9309 Epoxy Phenolic Laminated Paperboard
Product Description
9309 Epoxy Phenolic Laminated Paperboard is a premium composite insulation material composed of high-quality cellulose paper impregnated with a specialized blend of epoxy and phenolic resins. Engineered for high-stress electrical environments, this board offers a low dielectric loss factor, exceptional electrical strength, and excellent oil resistance.
With a Grade E heat resistance rating, it ensures reliable long-term performance and structural integrity, making it an optimal choice for oil-immersed electrical applications.
1, Structure (form): cellulose paper, epoxy resin, phenolic resin;
2, Performance (summary): the utility model has the advantages of low loss factor, high electrical strength,oil resistance
and heat resistance grade E.
3, Application (purpose): voltage transformers and insulation structures of motors and electrical equipment that require
low dielectric performance and high loss factor, and can be used in variable voltage. Used in oil.
4, Specifications: 1020*2020mm;1020*2440mm;
Thickness:2.0mm-80mm;
Product Specifications
|
No . |
Indicator |
Unit |
Index value |
|||
|
9309 |
9309~1 |
|||||
|
1 |
Density |
g/cm3 |
|
1.28~1.4 |
||
|
2 |
Vertical laminar bending strength |
Longit udinal |
MPa |
- |
≥122.5 |
|
|
Horizontal |
≥103.0 |
|||||
|
3 |
Tensile strength (thickness 1mm and above) |
Longit udinal |
MPa |
- |
≥88.2 |
|
|
Horizontal |
≥68.2 |
|||||
|
4 |
Impact strength |
Thickness 1.2~9.5mm |
Longit udinal |
kJ/m2 |
- |
≥11.8 |
|
Horizontal |
- |
≥7.8 |
||||
|
Thicker than 9.5mm |
Longit udinal |
- |
≥17.6 |
|||
|
Horizontal |
11.76 |
≥13.7 |
||||
|
5 |
Splitting strength |
kN/m |
- |
≥98 |
||
|
6 |
Mart in temperature |
°C |
- |
≥150 |
||
|
7 |
Thermal stability |
°C |
100 |
130 |
||
|
8 |
Oil resistance (transformer oil, 4h) |
°C |
- |
130 |
||
|
9 |
Insulation resistance (thickness 2mm and above) |
Normal state |
Ω |
≥1.0 x 1011 |
≥1.0 x 1011 |
|
|
After being exposed to moisture |
≥1.0 x 108 |
≥1.0 x 108 |
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|
10 |
Dielectric loss factor |
Normal state |
|
≤0.09 |
≤0.045 |
|
|
After being exposed to moisture |
≤0.10 |
|||||
|
11 |
Parallel layer withstand voltage |
5min in oil at 20°C ± 5°C |
kV |
16 |
- |
|
|
5min in oil at 90°C ± 5°C |
8 |
- |
||||
|
12 |
Parallel layer withstand voltage (90°C ± 2°C / 1min in oil above 8mm thickness) |
kV |
- |
70 |
||
|
13 |
Vol um e resistivity |
Ω.m |
≥1.0 x 1010 |
- |
||
|
14 |
Vertical layer withstand voltage (20°C ± 5°C / 5min in oil) |
kV |
22 |
- |
||
|
15 |
Bonding strength |
N |
3528 |
- |
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