NO. | Items | Uint | Request | Analysis result |
1 | Appearance | -- | Film surface smooth,no obvious defects and debris, clean edge without damage | Pass |
2 | Thickness | μm | 12.5±0.5 | 12.9 |
3 | Tensile strength | Mpa | MD≥220 | 225 |
TD≥220 | 223 | |||
4 | Elongation at break | % | MD≥50 | 55 |
TD≥50 | 63 | |||
5 | Young's Modulus | MPa | MD≥3100 | 3465 |
TD≥3100 | 3285 | |||
6 | Electric strength | MV/m | ≥235 | 343 |
7 | Shrinkage | % | MD±0.2 | 0.17 |
TD±0.2 | -0.01 | |||
8 | Surface tension | Dyne/cm | ≥58 | 60 |