Dielectric and structural properties of poly(vinylidene fluoride) (PVDF) and poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) filled with magnesium oxide nanofillers

• Published in: Journal of Nanomaterials
• Main Author: Arshad A.N.; Wahid M.H.M.; Rusop M.; Majid W.H.A.; Subban R.H.Y.; Rozana M.D.
• Format: Article
• Language: English
• Published: Hindawi Limited 2019
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85066431195&doi=10.1155%2f2019%2f5961563&partnerID=40&md5=ab2b2d17dd4b98bb11578b1690656903

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. Copyright © 2019 A. N. Arshad et al. This is an open access article distributed under the Creative Commons Attribution License