Production description:
1.Heat resistance class: H
2.Raw material: Presspaper is made from 100% superior sulfate insulating wood pulp.
3.Characteristics: It has good dielectric and high mechanical properties.
4.Usage: Presspaper is widely used for transformers, electrical motors, electrical apparatus, meters, switches, etc.
It can also be used to laminate with polyester film to produce insulation flexible laminates.
| Properties | Units | Values | ||
| Thickness | mm | 0.1-0.5 | ||
| Thickness Tolerance | % | ≤±10 | ||
| Density | g/cm3 | 1.0-1.2 | ||
| No Bending | ≥80 | |||
| MD | MPa | |||
| Tensile Strength | ||||
| After Bending | ≥35 | |||
| No Bending | ≥40 | |||
| TD | ||||
| After Bending | ≥60 | |||
| Moisture Content | % | ≤8.0 | ||
| Ash Content | % | ≤1.0 | ||
| Electric Conductivity | Ms/m | ≤8.0 | ||
| PH of Water Extractives | 6.0-9.0 | |||
| 0.10mm | ≥9.0 | |||
| Electric breakdown Strength (in air) | KV/mm | |||
| 0.15-0.25mm | ≥10 | |||
| 0.30-0.35mm | ≥10 | |||
| 0.40-0.50mm | ≥9.0 | |||
| 0.10-0.15mm | ≥7.0 | |||
| Electric breakdown Strength (in air), after bending | KV/mm | |||
| 0.20-0.25mm | ≥8.0 | |||
| 0.30mm | ≥8.0 | |||
| 0.35-0.50mm | ≥7.0 | |||