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

Figure 4

Optical microscope images of LDPE nanocomposites containing pristine GNPs ((a) 0.01 wt%, (b) 0.03 wt%, (c) 0.05 wt%, (d) 0.1 wt%) and GNP-T ((e) 0.01 wt%, (f) 0.03 wt%, (g) 0.05 wt%, (h) 0.1 wt%) fillers (inset: photographs of corresponding LDPE nanocomposites).

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