Transparent EVA series encapsulation film with high transparency (EVA01) and high cut-off (EVA09) is suitable for the encapsulation of various solar photovoltaic modules.
- Best light transmission performance and long-term retention, EVA01 for high transmission type, EVA09 for UV cut-off type.
- Excellent PID resistance and snail grain resistance.
- Excellent weather resistance, including high temperature, high humidity, UV and other characteristics.
- Excellent compatibility, good bonding with glass, solder tape and bus ribbons, battery cells, backsheets and other materials.
- Optimal maneuverability, easy stacking, good lamination exhaustion, short time, high efficiency.
| Item | Unit | Reference standard | EVA01 |
EVA09 |
|---|---|---|---|---|
| Width | mm | JW method | 800–1400 | 800–1400 |
| Nominal thickness | mm | JW method | (0.2–0.8) ± 0.10 | (0.2–0.8) ± 0.10 |
| Heat shrinkage | % | ASTM D1204 | |TD| ≤ 1.5 |MD| ≤ 3.0 |
|TD| ≤ 1.5 |MD| ≤ 3.0 |
| Tensile strength | MPa | ASTM D882 | ≥ 16 | ≥ 16 |
| Elongation | % | ASTM D882 | ≥ 450 | ≥ 450 |
| (380–1100nm) Transmittance |
% | ASTM D1003 | ≥ 91 | ≥ 91 |
| (280–380nm) Transmittance |
% | ASTM D1003 | ≥ 80 | ≤ 25 |
| Degree of crosslinking | % | ASTM D2765 | 80–95 | 80–95 |
| Volume resistivity | Ω·cm | ASTM D257 | ≥ 1.0 × 10¹⁵ | ≥ 1.0 × 10¹⁵ |
| Electrical strength | kV/mm | GB/T 29848-2018 | ≥ 25 | ≥ 25 |
| Peeling strength with glass | N/cm | ASTM D903 | > 60 | > 60 |
| Peeling strength with backsheet | N/cm | ASTM D903 | > 60 | > 60 |
| Damp-heat testing (85°C × 85%RH, 1000h) | – | ASTM E313 ASTM D903 |
ΔYI < 4.0 | ΔYI < 4.0 |
| N/cm | ASTM E313 ASTM D903 |
> 30 | > 30 | |
| Ultraviolet aging (120kWh/m²) | – | ASTM G154 ASTM D903 |
ΔYI < 4.0 | ΔYI < 4.0 |
| N/cm | ASTM G154 ASTM D903 |
> 30 | > 30 |
