UV Irradiation Cross-linked LSZH Flame Retardant Insulation for Construction Engineering (Class B1/B2) is cured by LED UV light exposure after extrusion, requiring only a few seconds to complete cross-linking. The curing speed is dozens of times faster than traditional irradiation cross-linking, offering advantages such as high production efficiency, low equipment investment, minimal energy consumption, and energy-saving environmental benefits. This method enables simultaneous extrusion and cross-linking, significantly reducing production cycles and lowering manufacturing costs.
The B1 and B2 class products meet the B1 and B2 combustion performance requirements specified in the national standard GB 31247-2014, including flame propagation, heat release rate, total heat release, smoke density, burning drips, combustion particulates, toxicity of combustion gases, and extremely low corrosiveness.
| MAIN PERFORMANCE | ||||||||||||
| No. | Test Item | Unit | Standard | Typical Value | ||||||||
| DS-ZWG-105 | DS-ZWG-125 | DS-ZWG-105-B1 | DS-ZWG-105-B2 | |||||||||
| 1 | Specific Gravity | g/cm³ | —— | 1.49 | 1.48 | 1.58 | 1.57 | |||||
| 2 | Tensile Strength | MPa | ≥10.0 | 12.5 | 13 | 11 | 11.5 | |||||
| 3 | Elongation at Break | % | ≥150 | 170 | 175 | 160 | 165 | |||||
| 4 | Tensile Strength Change Rate | % | ≥28 | 32 | 32 | 40 | 38 | |||||
| 5 | Elongation Under Load | Rate of Change in Tensile Strength | % | ±25 | 135℃ | +10 | 158℃ | +15 | 135℃ | +15 | 135℃ | +12 |
| Maximum Change Rate of Elongation | % | ±25 | 168h | -12 | 168h | -17 | 168h | -17 | 168h | -15 | ||
| 6 | Heat Elongation: 2000.2 MPa, 15 min | Elongation under Load | % | ≤100 | 45 | 40 | 35 | 40 | ||||
| Permanent Deformation after Cooling | % | ≤25 | 0 | 0 | 0 | 0 | ||||||
| 7 | Smoke Density | Flame | —— | ≤100 | 50 | 50 | 45 | 40 | ||||
| Non-flame | —— | ≤350 | 300 | 305 | 255 | 265 | ||||||
| 8 | Volume Resistivity at 20℃ | Ω·cm | 1.0*10¹⁴ | 5.8×10¹⁴ | 5.6×10¹⁴ | 4.5×10¹⁴ | 5.0×10¹⁴ | |||||
| 9 | Dielectric Strength | MV/m | ≥20 | 30 | 30 | 28 | 28 | |||||
| 10 | Impact Catalytic Temperature | ℃ | -25 | Pass | Pass | Pass | Pass | |||||
| 11 | PH Value | —— | ≥4.3 | 5.0 | 5.0 | 5.2 | 5.1 | |||||
| 12 | HCl and HBr Content | % | ≤0.5 | <0.5 | <0.5 | <0.5 | <0.5 | |||||
| 13 | Conductivity | μS/mm | ≤10 | 0.52 | 0.53 | 0.51 | 0.52 | |||||
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