Dielectric properties of MWCNT based polymer composites close and below percolation threshold

J. Macutkevic; D. Seliuta; G. Valusis; J. Banys; P. Kuzhir; S. Maksimenko; V. Kuznetsov; S. Moseenkov; A. Usolseva; I. Mazov; A. Ischenko; P. Lambin

doi:10.1002/pssc.200982531

Dielectric properties of MWCNT based polymer composites close and below percolation threshold

J. Macutkevic, D. Seliuta, G. Valusis, J. Banys, P. Kuzhir, S. Maksimenko, V. Kuznetsov, S. Moseenkov, A. Usolseva, I. Mazov, A. Ischenko, P. Lambin

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Abstract

Results of broadband (20 Hz-1 MHz) dielectric spectroscopy of multi-wall carbon nanotubes/polymethylmethacrylate composites with low loading of the carbon fillers (up to 0.5 wt%) are reported. The temperature behaviour of complex dielectric permittivity of MWCNT/PMMA composites with 0.25 wt % is similar to the pure PMMA polymer. However, the dielectric permittivity and electric conductivity of composites with 0.5 wt% are very high and both parameters are almost temperature independent. The high complex dielectric permittivity of these composites indicates the onset of percolation threshold. The relaxation time of β relaxation is shorter in MWCNT/PMMA composites than in pure PMMA.

Original language	English
Pages (from-to)	2814-2816
Number of pages	3
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	6
Issue number	12
DOIs	https://doi.org/10.1002/pssc.200982531
Publication status	Published - 1 Jan 2009

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Macutkevic, J., Seliuta, D., Valusis, G., Banys, J., Kuzhir, P., Maksimenko, S., Kuznetsov, V., Moseenkov, S., Usolseva, A., Mazov, I., Ischenko, A., & Lambin, P. (2009). Dielectric properties of MWCNT based polymer composites close and below percolation threshold. Physica Status Solidi (C) Current Topics in Solid State Physics, 6(12), 2814-2816. https://doi.org/10.1002/pssc.200982531

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title = "Dielectric properties of MWCNT based polymer composites close and below percolation threshold",

abstract = "Results of broadband (20 Hz-1 MHz) dielectric spectroscopy of multi-wall carbon nanotubes/polymethylmethacrylate composites with low loading of the carbon fillers (up to 0.5 wt%) are reported. The temperature behaviour of complex dielectric permittivity of MWCNT/PMMA composites with 0.25 wt % is similar to the pure PMMA polymer. However, the dielectric permittivity and electric conductivity of composites with 0.5 wt% are very high and both parameters are almost temperature independent. The high complex dielectric permittivity of these composites indicates the onset of percolation threshold. The relaxation time of β relaxation is shorter in MWCNT/PMMA composites than in pure PMMA.",

author = "J. Macutkevic and D. Seliuta and G. Valusis and J. Banys and P. Kuzhir and S. Maksimenko and V. Kuznetsov and S. Moseenkov and A. Usolseva and I. Mazov and A. Ischenko and P. Lambin",

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Macutkevic, J, Seliuta, D, Valusis, G, Banys, J, Kuzhir, P, Maksimenko, S, Kuznetsov, V, Moseenkov, S, Usolseva, A, Mazov, I, Ischenko, A & Lambin, P 2009, 'Dielectric properties of MWCNT based polymer composites close and below percolation threshold', Physica Status Solidi (C) Current Topics in Solid State Physics, vol. 6, no. 12, pp. 2814-2816. https://doi.org/10.1002/pssc.200982531

TY - JOUR

T1 - Dielectric properties of MWCNT based polymer composites close and below percolation threshold

AU - Macutkevic, J.

AU - Seliuta, D.

AU - Valusis, G.

AU - Banys, J.

AU - Kuzhir, P.

AU - Maksimenko, S.

AU - Kuznetsov, V.

AU - Moseenkov, S.

AU - Usolseva, A.

AU - Mazov, I.

AU - Ischenko, A.

AU - Lambin, P.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - Results of broadband (20 Hz-1 MHz) dielectric spectroscopy of multi-wall carbon nanotubes/polymethylmethacrylate composites with low loading of the carbon fillers (up to 0.5 wt%) are reported. The temperature behaviour of complex dielectric permittivity of MWCNT/PMMA composites with 0.25 wt % is similar to the pure PMMA polymer. However, the dielectric permittivity and electric conductivity of composites with 0.5 wt% are very high and both parameters are almost temperature independent. The high complex dielectric permittivity of these composites indicates the onset of percolation threshold. The relaxation time of β relaxation is shorter in MWCNT/PMMA composites than in pure PMMA.

AB - Results of broadband (20 Hz-1 MHz) dielectric spectroscopy of multi-wall carbon nanotubes/polymethylmethacrylate composites with low loading of the carbon fillers (up to 0.5 wt%) are reported. The temperature behaviour of complex dielectric permittivity of MWCNT/PMMA composites with 0.25 wt % is similar to the pure PMMA polymer. However, the dielectric permittivity and electric conductivity of composites with 0.5 wt% are very high and both parameters are almost temperature independent. The high complex dielectric permittivity of these composites indicates the onset of percolation threshold. The relaxation time of β relaxation is shorter in MWCNT/PMMA composites than in pure PMMA.

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U2 - 10.1002/pssc.200982531

DO - 10.1002/pssc.200982531

M3 - Article

AN - SCOPUS:77955462856

SN - 1862-6351

VL - 6

SP - 2814

EP - 2816

JO - Physica Status Solidi (C) Current Topics in Solid State Physics

JF - Physica Status Solidi (C) Current Topics in Solid State Physics

IS - 12

ER -

Dielectric properties of MWCNT based polymer composites close and below percolation threshold

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