The TPU sheathing material for micro-bundle tube fiber optic cables is primarily based on polyether-type TPU and is suitable for producing sheaths for micro-bundle tube cables with diameters ranging from 3.0mm-8.0mm. It passes the single-cable vertical burning test and meets CPR-Fca or CPR-Eca flame retardancy standards, while also offering excellent abrasion and tear resistance.
| TPU Compound for Fiber Optic Cables 3.0-8.0 | |||
| Brand Number | PFUBK90300 | Category | TPU |
| Temperature Rating | 80℃ | Color | Black |
| Crosslinking method | \ | ||
| Appearance | Pellets | Processing Method | Extrusion |
| Product Features | Halogen-free, low-smoke, and easy to process; complies with RoHS and REACH requirements. | ||
| Application Scope | Indoor and outdoor flexible optical cables | ||
| Technical Characteristics | ||||
| Physical Properties | ||||
| Property | Requirement | Typical Value | Unit | Test Method |
| Density | 1.20±0.05 | 1.2 | g/cm3 | GB/T 1033 |
| (6mm)Hardness | 90±3 | 90 | HA | GB/T 2411 |
| Embryation temperature | ≤-40 | -40 | ℃ | GB/T 5470 |
| Tensile strength before aging | ≥10 | 17 | MPa | GB/T 1040 |
| Elongation at break before aging | ≥400 | 550 | % | GB/T 1040 |
| 110℃×168h-Performance after aging | ||||
| Tensile strength retention rate | ≥70 | 76 | % | GB/T 2951. 12 |
| Elongation at break retention | ≥70 | 90 | % | GB/T 2951. 12 |
| Tear Resistance | ≥40 | 40 | N/mm | CQC1103-2015 附录 B |
| Tensile strength retention rate | ≥70 | 82 | % | / |
| Elongation Retention rate | ≥70 | 85 | % | / |
| Oxygen Index | ≥25 | 25 | % | GB/T 2406 |
| UL temperature rating | 80 | 80 | ℃ | UL |