| Total Thickness of Base Film |
μm |
50±5 |
50±3 |
49.7 |
Qualified |
| Redness Uniformity |
- |
No obvious color difference, uniform coloring |
No color difference, uniform dispersion |
No color difference, uniform dispersion |
Qualified |
| Light Shielding Rate |
% |
≥85.0 |
≥88.0 |
88.7 |
Qualified |
| Tensile Strength (Longitudinal/Transverse) |
MPa |
≥18/≥16 |
≥20/≥18 |
20.5/18.6 |
Qualified |
| Elongation at Break (Longitudinal/Transverse) |
% |
≥330/≥310 |
≥350/≥330 |
357/338 |
Qualified |
| Heat Sealing Strength |
N/15mm |
≥9.5 |
≥11.5 |
12.1 |
Qualified |
| Surface Tension |
mN/m |
≥36 |
≥38 |
39.1 |
Qualified |
| Tear Resistance (Longitudinal/Transverse) |
N |
≥14/≥12 |
≥16/≥14 |
16.5/14.7 |
Qualified |
| Moisture Barrier Performance |
g/(m²*24h) |
≤6.0 |
≤5.5 |
5.3 |
Qualified |
| Oil Resistance |
- |
No obvious swelling, discoloration or deformation |
No swelling, no discoloration, no adhesion |
No swelling, no discoloration, no adhesion |
Qualified |
| Hardness (Shore D) |
HD |
52±5 |
52±3 |
51.8 |
Qualified |
| Weather Resistance |
- |
No obvious fading, cracking or discoloration |
No fading, no cracking, no deformation |
No fading, no cracking, no deformation |
Qualified |
| Environmental Protection Performance |
- |
Complies with GB 4806.7-2016 |
Complies with GB 4806.7-2016 |
Complies with GB 4806.7-2016 |
Qualified |