Laminate board-Phenolic Cotton Cloth Laminate
Thermal grade E,widely range of applications in mechanical and electrical field.
Size: 1020mmX1220mm ; 1020mmX2040mm ; 1220mmX2470mm
Thickness 0.5mm to 50mm
Characteristics and applications:
3025:Mechanical applications(coarse weave),with poor electrical properties.
3026:Mechanical properties(fine weave),poor electrical properties, good machining performance.
3027:Mechanical and electrical applications(coarse weave),better electrical properties than other phenolic cotton cloth laminates.
You are warmly welcomed to raise your special requirements to design and produce more qualified and new type laminated sheets
Properties | Unit | Grade | ||||
3025 | 3025B | 3025C | 3025D | |||
Flexural strength perpendicular to laminations | ≥ | MPa | 100 | 90 | 70 | 120 |
Impact strength parallel to laminations (Charpy) | ≥ | kJ/m2 | 8.8 | 7.8 | 5.0 | — |
Bonding strength (≥10mm in thickness) | ≥ | N | — | 5500 | 5500 | — |
Dielectric strength perpendicular to lamination (in 90±2°C transformer oil, 1mm in thickness) | ≥ | kV/mm | 0.82 | — | — | — |
Breakdown voltage parallel to laminations (in 90±2°C Transformer oil) | ≥ | kV | 1 | — | — | 14(20±5°C) |
Permittivity (48-62Hz) | ≤ | — | — | — | — | — |
Insulation resistance after Impregnated in water(D-24/23) | ≥ | Ω | 1×106 | — | — | 1×107 |
Density |
| g/cm3 | (1.30-1.40) | |||
Water absorption (D-24/23, 1.6mm in thickness) | ≤ | mg | 220 | — | — | 200 |
Color |
|
| Natural | |||
Reference standard |
|
| Q/TXXFR001-2009 | |||
