Angreen has developed polyolefin flame retardant materials (LSZH) specifically to meet the high flame retardancy and high safety requirements of cables, optical cables and network cables. Compared with traditional polyolefin flame retardant materials, LSZH materials have undergone longer research and development and more comprehensive and rigorous comprehensive performance tests. It has been comprehensively improved in raw material selection, formula design, flame retardant system compounding innovation, lubrication system innovation and production process control. It is a new upgraded version of traditional LSZH materials.
Product features:
More reliable flame retardant performance: can be used to manufacture optical cables, cables and network cables, etc., and support passing EN50575 and GB31247 combustion tests
Higher safety: supports cables to pass UL758/1581 105℃ temperature resistance test (136℃/168Hrs)
Better wear resistance: more than 50,000 wear tests effectively avoid wear and cracking
Better processing performance: high-speed extrusion, long-term stable processing, no drooling, skin breakage, particles and other defects
Application areas: Angreen's low-smoke halogen-free materials are widely used in the manufacture of cables, optical cables and grid lines in the fields of photovoltaic cables, home decoration cables, rail transportation, etc.
Flame-retardant polyolefin LSZH cable material is a special type of cable material that combines the excellent physical properties of polyolefins with the environmental protection characteristics of LSZH (low smoke zero halogen). This material produces less smoke when burned and does not contain halogen, so it does not produce toxic gases. It is particularly suitable for occasions with high safety and environmental protection requirements, such as subways, high-rise buildings, ships, oil platforms, etc.
The performance requirements of LSZH cable materials vary depending on the application, including tensile strength, elongation at break, aging temperature, volume resistivity, oil resistance, scratch resistance, softness and flame retardancy requirements. These performance indicators need to be optimized according to different cable types and usage environments.
In general, LSZH cable materials have broad application prospects in the wire and cable industry due to their excellent flame retardant properties and environmental protection characteristics.
| No. | Testing Items | VALUE | Typicalval | UNIT | Method |
| 1 | Granule size | 3-7 | mm | / | |
| 2 | Hardness | D40-D60 | D52 | / | GB/T 2411 |
| 3 | Density | 1.65±0.05 | 1.62 | g/cm3 | GB/T 1033 |
| 4 | Tensile strength | ≥10 | 12.9 | MPa | IEC 60811-501 |
| 5 | Elongation at break | ≥170 | 205 | ％ | IEC 60811-501 |
| 6 | heat deterioration 100±2℃，168h | ||||
| Tensile strength retention | ≥70 | 85 | % | IEC 60811-501 | |
| Elongation at break retention | ≥70 | 90 | % | IEC 60811-501 | |
| 7 | Pressure at 80℃ for 6 hours | 50 | 50 | % | IEC 60811-508 |
| 8 | Brittlement temperature | ≤-25 | -25 | ºC | GB/T 5470 |
| 9 | Light resistance at 70ºC | 2000 | hours | / | |
| 10 | Amount of halogen acids | ≤5 | 0.1 | Mg/g | IEC 60754 |
| 11 | pH | ≥4.3 | 5.2 | / | IEC 60754 |
| 12 | Conductivity | ≤10 | 6 | µs/mm | IEC 60754 |
| 13 | LOI | ≥29 | 30 | % | GB/T 2406 |
| 14 | Volume resistivity(20ºC) | 5×1013 | Ω·cm | GB/T 1410 | |
| 15 | Volume resistivity(70ºC) | 5×1011 | Ω·cm | GB/T 1410 | |
| 16 | Dielectric strength | ≥20 | 28 | KV/mm | GB/T 1408.1 |
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