NO. | Test Items | Values | |
|---|---|---|---|
| Before ageing test | |||
| 1.2 Elongation at break(%) | |||
| 2.1 Test condition | 135±2℃/168h | ||
| ≥5.0 | |||
| 2.3 Tensile strength rate(%) | |||
| 2.4 Elongation at break rate (%) | ±30 | ||
| Air bomb ageing test | 3.1 Test condition | 127±2℃/40h, stress 0.55<span ±0.02MPa | |
| 3.2 Tensile strength rate(%) | ±30 | ||
| 3.3 Elongation at break rate (%) | ±30 | ||
| 4 | 4.1 Test condition | ||
| 4.2 Loading elongation rate(%) | < 175 | ||
| 4.3 Un-loading elongation rate(%) | < 25 | ||
| 5 | Ozone ageing test | 5.1 Test condition | |
| 5.2 Test result | No cracks | ||