Epoxy phenolic glass cloth laminated sheet is made of alkali-free E-glass cloth impregnated with epoxy resins and phenolic resins by processing under heat and pressure.
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Features
This product having high mechanical and dielectric properties, fine heat and humidity resistance, can be used in electrical machine and devices as insulating construction parts in moist circumstances and in transformer oil
Technical Data
| ITEM | UNIT | VALUE | |
| 3240 | Jan-40 | ||
| Density | g/cm3 | 1.70～1.90 | 1.70～1.95 |
| Martens heat resistance (LW)≥ | ℃ | 200 | 200 |
| Flexural strength≥ | MPa | ||
| Perpendicular to lamination | 400 | 360 | |
| parallel to lamination | 300 | 270 | |
| Tensile strength≥ | MPa | ||
| Perpendicular to lamination | 350 | 320 | |
| parallel to lamination | 250 | 230 | |
| Adhesion force≥ | N | 5680 | 5600 |
| Impact strength≥ | kJ/m2 | ||
| Perpendicular to lamination | 150 | 130 | |
| parallel to lamination | 100 | 120 | |
| Surface resistivity≥ | Ω | ||
| Under normal condition | 1×1013 | — | |
| After impregnated in water | 1×1011 | — | |
| Volume resistivity≥ | Ω.cm | ||
| Under normal condition | 1×1013 | — | |
| After impregnated in water | 1×1011 | — | |
| Insulation resistance parallel to lamination≥ | Ω | ||
| Under normal condition | 1×1010 | — | |
| After impregnated in water | 1×108 | — | |
| Loss tangent, 50Hz≤ | — | 0.05 | — |
| Pressing strength≥ | MPa | ||
| Perpendicular to lamination | 250 | — | |
| Parallel to lamination | 150 | — | |
| Voltage breakdown perpendicular to lamination in transformer oil at 90±2℃≥ | kV/mm | ||
| Thickness：0.5～1mm | 22 | — | |
| Thickness：1.1～2mm | 20 | — | |
| Thickness：2.1～3mm | 18 | 15 | |
| Voltage breakdown parallel to lamination in transformer oil at 90±2℃≥ | kV | 30 | 28 |
| Area of the sheets | mm | 980×1980,1020×2040 | |
+86-15111278083
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mickey998
+86-15111278083
