B1 irradiation cross-linked low-smoke halogen-free flame-retardant cable sheath material is made of high-purity resin as the base material, and is mixed with halogen-free flame retardants, cross-linking agents, antioxidants, etc. and extruded and granulated.
Product features: It combines excellent properties such as halogen-free, heat-resistant, flame-retardant, low-smoke, and weather-resistant, has no precipitation pollution, meets the relevant requirements of Rohs, etc., and is easy to extrude and process.
Product application: Suitable for production of indoor and building wiring, etc.
Item | Value | Typical Value | Unit | Method |
Physical Property | ||||
Hardness | 92±3 | 92 | Shore A | GB/T 2411 |
Density | ≤1.68 | 1.65 | g/cm^3 | GB-T 1033 |
Number of failures at low temperature embrittlement temperature (-40°C) | ≤15/30 | 0/30 | PCS | GB/T 5470 |
Tensile strength before irradiation | ≥8 | 8.8 | MPa | GB/T 1040 |
Elongation at break before irradiation | ≥160 | 168 | % | GB/T 1040 |
Tensile strength before aging | ≥10 | 12.2 | MPa | GB/T 1040 |
Elongation at break before aging | ≥125 | 150 | % | GB/T 1040 |
Thermal elongation 0.2MPa×200℃×15min | ||||
Elongation under load | ≤100 | 40 | % | GB/T 2951 |
Permanent deformation | ≤25 | 0 | % | GB/T 2951 |
Aging Performance 135℃×168H | ||||
Change rate of tensile strength | ≤-30 | -18 | % | GB/T2951.12 |
Change rate of elongation at break | ≤-30 | -20 | % | GB/T2951.12 |
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℃ for 1~2 hours.
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 into the extrusion process, while ensuring the melt pressure to obtain a good appearance and material density.
3. Since the difference between the actual temperature of the melt and the indicated value of the temperature controller varies with the type of extruder, please use the extruder used.