This product is made of high-purity resin as the base material, with halogen-free flame retardants, cross-linking agents, antioxidants and other additives added through mixed plasticization and granulation. It is ultra-resistant to low temperature, mineral oil and fuel oil.
Product application: Suitable for the production of standard wall thickness wires and cables for rail transit locomotives in accordance with EN50264 related standards.
| Testing items | Value | Typica Value | UNIT | Method |
| Physical Property | ||||
| Hardness | 94±3 | 95 | Shore A | GB/T2411 |
| Density | ≤1.50 | 1.45 | g/cm^3 | GB-T1033 |
| Low-temperature brittle temperature | ≤15/30 | 0/30 | PCS | GB/T5470 |
| Tensile strength before irradiation | ≥8 | 8.6 | MPa | GB/T1040 |
| Elongation at break before irradiation | ≥200 | 200 | % | GB/T1040 |
| Tensile strength before aging | ≥10 | 13.6 | MPa | GB/T1040 |
| Elongation at break before aging | ≥150 | 170 | % | GB/T1040 |
| Thermal elongation 0.2MPa×200℃×15min | ||||
| Elongation under load | ≤100 | 10 | % | GB/T2951 |
| Permanent deformation | ≤25 | 0 | % | GB/T2951 |
| Aging Performance 135℃×168H | ||||
| Change rate of tensile strength | ≤±30 | 14 | % | GB/T2951.12 |
| Change rate of elongation at break | ≤±30 | -12 | % | GB/T2951.12 |
| 902 # oil resistant 100℃×72H | ||||
| Change rate of tensile strength | ≤±30 | -18 | % | GB/T2951.12 |
| Change rate of elongation at break | ≤±40 | -24 | % | GB/T2951.12 |
| 903 # oil resistant 70℃×168H | ||||
| Change rate of tensile strength | ≤±30 | -17 | % | GB/T2951.12 |
| Change rate of elongation at break | ≤±40 | -26 | % | GB/T2951.12 |
| Acid And Alkali Resistant | ||||
| H₂C₂O₄ | ||||
| Change rate of tensile strength | ≤30 | -21 | % | GB/T2951.12 |
| Elongation at break | ≥100 | 135 | % | GB/T2951.12 |
| NaOH | ||||
| Change rate of tensile strength | ≤30 | -16 | % | GB/T2951.12 |
| Elongation at break | ≥100 | 143 | % | GB/T2951.12 |
| Electrical performance | ||||
| 20℃ volume resistivity | ≥1.0×10^15 | 2.2×10^15 | Ω.cm | GB/T1410 |
| Dielectric strength | ≥20 | 25 | MV/m | DIN EN 6024 |
| Flame Retardant And Combustion Performance | ||||
| Oxygen index | ≥30 | 35 | % | GB/T2406 |
| Halogen acid gas generation | ≤0.5 | 0.1 | mg/g | IEC60754 |
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 to dry for 1 to 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.
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