Description
The 3241 Semiconductor Glass Cloth Board is a high-performance laminated material manufactured by hot pressing alkali-free glass cloth impregnated with carbon black epoxy-phenolic resin.
This material exhibits semiconductor properties, making it suitable as anti-corona insulation between large motor grooves. In addition, it can serve as a non-metallic, wear-resistant structural material in high-stress and high-temperature environments.
With excellent mechanical strength, thermal stability, and electrical insulation, the 3241 board is ideal for demanding applications in large motors and industrial electrical equipment, where durability and reliability are critical.
Features
Laminated from alkali-free glass cloth impregnated with carbon black epoxy-phenolic resin
Exhibits semiconductor properties, suitable for anti-corona applications
High mechanical strength and rigidity
Excellent thermal stability, suitable for high-temperature environments
Wear-resistant and durable for non-metallic structural components
Provides reliable electrical insulation in demanding industrial application
Applications
Anti-corona insulation between large motor grooves
Non-metallic wear-resistant structural parts under high stress and temperature
Support components in large motor rotors and stator rings
Electrical insulation in industrial motors and heavy electrical equipment
Structural components requiring high mechanical strength, thermal stability, and electrical performance
Technical Data Sheet
| 3241 Semiconductor Epoxy Glass Sheet |
| No. | Item | Unit | Value |
| 1 | Density | g/m³ | 1.75~2.0 |
| 2 | Vertical layer bending strength (normal) | MPa | ≥300 |
| 3 | Vertical compression strength | MPa | ≥330 |
| 4 | Tensile strength | MPa | ≥200 |
| 5 | Parallel layer impact strength (simple beam method) | KJ/m2 | ≥50 |
| 6 | Vertical layer electrical strength (90 ° C transformer oil) (1 mm thick) | Kv/mm | ≥8.0 |
| 7 | Parallel layer breakdown voltage (90 ° C transformer oil) | kv | ≥35 |
| 8 | Dielectric constant (50Hz) | – |
|
| 9 | Dielectric loss factor (50Hz) | – |
|
| 10 | Insulation resistance after immersion | Ω | ≥1.0*108 |
| 11 | Resistance to Trace Index (PTI) | – | – |
| 12 | Flammability | – | HB40 |
| 13 | Temperature index | – | 130 |
| 14 | Water absorption 1 (1-20mm thick) | mg | 64-193 |