Hongjian Polymer
Marine cable sheathing compound
This product is produced according to GB/T 7594.9-87 standards; ordinary duty flame-retardant rubber sheath 85 Centigrade.
List 2 Indicator requirements and measured performance
| No. | Test item | Unit | Requirements | Results | |
| Before aging | Tensile strength | Mpa | ≥10.0 | 11.9 | |
| Elongation at break | ％ | ≥300 | 457 | ||
| Air oven aging test | Ageing condition | Temperature | ºC | 100±2 | 100±2 |
| Time | h | 7×24 | 7×24 | ||
| Change rate of anti-expansion strength | ％ | ±30 | -6 | ||
| Elongation at break after aging | Median | ％ | ≥250 | 425 | |
| Change rate | ％ | ±40 | -7 | ||
| Thermal extension test | Test conditions | Air temperature | ºC | 200±3 | 200±3 |
| Load time | min | 15 | 15 | ||
| Mechanical stress | N/cm2 | 20 | 20 | ||
| Elongation under load | ％ | ≤175 | 15 | ||
| Permanent deformation after cooling | ％ | ≤15 | 8.6 | ||
| Oil immersion test | Test conditions | Oil temperature | ºC | 100±2 | 100±2 |
| Oil immersion time | h | 24 | 24 | ||
| Tensile strength change rate | ％ | ±40 | -5 | ||
| Change rate of elongation at break | ％ | ±40 | 2 | ||
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