper investigated the influence of nanopore size of the nanoporous-silica particles on particle porosity and permittivity of nanoporous-silica/epoxy composite (NanoPC). NanoPC was prepared by mixing epoxy resin and four kinds of nanoporous-silica...
Mesoporous-silica/epoxy composites consist of epoxy resin and the mesoporous-silica particles which have the micrometric particle-diameter and the nanometric pore-size. Mesoporous-silica/epoxy composite material can actualize nanoporous composite insulator. This paper presents the measurement results of specific gravity and dielectric permittivity for the mesoporous-silica/epoxy composites (MPC)....
This paper presents an attempt to derive the dielectric permittivity characteristics of polymer composite filled with the metal oxide particle which has mesoporous structure. Experiments were carried out on the epoxy composites filled with alumina microparticles which have the mesoporous structure (mesoporous-alumina/epoxy composites) with different particle content. Measurement of the specific gravity...
For specific properties of polymer nanocomposites, we focused on the dispersibility of nanoparticles and its influence on dielectric property. In order to control the dispersibility, we used ultrasonic wave (USW) and centrifugal force (CF). In this paper, we investigated the influence of nanoparticle content on permittivity characteristics of epoxy/alumina nanocomposites. As the result, we clarified...
In order to derive the specific properties of polymer nanocomposites, we investigated the influence of the dispersibility of nanoparticles on dielectric property. Experiments were carried out for epoxy/alumina nanocomposites with the particle dispersion techniques using ultrasonic wave (USW) and centrifugal force (CF). In this paper, by controlling the application duration of ultrasonic wave, we investigated...
For the application of nanocomposite materials to solid insulator in electric power apparatus, we investigated the influence of the dispersibility of nanoparticles on dielectric property. Experiments were carried out in epoxy/alumina nanocomposites with the particle dispersion techniques using ultrasonic wave and centrifugal force. As the result, we verified the specific characteristics of dielectric...
For applications of nanocomposite materials to solid insulator for electric power apparatus, we have to consider various characteristics from mechanical, thermal and electrical points of view. In particular, the agglomerate of nanoparticles would decline the excellent properties of nanocomposite. In this paper, we investigated the influence of dispersibility of nanoparticles on electrical properties...
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