Application Field
This product is divided into multiple models according to differnt physical properties (only part is shown here). It can be applied to optical fiber, optical cable, indoor and outdoor micro-tube, remote cable, round cable, UV-resistant cable, etc.
Product Parameters
| Testing items | VALUE | Typical Value | UNIT | Method |
| Granule size | 3-7 | mm | \ | |
| Hardness | D40-D60 | D55 | / | GB/T 2411 |
| Density（20℃） | 1.85±0.05 | 1.75 | g/cm3 | GB/T 1033 |
| Tensile strength | ≥4 | 8.3 | MPa | \ |
| Elongation at break | ≥50 | 102 | ％ | \ |
| Amount of halogen acids | ≤5 | 0.1 | Mg/g | IEC 60754 |
| PH | ≥4.3 | 5.4 | / | IEC 60754 |
| Conductivity | ≤10 | 7 | µs/mm | IEC 60754 |
| LOI | ≥40 | 44 | % | GB/T 2406 |
Microtube fiber optic cable jacket material is an important material used to protect optical fiber and provide mechanical strength. Microtube fiber optic cables usually use special jacket materials to ensure the stability and durability of optical fiber in various environments.
1. Thermoplastic polyester elastomer (TPEE): The microtube of microtube optical cable is usually made of TPEE material, which has the elasticity of rubber and the strength of engineering plastics, providing good processing performance and long service life. TPEE material is soft and easy to tear, convenient for construction, and has excellent bending performance, which reduces the risk of tube bending and fiber breakage when the optical fiber is coiled in the joint box. In addition, TPEE has a low shrinkage rate, and long-term use will not cause problems such as optical fiber emitting and fiber paste overflow.
2. LSZH (low smoke zero halogen) material: LSZH is an environmentally friendly material used for double-layer jackets of indoor optical cables, providing good flame retardant properties. In the event of a fire, LSZH material can reduce the generation of smoke and improve safety. The micro-beam tube is filled with optical fiber and water-blocking material, and the outer surface is evenly provided with protrusions along the circumference of the radial section. These protrusions can deform when subjected to force to provide additional protection.
