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Phenolic cloth laminates
Phenolic cloth laminates is manufactured by cotton cloth impregnated into phenolic resin, then pressed at high temperature |
Type
| Type |
Characteristic |
|
PFCC1 |
For mechanical application (coarse weave), good mechanical properties |
|
PFCC2 |
For mechanical and electrical application (coarse weave) |
|
PFCC3 |
For mechanical application(fine weave), and suitable for small accessories |
|
PFCC4 |
For mechanical and electrical application (fine weave), and suitable for small accessories |
Technical requirements
| No. |
Properties |
Unit |
Max. or Min. nominal thickness of sheets tested( mm) |
Value |
|
Type |
|
PFCC1 |
PFCC2 |
PFCC3 |
PFCC4 |
|
1 |
Flexural strength perpendicular to layers (Min.) |
Kgf/ cm2(MPa) |
Min 15 |
1020
(100) |
918
(90) |
1122
(110) |
1020
(100) |
|
2 |
Impact strength parallel to laminations (Charpy) |
Kgf.cm/
cm2
(KJ/ m2) |
Min 5 |
9 |
8 |
7 |
6 |
|
3 |
Voltage resistance parallel to layer direction, at 90±2℃ transformer oil for 1 min(Min.) |
kV |
Min 3 |
－ |
15 |
－ |
20 |
|
4 |
Insulation resistance after soaking into water. (Min.) |
MΩ |
Max 3 |
－ |
1×101 |
－ |
1×101 |
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