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Densley, J.; Audrieth, Louise

doi:10.1109/mei.2008.4581635

Cited by 8 publications

(1 citation statement)

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“…This is due to the belief that if the filler has a much greater permittivity than the polymer matrix and because most of the increase in the effective dielectric permittivity comes through an increase in the average field in the polymer matrix, then very little of the energy will be stored in the high permittivity filler phase [59]. In addition, the presence of a large contrast in permittivity between the two phases generates a highly inhomogeneous electric field that significantly reduces the effective breakdown strength of the composite.…”

Section: Inorganic Additives For Polymer Composite Dielectricsmentioning

confidence: 99%

Polymer Composite and Nanocomposite Dielectric Materials for Pulse Power Energy Storage

et al. 2009

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This review summarizes the current state of polymer composites used as dielectric materials for energy storage. The particular focus is on materials: polymers serving as the matrix, inorganic fillers used to increase the effective dielectric constant, and various recent investigations of functionalization of metal oxide fillers to improve compatibility with polymers. We review the recent literature focused on the dielectric characterization of composites, specifically the measurement of dielectric permittivity and breakdown field strength. Special attention is given to the analysis of the energy density of polymer composite materials and how the functionalization of the inorganic filler affects the energy density of polymer composite dielectric materials.

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Section: Inorganic Additives For Polymer Composite Dielectricsmentioning

confidence: 99%

Polymer Composite and Nanocomposite Dielectric Materials for Pulse Power Energy Storage

et al. 2009

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Flexible Nanodielectric Materials with High Permittivity for Power Energy Storage

et al. 2013

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Study of flexible nanodielectric materials (FNDMs) with high permittivity is one of the most active academic research areas in advanced functional materials. FNDMs with excellent dielectric properties are demonstrated to show great promise as energy-storage dielectric layers in high-performance capacitors. These materials, in common, consist of nanoscale particles dispersed into a flexible polymer matrix so that both the physical/chemical characteristics of the nanoparticles and the interaction between the nanoparticles and the polymers have crucial effects on the microstructures and final properties. This review first outlines the crucial issues in the nanodielectric field and then focuses on recent remarkable research developments in the fabrication of FNDMs with special constitutents, molecular structures, and microstructures. Possible reasons for several persistent issues are analyzed and the general strategies to realize FNDMs with excellent integral properties are summarized. The review further highlights some exciting examples of these FNDMs for power-energy-storage applications.

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Impact of BaTiO₃ as insulative ferroelectric barrier on the broadband dielectric properties of MWCNT/PVDF nanocomposites

Arjmand

Sundararaj

2014

Polymer Composites

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This study was devoted to investigating the effects of BaTiO 3 incorporation on the broadband dielectric properties of melt-mixed multi-walled carbon nanotube/poly(vinylidene fluoride) (MWCNT/PVDF) nanocomposites. BaTiO 3 , as insulative barrier, was incorporated into the composites with MWCNT loadings close to and above the percolation threshold, where conductive networks were unstable and newly formed. The results showed that BaTiO 3 did not create any change in the volume resistivity and percolation curve; nevertheless, it reduced the dissipation factor considerably. For instance, at 100 Hz the dissipation factor of the MWCNT/PVDF nanocomposite was 130, which dropped to 48 and 0.45 by adding 1.0 and 3.0 vol% BaTiO 3 , respectively. It was also observed that incorporating BaTiO 3 muted the descending trends of dielectric permittivity and dielectric loss with frequency, confirming the role of BaTiO 3 as insulative barrier. The positive impact of BaTiO 3 on the dielectric properties of the MWCNT/PVDF nanocomposites was attributed to deteriorated conductive network. POLYM. COMPOS.,

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From the Editor's desk

Cited by 8 publications

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Polymer Composite and Nanocomposite Dielectric Materials for Pulse Power Energy Storage

Polymer Composite and Nanocomposite Dielectric Materials for Pulse Power Energy Storage

Flexible Nanodielectric Materials with High Permittivity for Power Energy Storage

Impact of BaTiO₃ as insulative ferroelectric barrier on the broadband dielectric properties of MWCNT/PVDF nanocomposites

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From the Editor's desk

Cited by 8 publications

References 0 publications

Polymer Composite and Nanocomposite Dielectric Materials for Pulse Power Energy Storage

Polymer Composite and Nanocomposite Dielectric Materials for Pulse Power Energy Storage

Flexible Nanodielectric Materials with High Permittivity for Power Energy Storage

Impact of BaTiO3 as insulative ferroelectric barrier on the broadband dielectric properties of MWCNT/PVDF nanocomposites

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Impact of BaTiO₃ as insulative ferroelectric barrier on the broadband dielectric properties of MWCNT/PVDF nanocomposites