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This paper shows the space charge behavior of LDPE-based nanomaterials containing graphene oxide as a filler. Space charge was evaluated through the pulse electroacoustic technique at 40 kV/mm and two temperatures, i.e. 20°C and 40°C. From experiments a massive bipolar charge injection and accumulation at room temperature is observed in the neat LDPE sample. In particular, a positive charge packet...
This paper deals with space charge characterization of LDPE nanocomposites having graphene oxide as nanofiller. Space charge measurements were performed at 40 kV/mm and at two temperatures, i.e. 20°C and 60°C. Experimental results showed that the base LDPE specimens is affected by a large bipolar charge injection at room temperature. In particular, a large amount of positive charge injected by the...
In this paper the properties of epoxy-based nanocomposites with multilayer graphene (MLG) as a filler are investigated. In particular dielectric properties, such as conductivity and polarization characteristics, are studied as a function of MLG filler content, ranging between 0.05 wt.% to 0.5 wt.%, through charging / discharging current measurements at the field of 25 kV/mm and two temperatures (20°C...
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