The Class B1 flame-retardant, low-smoke zero-halogen (LSZH) sheath material is primarily based on flame-retardant polyolefin. It is suitable for manufacturing Class B1 cables that meet the GB/T 31247 flame-retardancy requirements, as well as for producing the outer sheaths of various butterfly-style (flat-drop) optical cables. It complies with the relevant testing requirements for Class B1 flame retardancy specified in GB/T 31247.
| Brand Number | PFXBK953366 | Category | LSZH |
| Temperature Rating | 90℃ | Color | Black |
| Crosslinking Method | / | ||
| Appearance | Pellets | Processing Method | Extrusion |
| Product Features | Halogen-free low smoke emission, long-term aging resistance, easy processability wear resistance, and compliance with ROHS and REACH requirements. | ||
| Application Scope | Butterfly Cable sheath material | ||
| Technical characteristics | ||||
| Physical Properties | ||||
| Property | Requirement | Typical Value | Unit | Test Method |
| Density | ≤ 1.6 | 1.56 | g/cm3 | GB/T 1033 |
| Hardness at 15" | 95±3 | 95 | Shore A | GB/T 2411 |
| Tensile strength | ≥9 | 11.5 | MPa | GB/T 1040 |
| Elongation at break | ≥ 125 | 162 | % | GB/T 1040 |
| Air thermal aging experiment | 100℃*168 h | / | ||
| Tensile strength | ≥9 | 12 | MPa | GB/T 1040 |
| Elongation at break | ≥ 100 | 175 | % | GB/T 1040 |
| Change rate of tensile strengt | ≤±40 | 12.1 | % | GB/T 2951.12 |
| Change rate of elongation at break | ≤±40 | -9.3 | % | GB/T 2951.12 |
| Flame Retardant Properties | ||||
| Property | Requirement | Typical Value | Unit | Test Method |
| LOI | ≥30 | 38 | % | GB/T2406 |
| Smoke Density | ≥60 | 86.32 | % | GB/T 8323 |
| B1 | Pass | Pass | / | GB/T31247 |
| Halogen-Free Properties | ||||
| Property | Requirement | Typical Value | Unit | Test Method |
| PH Value | ≥3.5 | 5.5 | / | GB/T 17650 |
| Conductivity | ≤ 10 | 1.6 | μs/mm | GB/T 17650 |