This product is mainly applied to the outer sheath of bundled A-class flame-retardant power cables. It features good extrusion fluidity, low torque load during processing, and the advantage of low carbonization height in combustion tests.
Product model and name:
TWH1400 90-degree low smoke zero halogen flame retardant polyolefin sheath material
Performance indicators (typical values) : Execution standard: GB/T32129
Serial number | Test project | Unit | Indicator | Typical value | |
1 | Tensile strength | MPa | ≥10 | 1.54 | |
2 | Elongation at break | % | ≥150 | 170 | |
3 | Air thermal aging | Test conditions | 100℃×168h | ||
Maximum rate of change of tensile strength | % | ±30 | +7.0 | ||
The maximum rate of change of elongation at break | % | ±30 | -12.7 | ||
4 | Volume resistivity at 20℃ | Ω.m | ≥1×1010 | 2.3×1011 | |
5 | Oxygen index | % | ≥35 | 38 | |
6 | Hardness | ShoreA | 96±2 | 97 | |
7 | Halogen acid gas release | The contents of HCI and HBr | % | ≤0.5 | 0 |
HF content | % | ≤0.1 | 0 | ||
pH value | / | ≥4.3 | 0 | ||
Electrical conductivity | μS/mm | ≤10 | 5 | ||
8 | Density | g/cm3 | 1.54±0.02 | 1.54 | |
Application process reference
It is recommended that the temperature of the extruder body be 125 to 165℃. Head temperature: 165℃ to 170℃. It is recommended to use low smoke zero halogen screws with a compression ratio of 1.2 to 1.6. The maximum melt temperature is suggested to be controlled within 180℃.
Packaging and storage
The product is packed in moisture-proof aluminum foil polyethylene composite film bags, with 25kg per bag. It is transported by single-pallet stacking, with each pallet weighing 1000kg or 1200kg.
It should be stored in a clean, dry and well-ventilated environment. The suitable storage temperature is 0℃ to 35℃.
The product is vacuum-packed. It is strictly prohibited to stack it up and down during transportation and storage.
The validity period is 6 months under suitable storage conditions.