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The operating temperature of power cable system has a great influence on the electrical performance of room temperature vulcanizing (RTV) silicone rubber. This paper investigated the effects of low temperature and nanoparticles on electrical tree in RTV silicone rubber. Samples were prepared by mixing SiO2 nanoparticles into RTV silicone rubber, with the content of 0, 0.5, 1, 1.5 and 2 wt% respectively...
Study of the main properties of polyvinylidene fluoride (PVDF) films produced by two processing technologies such as hot pressing from a melt or solution casting was the aim of this paper. To characterize properties of samples, different experimental methods such as FRA (dielectric spectroscopy), IR-spectroscopy and DSC/TGA analysis were used in this work. It was found that the beginning melting temperature,...
Some of the most exciting novel approaches for renewable solar energy conversion are the organic photovoltaic devices that take advantage of the unique properties of polymers such as poly(3-hexylthiphene) (P3HT). Although this type of devices present significant advantages (stability, price) their long-term performance has to be continuously improved. This study describes the dielectric behaviour...
Polylactic acid (PLA), a biodegradable plastic, has excellent electrical insulation properties. Being a hard resin, however, PLA is difficult to apply to coated cable. In this study, we blended a plasticizer with PLA to soften it, and examined the effects of the plasticizer on the mechanical and electrical characteristics of PLA. The glass transition temperature (Tg) and the melting point (Tm) had...
The chemical structure of the repeat unit of polychlorotrifluoroethylene (PCTFE) F — C — F — F — C — Cl possesses a molecular asymmetry which gives rise to dipolar relaxation phenomena.
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