Product Description:
B1-level oxygen-insulating layer material is made of high-purity resin as the base material, with halogen-free flame retardants, antioxidants, etc. mixed and extruded into granules. It has excellent performance such as halogen-free, heat-resistant, and weather-resistant, has no precipitation pollution, meets the relevant requirements of Rohs, and is easy to extrude and process.
Application Areas:
various indoor wires and cables. B1-level cables used in dense public places such as super-high-rise buildings and first-class high-rise buildings in civil buildings, shopping malls, schools, subway stations, airports, gymnasiums, hospitals, etc.
Product Parameters：
| Testing items | VALUE | Typicalvalue | UNIT | Method |
| Density | ≤1.67 | 1.65 | g/cm3 | GB/T1033 |
| Number of failures at low temperature embrittlement temperature (-25°C) | ≤ 15/30 | 0/30 | PCS | GB/T5470 |
| Environmental stress cracking resistance | ≥96 | 108 | F0/h | GB/T2951 |
| Thermal stress cracking resistance | Uncracked | Uncracked | - | GB/T32129 |
| Tensile strength before aging | ≥ 4 | 5 | MPa | GB/T2951 |
| Elongation at break before aging | ≥ 50 | 65 | % | GB/T2951 |
| Oxygen index | ≥40 | 42 | % | GB/T2406 |
| Smoke density flame method | ≤100 | 80 | / | GB/T8323 |
| Smoke density flameless method | ≤350 | 200 | / | GB/T8323 |
| Hydrogen halide gas content | ≤5 | 0 | m/g | GB/T17650 |
| Combustion gas pH value | ≥4.3 | 5.9 | / | GB/T17650 |
| Combustion gas conductivity | ≤ 10 | 6 | μs/mm | GB/T17650 |
Low smoke halogen-free flame retardant polyolefin B1 grade oxygen barrier material is mainly used for oxygen barrier of wires and cables, especially in those applications with high flame retardant grade requirements. This material can slow down the spread of flames and reduce the generation of toxic smoke in the event of a fire, thereby protecting personnel safety and reducing property losses.
1.Fireproof cable: used in places such as buildings, subways, tunnels, ships, oil platforms, etc. that require high safety standards to ensure that the cable can remain operational for a certain period of time in the event of a fire, and to ensure the power supply of key systems such as fire protection, lighting and emergency broadcasting systems.
2.Public facilities: In crowded public facilities such as airports, hospitals, schools, and commercial centers, the use of low smoke halogen-free flame retardant polyolefin B1 grade oxygen barrier material can reduce casualties and property losses in the event of a fire.
3.Special environments: In special environments such as chemical plants and mines, this material can provide additional safety and prevent chain reactions caused by fire.
The preparation method of low smoke halogen-free flame retardant polyolefin B1 grade oxygen barrier material is also constantly improving to improve its flame retardant properties, mechanical properties and processing properties. For example, by adding ceramic masterbatch, optimizing the formula and process flow, the oxygen index of the material can be increased, the heat release rate during combustion can be reduced, and good processing performance can be maintained.
In addition, this material should also meet relevant national standards, such as GB/T 31247, to ensure its reliability and effectiveness in practical applications. Through continuous technological innovation and product improvement, the performance of low-smoke halogen-free flame-retardant polyolefin B1 grade oxygen barrier material will be further improved to meet higher standard application requirements.
