Preparation and Properties of A High Dielectric Capacitance Thin Film
In this work,surface-modified barium titanate(BaTiO3)nanoparticles with hydroxyl groups or multi-walled carbon nanotubes(MWCNTs)were uniformly dispersed into the polyetherketoneketone(PEKK)matrix to enhance its dielectric properties.Moreover,in addition to adding a single type of filler,a combination of both BaTiO3 and MWCNTs was attempted to achieve composite materials with superior performance.Results showed that when 20 wt％of BaTiO3 or 5 wt％of MWCNTs were added to PEKK,the composite films achieved optimal values of relative permittivity(εr).More specifically,when 20 wt％of BaTiO3 was combined with 7 wt％of MWCNTs,the PEKK composite film exhibited an even better εr value than either filler alone.
Polyether Ketone KetoneDielectric PropertiesComposite Film
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