Aramid paperboard
Aramid paperboard was specially made from meta-aramid short fiber and pulp , which are well known for their excellent mechanical properties ,high temperature resistance,low dielectric constant and electrical insulating property.
Property |
Unit |
Model |
Test |
|||
593 |
594 |
|||||
Thickness |
mm |
3.0 |
6.5 |
ASTM D374-99 |
||
Tolerance |
% |
±6% |
±8% |
|
||
Density |
g/cm³ |
0.8 |
1.05 |
|
||
Tensile strength |
kN/m |
MD |
310 |
420 |
ASTM D828-97 |
|
CD |
142 |
170 |
||||
Elongation |
% |
MD |
11.0 |
9.8 |
IEC 61629-2:1996 |
|
CD |
14.2 |
11.2 |
||||
Electrical performance in air |
||||||
Dielectric strength |
kV/mm |
16.8 |
21 |
ASTM 149-09 |
||
Dielectric constant |
50HZ |
2.39 |
3.0 |
ASTM D150-11 |
||
Loss |
50HZ |
8.32×10-3 |
8.0×10-3 |
|||
Volume resistivity |
Ω·m |
5.5×1014 |
6×1014 |
ASTM 257-07 |
||
Surface resistivity |
Ω |
6.7×1016 |
8.7×1016 |
|||
Electrical performance in oil |
||||||
Oil absorption rate |
% |
38 |
20 |
IEC 60641-2:2004 |
||
Dielectric strength |
kV/mm |
45.5 |
40.0 |
ASTM 149-09 |
||
Dielectric constant |
50HZ |
3.25 |
4.0 |
ASTM D150-11 |
||
Loss |
50HZ |
20℃ |
7.11×10-3 |
8.33×10-3 |
||
130℃ |
5.56×10-3 |
9.89×10-3 |
||||
Volume resistivity |
|
20℃ |
1.5×1014 |
2.5×1014 |
ASTM D257-07 |

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