Giant Dielectric Permittivities in Functionalized Carbon‐Nanotube/ Electroactive‐Polymer Nanocomposites

Dang, Zhi‐Min; Wang, Lan; Yin, Yi; Zhang, Qing; Lei, Q.

doi:10.1002/adma.200600703

Cited by 777 publications

(642 citation statements)

References 33 publications

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“…These conductive particles are associated with induced internal fields which neutralizes the external applied field, thus making their corresponding composites good dielectric material compared with their unfilled counterparts (Akram et al 2005;Sutton, 1956). Nevertheless, the lower in ε´at high frequency is a common phenomenon associated with inability of the electrical field to cope with the oscillating filed (Dang et al 2007).…”

Section: Dielectric Constant Propertymentioning

confidence: 99%

Effect of graphene on polar and nonpolar rubber matrices

Mensah

Kang

Wang

et al. 2018

Mech Adv Mater Mod Process

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Section: Dielectric Constant Propertymentioning

confidence: 99%

Effect of graphene on polar and nonpolar rubber matrices

Mensah

Kang

Wang

et al. 2018

Mech Adv Mater Mod Process

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“…However, the potential of CNTs to serve as conductive filler is partially eclipsed due to the strong inter-filler force that leads to aggregation of CNTs and the poor interface between CNT and polymer. To better disperse the CNTs and subsequently obtain superior electrical properties of CNT/polymer composites, researchers like Dang et al (2007b) and Liu et al (2011) Liu et al (2011) where, despite the chemical modification of CNTs, the dielectric permittivity of the composites was below 100 even at the CNT concentration of 20 vol. %.…”

Section: Introductionmentioning

confidence: 99%

Two percolation thresholds and remarkably high dielectric permittivity in pristine carbon nanotube/elastomer composites

Shehzad

Hakro

Zeng³

et al. 2015

Appl Nanosci

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Pristine carbon nanotube (CNT)/elastomer composites were fabricated using pristine multi-walled carbon nanotubes and a thermoplastic elastomer. These composites exhibited a unique phenomenon of two electrical percolation thresholds that invoked very high dielectric values for the resulting composites. The first percolation was associated with a relatively low dielectric constant value of about 100, while in the vicinity of the second percolation threshold a very high dielectric constant value of 8,000 was achieved. The presence of two percolation thresholds was attributed to the unique distribution patterns of CNTs that ensued in a CNT/elastomer composite system with unique electrical properties.

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“…They are: System I -(PANI-PVDF), 26 System II -(CB-BT-VMQ), 30 System III -(Ag-PI), 31 System IV -(CF-PVDF), 32 System V -(TFP-MWNT-PVDF), 33 and System VI -(MWNT-PVDF). 34 The first three systems use a spherical filler, while the last three use one-dimensional filler particles.…”

Section: Experimental Methodsmentioning

confidence: 99%

Characterization of percolation behavior in conductor–dielectric 0-3 composites

et al. 2014

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The equation " eff / ð c À Þ Às which shows the relationship between effective dielectric constant (" eff ) and the filler concentration ('), is widely used to determine the percolation behavior and obtain parameters, such as percolation threshold ' c and the power constant s in conductor-dielectric composites (CDCs). Six different systems of CDCs were used to check the expression by fitting experimental results. It is found that the equation can fit the experimental results at any frequency. However, it is found that the fitting constants do not reflect the real percolation behavior of the composites. It is found that the dielectric constant is strongly dependent on the frequency, which is mainly due to the fact that the frequency dependence of the dielectric constant for the composites close to ' c is almost independent of the matrix.

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Giant Dielectric Permittivities in Functionalized Carbon‐Nanotube/ Electroactive‐Polymer Nanocomposites

Cited by 777 publications

References 33 publications

Effect of graphene on polar and nonpolar rubber matrices

Effect of graphene on polar and nonpolar rubber matrices

Two percolation thresholds and remarkably high dielectric permittivity in pristine carbon nanotube/elastomer composites

Characterization of percolation behavior in conductor–dielectric 0-3 composites

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