1.Description of t3025 phenolic cotton cloth laminated sheet
Phenolic cotton cloth laminated sheet/ 3025 Phenolic Cotton Fabric Laminate Sheet is a kind of insulation sheet, made of coarse cotton cloth impregnated phenolic resin by processing under heat and pressure. This product is widely used for low voltage applications ,for machines & appliances having higher voltages but lower electrical stress (slot wedges ,spacers) as material for bearing , gears , rollers & other constructional components , drilling jigs , underwater bearings , telecommunication & high frequency technique property ,oil resistance and dielectric property, as electrical materials with low electric property
2.The specification:
Heat-resistance: E Class 120
Thickness: 0.5mm-120mm
Size: 1020X2070MM 1MX2M 980X1980MM
Package: Pallet or upon the customer's request
Storage life: 1 year
3.Technical of textolite
Properties |
Unit |
Grade |
|
|
3025 |
Flexural strength perpendicularto laminations |
≥ |
MPa |
100 |
Compression strength perpendicular To laminations |
≥ |
MPa |
245 |
Bonding strength |
≥ |
N |
5400 |
Dielectric StrengthPerpendicular to Laminations(in 90±2°C transformer oil,1mm in thickness) |
≥ |
KV/mm |
0.82 |
Breakdown voltage parallelto laminations(in 90±2°CTransformer oil) |
≥ |
kV |
1 |
Permittivity(1MHz) |
≤ |
- |
5.5 |
Dissipation factor(1MHz) |
≤ |
- |
0.04 |
Insulation Resistance afterimpregnated in water |
≥ |
Ω |
1.0×106 |
Density |
|
g/cm3 |
1.45-1.5 |
Water absorption(1mm in thickness) |
|
mg |
206 |
Color |
|
- |
Brown |
Tensile strength |
≥ |
MPa |
98 |
Impact strength |
≥ |
KJ/m2 |
8.8 |
Temperature index(short time). |
≥ |
- |
120 |