EVA encapsulant film:
Feature:
1. Low shrinkage2. Excellent transmittance & aging resistance3. High gel content4. Sufficient flexibility
Specification:
Item | Unit | Test method | Fast Cure | |
Adhesive strength with glass | N/cm | ASTM D903 | ≥60 | |
Adhesive strength with BBF | N/cm | ASTM D903 | ≥60 | |
Shrinkage Ratio on the glass | Machine direction | % | ASTM D1204-05 | ≤3.0 |
Crossing direction | % | ≤2.0 | ||
Shrinkage Ratio on the backsheet | Machine direction | % | ≤3.0 | |
Crossing direction | % | ≤2.0 | ||
Light Transmittance | % | ASTM D1003 | ≥90.0 | |
Gel Content(150°C,30min) | % | ASTM D2765 | ≥80 | |
VA Content | Wt% | TGA | 32 | |
MFR | g/10min | ASTM D1238 | 30.5 | |
Melting Point | °C | ASTM D3417 | 60 | |
Water-absorbing Ratio | % | ASTM D570 | <0.01 | |
Hardness | Shore A | ASTM D2240 | 70 | |
Refraction Rate | / | ASTM D542 | 1.492 | |
Specific Heat | J/°C,g | ASTM C351 | 2.32 | |
Density | g/cm3 | ASTM D1506 | 0.95 | |
UV Cut off Wavelength | Nm | / | 360 | |
Volume Resistivity | Ωcm | ASTM D257 | 3.0×1013 | |
Breakdown Voltage | KV/mm | ASTM D149 | 22.2 | |
Tensile Strength | Mpa | ASTM D882 | 16.8 | |
Elongation Ratio | % | 958.98 | ||
Tensile modulus | Mpa | 10.49 | ||
UV-aging (UV,1000h) | Yellowish index | YI | ASTM G154 | ≤3.0 |
Transmittance change | % | ≤1.0 | ||
Damp Heat ( 85% RH, 85°C1000h ) | Yellowish index | YI | IEC 68 | ≤3.0 |
Transmittance change | % | ≤1.0 |
EVA encapsulant film for solar panel