Dielectric and Structural Properties of Poly(vinylidene fluoride)‎ (PVDF)‎ and Poly(vinylidene fluoride-trifluoroethylene)‎ (PVDF-TrFE)‎ Filled with Magnesium Oxide Nanofillers

الملخص EN

This study examines the dielectric properties of filled PVDF film and filled PVDF-TrFE film incorporated with 1, 3, 5, and 7 weight percentages of magnesium oxide (MgO) nanofillers.

The metal-insulator-metal (MIM) configuration demonstrates PVDF/MgO with 7 weight percent of MgO which produced high dielectric constant (1 kHz) with low dielectric loss.

The ATR-FTIR spectra of PVDF/MgO (7%) indicate wide bonding peaks at 840 cm-1 and 880 cm-1, assigned to -CH2 and -CF2 groups, respectively.

This implies the presence of high content of β-crystals in the PVDF/MgO (7%) film.

A shift in the peak was observed in the same film, from 1170 cm-1 to 1180 cm-1 suggesting possible transformation from γ-crystals to β-crystals.

This film showed no apparent defect on its film surface.

Thus, it established that PVDF incorporated with 7% MgO can be used to produce nanocomposite thin film for low-frequency electronic devices.