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 |