No. | Index name | Unit | Value |
1 | vertical bending strength | MPa | ≥340 |
2 | parallel impact strength | KJ/m2 | - |
3 | water absorbency | mg | - |
4 | vertical electrical strength | Kv/mm | 13-19.5 |
5 | vertical layer voltage resistance | KV | - |
6 | parallet layer breakdown voltage | KV | ≥35 |
7 | dielectric constant | ≤5.5 | |
8 | dielectric loss factor | ≤0.04 | |
9 | surface resistivity | Ω | - |
10 | volume resistivity | MΩ·m | - |
11 | heat resistance grade | ≥5x104 |