Polyethylene/Graphene Nanoplatelet Nanocomposite-Based Insulating Materials for Effective Reduction of Space Charge Accumulation in High-Voltage Direct-Current Cables

Figure 8

(a) DC volume resistivity of LDPE/GNP-T nanocomposites as a function of GNP-T filler content under constant electric fields of 10 kV/mm and 20 kV/mm at room temperature. (b) DC volume resistivity of LDPE/GNP-T nanocomposites with 0 wt% and 0.1 wt% filler contents measured at various temperatures (25, 50, and 70°C) and electric field (10, 20 kV/mm) conditions.

(a)

(b)