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(i) Dielectric constant (ε′) and (iii) dielectric loss (ε′′) against frequency for various contents: (a) 2.5 wt %, (b) 5 wt %, (c) 7.5 wt %, and (d) 10 wt % of MWCNTs fillers at 20 °C. (ii) Dielectric constant (ε′) and (iv) dielectric loss (ε′′) with frequency for 10 wt % of MWCNTs fillers at various temperatures.
