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Technical Specifications
Typical physical property data, subject to batch test reports.
| Test project | Units | YHS62012 |
|---|---|---|
| Density | g/cm3 | 1.22 |
| Hardness | Shore A | 98 |
| Original tensile strength (after irradiation) | MPa | 16 |
| Original elongation at break (after irradiation) | % | 300 |
| Air thermal aging (after irradiation) | ℃×h | No crack (150×240) |
| Heating deformation rate (after irradiation) | % | -15 (125℃×4H) |
| Thermal overload test | % | No crack (175℃×6H) |
| Hot elongation test | - | 200℃×15min×0.2MPa |
| Elongation under load | % | 18 |
| Permanent deformation | % | 0.2 |
| Low temperature embrittlement | ℃ | -40 pass |
| 20℃ volume resistivity | Ω.cm | 8.0×10¹⁴ |
| 20℃ dielectric strength | MV/m | 30 |
| Oxygen Index | % | 32 |
| Smoke density(Flame method) | - | - |
| Smoke density(Flameless) | - | - |
| Halogen acid content | mg/g | - |
| pH value | - | - |
| Conductivity | μs/mm | - |
| Toxicity index | - | - |
| Scratch-resistant | - | 450 |
| Liquid compatibility | ||
| Gasoline (ISO1817, liquid C), 23 ± 5℃ 20h | Finished wire diameter change rate ≤15%; finished wire has no visible wires and no cracks | |
| Fuel oil (IRM 903), 23 ± 5℃ 20h | Finished wire diameter change rate ≤15%; finished wire has no visible wires and no cracks | |
| Mineral oil (IRM 902), 50 ± 3℃ 20h | Finished wire diameter change rate ≤15%; finished wire has no visible wires and no cracks |
Extrusion Process
When the storage environment is wet or the production surface is required to be high, the particles can be dried in a hot air hopper at 70℃ for 1-2 hours.
It is recommended to use a low compression ratio screw extrusion with a compression ratio of 1.2-2.0:1.Before extrusion, the screw should be cleaned to ensure the cleanliness of the product. It is recommended to use 80 mesh or 100 mesh filter screen to avoid impurities in the extrusion process, and to ensure the melt pressure to obtain a good appearance and material density.As the difference between the actual temperature of the melt and the indicated value of the temperature control table varies with the type of extruder, the user is requested to select the appropriate temperature according to the specific situation of the extruder used.The following temperatures can be used as reference for start-up and commissioning:
| Position | Cylinder I | Cylinder Ⅱ | Cylinder Ⅲ | Cylinder Ⅳ | Cylinder Ⅴ | Head and mold |
|---|---|---|---|---|---|---|
| Temperature | 130±5 | 170±5 | 175±5 | 180±5 | 185±5 | 190±5 |
Packaging and storage
- (25 ± 0.2) kg / bag, inner aluminum plastic composite bag, outer kraft paper bag (or customer specified packaging)
- Stored in dry and ventilated place
- Prevent sun, rain and water
- Storage period is 6 months