This product is made of polymer resin as the base material, with cross-linking agent, antioxidant and other additives added, and is made by mixing, plasticizing and granulating. It does not contain harmful substances such as heavy metals, and has excellent mechanical and electrical properties, wide processing temperature margin and other characteristics.
Application: It is suitable for the production of photovoltaic cable insulation materials that meet the waterproof performance indicators in the requirements of EN50618:2014, IEC62930, 2PFG2750 and other standards.
| Testing items | VALUE | Typical Value | UNIT | Method |
| Density | -- | 1.15 | g/cm3 | GB/T1033 |
| Tensile Strength | ≥10 | 14.5 | MPa | GB/T1040.2 |
| Elongation at Break | ≥200 | 340 | ％ | GB/T1040.2 |
| Hot Extension 250℃ 0.2Mpa 15min | ||||
| Elongation Under Load | ≤100 | 50 | ％ | GB/T2951.21 |
| Permanent Change Rate After Cooling | ≤15 | 0 | ％ | |
| Heat Deterioration 150±2℃ 168H | ||||
| Change Rate of Tensile Strength | ≤±30 | 12 | % | GB/T2951.12 |
| Change Rate of Elongation At Break | ≤±30 | -10 | % | GB/T2951.12 |
| Impact Embrittlement Temperature | ≤15/30 | 0/30 | Pcs | GB/T5470 |
| Volume Resistivity | ≥1.0×10^13 | 1.5×10^13 | Ω·m | GB/T1410 |
| Volume Resistivity | ≥1.0×10^10 | 2.5×10^10 | Ω·m | GB/T1410 |
| Dielectric Rtrength | ≥20 | 30 | MV/m | GB/T1408.1 |
| Water Resistance AD8 | ||||
| Tensile Strength After 100 Days of Immersion In Water | ≥5 | 8 | MPa | GB/T1040.2 |
| Tensile Strength Change Rate After 28/100 Days of Immersion In Water | ≤±15 | -10 | % | GB/T2951.12 |
| Elongation At Break After 100 Days of Immersion In Water | ≥175 | 195 | % | GB/T1040.2 |
| Change Rate Of Elongation At Break After 28/100 Days of Immersion In Water | ≤±20 | -13 | % | GB/T2951.12 |
| Resistant To Damp Heat 90℃ | Relative Humidity 85% 1000H | ||||
| Change Rate of Tensile Strength | ≤-30 | -18 | % | EN60068-2-78 |
| Change Rate of Elongation at Break | ≤-30 | -19 | % | EN60068-2-78 |
| HCl and HBr Gas Release | ≤2 | 0 | mg/g | GB/T17650 |
| Combustion Gas PH Value | ≥4.3 | 5.8 | / | GB/T17650 |
| Combustion Gas Conductivity | ≤10 | 5 | μs/mm | GB/T17650 |
Notes:
1. After the extruder temperature reaches the set value before starting the machine, it needs to be kept constant for about 0.5 hours.
2. When starting the machine to discharge, the melt temperature should be controlled at about 160-170°C.
3. The recommended filter selection is a 60 mesh + 80 mesh + 60 mesh combination filter.
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