Multi-walled carbon nano-tubes (CNT)/epoxy nano-composites were fabricated and coated onto epoxy insulating substrates in order to uniformize the surface conductivity. The effects of polymer functionalization of CNT were investigated on the dispersion of CNT in an epoxy matrix and the electrical surface conductivity. It was elucidated that grafting polymer molecules onto the CNT surface improve the dispersion of CNT in an epoxy matrix compared to those containing CNT without functionalization. The surface conductivity of nano-composites decreases thanks to uniform dispersion of CNT.
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