According to GB/T759 4.9-87 standard production; that is, 85~C generally does not extend the rubber sheathing compound. It is used for general cable sheathing of conductors with long-term working temperature of 85~C. It has certain oil/heat/cold/weather resistance and high flame retardancy. It can be used directly as a marine cable sheath and can completely replace chlorine. Butadiene rubber (CR) compound.
| Before aging | Tensile strength ≥ | Mpa | 11.0 | 12.7 | |
| Elongation at break ≥ | ％ | 300 | 440 | ||
| Air box aging test | Aging condition | temperature | ℃ | 75±2 | 75±2 |
| time | 7×24 | 7×24 | |||
| Tensile strength after aging | ≥ | Mpa | ／ | ／ | |
| Rate of change ≤ | ％ | -30 | -3 | ||
| Elongation at break after aging | ≥ | ％ | 200 | 402 | |
| Rate of change ≤ | ％ | -40 | -13 | ||
| Thermal extension test | 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 | 20 | ||
| Permanent deformation after cooling ≤ | ％ | 15 | 4 | ||
| Oil immersion test | Test conditions | Oil temperature | ℃ | 100±2 | 100±2 |
| Oil immersion test | H | 24 | 24 | ||
| Tensile strength change rate ≤ | ％ | -40 | -5 | ||
| Elongation at break elongation rate ≤ | ％ | -40 | -3 | ||
Marine cable sheathing compound (XH-21A) 2019-8-30 本文被阅读 4978 次
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Contact: Manager Zhang
Mobile: 15966121563
Landline: 0536-7371003
Company Address: Hanting District, Weifang City, Shandong ProvinceLingang Logistics Industrial Park South Road
