In line with the national standard GB/T7594.5-87, it is applicable to wire and cable generally does not extend the rubber sheath.
It is a general cable sheath for long-term allowable working temperature of 65 °C. It can completely replace the rubber compound of chloroprene rubber (CR). It has good oil resistance, cold resistance, weather resistance and flame retardancy.
Before aging | Tensile strength ≥ | Mpa | 10.0 | 11.7 | |
Elongation at break ≥ | % | 300 | 451 | ||
Air box aging test | Aging condition | temperature | ℃ | 75±2 | 75±2 |
time | h | 10×24 | 10×24 | ||
Tensile strength after aging | ≥ | Mpa | / | / | |
Rate of change ≤ | % | -15 | +2.3 | ||
Elongation at break after aging | ≥ | % | 250 | 414 | |
Rate of change ≤ | % | -25 | -9.1 | ||
熱延伸試驗(yàn) | Test conditions | Air temperature | ℃ | 200±3 | 200±3 |
Load time | min | 15 | 15 | ||
Mechanical stress | N/mm2 | 0.2 | 0.2 | ||
Elongation under load ≤ | % | 175 | 40 | ||
Permanent deformation after cooling ≤ | % | 25 | 6 | ||
浸油試驗(yàn) | Test conditions | Oil temperature | ℃ | 100±2 | 100±2 |
Oil immersion test | H | 24 | 24 | ||
Tensile strength change rate ≤ | % | ±40 | -5.6 | ||
Elongation at break elongation rate ≤ | % | ±40 | -15.2 |
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