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Technical Specifications
Typical physical property data, subject to batch test reports.
| Test project | Units | Standard | YHS62020-G |
|---|---|---|---|
| Density | g/cm3 | — | 1.45 |
| Hardness | Shore A/D | — | 98/52 |
| Tensile Strength | ≥MPa | 6 | 8.98 |
| Elongation at break | ≥% | 100 | 260 |
| Thermal Aging | ℃×h | 100×240 | — |
| Tensile Strength (after aging) | ≥MPa | — | — |
| TS Change rate | ≤% | ±30 | — |
| Elongation at break (after aging) | ≥% | — | — |
| EB Change rate | ≤% | ±30 | — |
| Volume Resistivity | ≥Ω·m | 1.0×10¹⁰ | 4.7×10¹² |
| Dielectric Strength | ≥MV/m | 18 | 22 |
| Impact Brittleness Temperature (failure count ≤) | — | 15/30 | 0/30 (-45℃) |
| Smoke Density — Flaming | ≤ | 100 | 44 |
| Smoke Density — Non flaming | ≤ | 350 | 133 |
| Acidity of gases evolved (PH)≥ | — | 4.3 | 6.3 |
| Conductivity of gases evolved | ≤μS/mm | 10 | 0.5 |
| Content of halogen acids | ≤mg/g | 0.5 | 0 |
| Toxicity | ≤ | 2.5 | 0.6 |
| Environmental stress crack resistance | ≥96h | pass | pass |
| Thermal stress crack resistance | ≥96h | pass | pass |
| Performance after sintering — Bending strength | ≥MPa | — | 15.6 |
| Performance after sintering — Volume Resistivity | ≥Ω·m | — | ≥2.0×10¹⁷ |
| Performance after sintering — Dielectric Strength | ≥MV/m | — | ≥40 |
| Performance after sintering — Ceramic retention | ≥% | — | 85 |
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 with L / D≥20 and compression ratio of 1: 1.2 ~ 1.5. The screw should be cleaned before extrusion to ensure the cleanliness of the product. It is recommended to use 80 mesh or 100 mesh filter to avoid impurities in the extrusion process, while ensuring the melt pressure to obtain a good appearance and material compactness. Because the difference between the actual temperature of the melt and the value indicated by the temperature control meter varies with the type of extruder, users are requested to choose the appropriate temperature according to the specific situation of the extruder used. The following temperatures can be used as a reference for commissioning:
| Position | Cylinder I | Cylinder II | Cylinder III | Cylinder IV | Cylinder V | Head and mold |
|---|---|---|---|---|---|---|
| Temperature (℃) | 150±5 | 160±5 | 170±5 | 170±5 | 175±5 | 175±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