Table 3.
Results for preliminary trial batches.
| Batch code | Thickness (mm) | Tensile strength (kg/cm2) | % elongation | Folding endurance | CPR (%) |
|---|---|---|---|---|---|
| P1 | 0.12 | 20 | 22.5 | 82 | 101.26 |
| P2 | 0.13 | 22 | 22.5 | 79 | 90.03 |
| P3 | 0.15 | 20 | 17.5 | 76 | 75.89 |
| P4 | 0.15 | 9 | 5 | 22 | 65.27 |
| P5 | 0.20 | 8 | 5 | 20 | 62.49 |