Dielectric Properties of a Novel High Absorbing Onion-Like-Carbon Based Polymer Composite
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Diamond and Related Materials
ISSN: 0925-9635
, E-ISSN: 1879-0062
|
| Output data |
Year: 2010,
Volume: 19,
Number: 1,
Pages: 91-99
Pages count
: 9
DOI:
10.1016/j.diamond.2009.11.011
|
| Tags |
Dielectric permittivity, Electromagnetic coating, Onion like carbon, PMMA, Thermal stability |
| Authors |
Macutkevic J.
1
,
Kuzhir P.
2
,
Seliuta D.
1
,
Valusis G.
1
,
Banys J.
3
,
Paddubskaya A.
2
,
Bychanok D.
2
,
Slepyan G.
2
,
Maksimenko S.
2
,
Kuznetsov V.
4
,
Moseenkov S.
4
,
Shenderova O.
5
,
Mayer A.
6
,
Lambin Ph.
6
|
| Affiliations |
| 1 |
Vilniaus Universitetas
|
| 2 |
Belarusian State University
|
| 3 |
Vilniaus Universitetas
|
| 4 |
Boreskov Institute of Catalysis SB RAS
|
| 5 |
International Technology Center
|
| 6 |
University of Namur
|
|
Funding (7)
|
1
|
International Science and Technology Center
|
B-1708
|
|
2
|
Space and Naval Warfare Systems Command
|
66001-04-1-8933
|
|
3
|
The Ministry of Education and Science of the Russian Federation
|
2.1.1/410
|
|
4
|
The Ministry of Education and Science of the Russian Federation
|
2.1.2/2115
|
|
5
|
State Studies Foundation
|
V-07018
|
|
6
|
Federal Ministry of Education and Research
|
BLR 08/001
|
|
7
|
European Commission
|
247007 FP7-PEOPLE-2009-IRSES CACOMEL
|
A novel lightweight onion-like carbon (OLC) based Poly(methyl metacrylate) (PMMA) composite with high electromagnetic (EM) absorption capability determined earlier in microwave range is studied in low frequencies from 20 Hz to 1 MHz by dielectric spectroscopy. The investigation of dielectric properties of PMMA films with incorporated OLC in small concentration (0.5–2 wt.%) have been carried out by varying the temperature between 240 and 520 K. The temperature behavior of the complex permittivity at a given frequency is found to be strongly dependent on the OLC concentration. The experimental data are in quantitative agreement with the results of modified effective medium calculations of OLC-based polymer film's permittivity. Both the experimental observations and theoretical simulation demonstrate that small additions of onion-like carbon particles to a polymer matrix can noticeably modify the composite response to low-frequency EM radiation as well as improve its thermal stability (increased glass transition and melting temperatures, correspondingly).