Table 1 Mechanical characteristics of prepared films before welding.
Sample | Expancel content [%] | Film Thickness [mm] | Tensile strength [MPa] | Young Modulus [MPa] | Elongation at break [%] | Impact tensile strength [kJ/m2] | Puncture Strength [N] | |
|---|---|---|---|---|---|---|---|---|
Along extrusion direction | Across extrusion direction | |||||||
0Ex | 0 | 0.082 | 12.82 | 225.68 | 148.32 | 849.98 | 847.97 | 1.80 |
1Ex | 1 | 0.150 | 5.95 | 119.29 | 122.94 | 406.68 | 312.07 | 1.33 |
3Ex | 3 | 0.191 | 3.91 | 90.61 | 65.45 | 354.94 | 321.88 | 1.42 |
5Ex | 5 | 0.234 | 2.31 | 63.72 | 19.81 | 238.37 | 212.69 | 1.04 |
