Dielectric dispersion and relaxations in (PMMA/PVDF)/ZnO nanocomposites
M.I.Mohammed;
Abstract
In latest years, the scientific community has shown important interest in nanocomposites
as a new generation of materials with elevated dielectric constant and low
dielectric loss factor for microelectronics. In this work, the effect of ZnO nanoparticles
on PMMA/PVDF blend. Solution-cast technique used to prepare these nanocomposites.
FTIR and SEM studies were performed. The effect of ZnO doping on
the complex dielectric permittivity, electric modulus properties and ac electrical
conductivity of these nanocomposites has been investigated at ambient temperature.
Dielectric constant ε′, dielectric loss ε″, and the loss tangent decreased with increasing
frequency and increased with increasing temperature. The dielectric constant
values were found almost high (∼24) at (100 Hz) and were referred to the presence
of interfacial polarization. The existence of loss peak in ε″, tanδ and, M" attributed
to α-relaxation existed in the nanocomposites. The temperature-dependent ac conductivity
values obeyed Arrhenius behavior. These nanocomposites can be selected
for implying capacitors and application of the memory device.
as a new generation of materials with elevated dielectric constant and low
dielectric loss factor for microelectronics. In this work, the effect of ZnO nanoparticles
on PMMA/PVDF blend. Solution-cast technique used to prepare these nanocomposites.
FTIR and SEM studies were performed. The effect of ZnO doping on
the complex dielectric permittivity, electric modulus properties and ac electrical
conductivity of these nanocomposites has been investigated at ambient temperature.
Dielectric constant ε′, dielectric loss ε″, and the loss tangent decreased with increasing
frequency and increased with increasing temperature. The dielectric constant
values were found almost high (∼24) at (100 Hz) and were referred to the presence
of interfacial polarization. The existence of loss peak in ε″, tanδ and, M" attributed
to α-relaxation existed in the nanocomposites. The temperature-dependent ac conductivity
values obeyed Arrhenius behavior. These nanocomposites can be selected
for implying capacitors and application of the memory device.
Other data
| Title | Dielectric dispersion and relaxations in (PMMA/PVDF)/ZnO nanocomposites | Authors | M.I.Mohammed | Keywords | PMMA/PVDF/ZnO nanocomposites;Dielectric behavior;AC electrical conductivity;Dielectric relaxation;FTIR;SEM | Issue Date | 2021 | Publisher | springer | Journal | Polymer Bulletin |
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