24 Dielectric Properties and AC Conductivity of Epoxy/Hybrid Nanocarbon. . .
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10
4
10
5
10
6
10
0
10
1
10
2
(a)
e
/
r
f, Hz
1wt%(GNP/CNT)/L285
1GNP/0CNT
0.75GNP/0.25CNT
0.5GNP/0.5CNT
10
4
10
5
10
6
10
-2
10
-1
10
0
10
1
10
2
10
3
(b)
e
//
r
1wt%(GNP/CNT)/L285
f, Hz
1GNP/0CNT
0.75GNP/0.25CNT
0.5GNP/0.5CNT
Fig. 24.7 Real (a) and imaginary (b) parts of dielectric permittivity and dielectric loss tangent
tanδ (c) of epoxy composites 1 wt.% nanocarbon/L285 versus frequency
10
4
10
5
10
6
10
1
10
2
e
/
r
(a)
2wt%(GNP/CNT)/L285
f, Hz
2GNP/0CNT
1.5GNP/0.5CNT
1GNP/1CNT
0.5GNP/1.5CNT
10
4
10
5
10
6
10
-2
10
-1
10
0
10
1
10
2
10
3
e
//
r
(b)
f, Hz
2GNP/0CNT
1.5GNP/0.5CNT
1GNP/1CNT
0.5GNP/1.5CNT
2wt%(GNP/CNT)/L285
Fig. 24.8 Real (a) and imaginary (b) parts of dielectric permittivity and dielectric loss tangent
tanδ of epoxy composites 2 wt.% nanocarbon/L285 versus frequency
0
2
4
6
8
0
10
20
30
40
50
e
/
r
(GNP/CNT)/L285
(a)
C, wt.%
GNP/0CNT
3GNP/1CNT
1GNP/1CNT
0.5GNP/xCNT
f=10kHz
0
2
4
6
8
0
1
2
3
4
5 f=10kHz
(GNP/CNT)/L285
(b)
tand
C, wt.%
GNP/0CNT
3GNP/1CNT
1GNP/1CNT
0.5GNP/xCNT
Fig. 24.9 Real part of permittivity (a) and dielectric tangent loss (b) of epoxy composites
nanocarbon/L285 at frequency 10 kHz versus hybrid nanocarbon filler content