The Effect of Annealing Temperatures on the Dielectric Constant of PVDF/MgO Nanocomposites Thin Films

Abstract:

Poly(vinylidene flouride)/nano-magnesium oxide (PVDF/MgO) nanocomposites with MgO loading percentage of (7% wt. %) were annealed with various annealing temperatures ranging from 70°C to 170°C with rapid removal from the oven. From dielectric constant, the samples annealed at temperature of 70°C showed an improvement in the dielectric constant from 21 to 23 at frequency 10³ Hz for UN and AN70 respectively. However, as the temperatures were increased, the dielectric constant of PVDF/MgO (7%) was found to decrease. XRD showed the presence of β-phase for PVDF/MgO(7%) sample annealed at 70°C in comparison to unannealed sample, hence PVDF/MgO(7%) film is suitable to be used for low frequency capacitor application.

• Periodical: Advanced Materials Research (Volume 895)
• Pages: 221-225
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.895.221
• Online since: February 2014
• Authors: Adillah Nurashikin Arshad*, Rozana Mohd Dahan, Mohamad Hafiz Mohd Wahid, Muhamad Naiman Sarip, Mohamad Rusop Mahmood
• Keywords: Dielectric Constant, MgO, Poly(vinylidene Flouride), X-Ray Diffraction (XRD)

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