B1 Flame Retardant cable oxygen barrier sheath material is made of high purity resin as base material, mixed with halogen-free flame retardant, antioxidant, etc. and extruded and granulated.
Product Features
It has excellent performance such as halogen-free, heat-resistant, and weather-resistant, has no precipitation pollution, meets the relevant requirements of Rohs, and is easy to extrude and process.
Product Application
It is suitable for the production of cable sheath layers with GB/T 31247 standard.
| Testing items | Value | Typical Value | Unit | Method |
| Density | ≤1.67 | 1.65 | g/cm^3 | GB/T1033 |
| Low temperature embrittlement temperature (-25℃) Failure number | ≤ 15/30 | 0/30 | pcs | GB/T5470 |
| Environmental stress cracking resistance | ≥96 | 108 | F0/H | GB/T2951 |
| Thermal stress cracking resistance | Uncracked | Uncracked | - | GB/T32129 |
| Tensile strength before aging | ≥ 4 | 5 | MPa | GB/T2951 |
| Elongation at break before aging | ≥ 50 | 65 | % | GB/T2951 |
| Oxygen index | ≥40 | 42 | % | GB/T2406 |
| Smoke density (with flame) | ≤100 | 80 | / | GB/T8323 |
| Smoke density (without flame) | ≤350 | 200 | / | GB/T8323 |
| Hydrogen halide gas content | ≤5 | 0 | m/g | GB/T17650 |
| Combustion gas pH value | ≥4.3 | 5.9 | / | GB/T17650 |
| Combustion gas conductivity | ≤ 10 | 6 | μs/mm | GB/T17650 |
Notes:
1. When the storage environment is humid or the surface quality requirements are high, the pellets can be placed in a hot air hopper at 80°C for 1 to 2 hours for drying.
2. The screw should be cleaned before extrusion to ensure the cleanliness of the product. It is recommended to use an 80-mesh or 100-mesh filter to avoid impurities from being mixed in during the extrusion process, while ensuring the melt pressure to obtain a good appearance and material density.
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