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Main Properties & Typical Values
Test Items | Unit | Test Method | Standard | Typical value |
Tensile strength | MPa | GB/T1040.3 | ≥13.5 | 24.7 |
Elongation at break | % | GB/T1040.3 | ≥350 | 521 |
Heat ageing properties (Test temperature 135℃, 168hr) Maximum tensile strength change Maximum elongation at break change |
% % |
GB/T8815 |
±20 ±20 |
12 3 |
Heat elongation （200±3)℃x15minx0.2MPa) Maximum elongation change under load Maximum permanent elongation change after cooled |
% % |
GB/T2951 |
≤80 ≤5 |
40 2 |
Impact brittle temp. (-76℃) Impact brittle | Failure no. | GB/T5470 |
≤15/30 |
pass |
Dielectric Strength | MV/m | GB/T1408.1 | ≥25 | 36 |
Dielectric loss factor 50Hz, 20℃ | -- | GB/T1409 | ≤5×10-3 | 3.1×10-4 |
Dielectric constant 50Hz, 20℃ | -- | GB/T1409 | ≤2.35 | 2.27 |
Volume resistance (20℃) | Ω·m | GB/T1410 | ≥1×1014 | 2.1×1014 |
Gel content | % | JB/T10437 | ≥80 | 85 |
Note: All typical values were tested by press moulding sample under the condition of 180±2 ℃,15min, and pressure over 15Mpa, then cooling to room temperature.
