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Surface energy of S-TPU(PCL)0.9/1.1 calculated using the Owens–Wendt and acid-base method.
| Sample | Owens-Wendt Method | Acid-Base Method | ||||||
|---|---|---|---|---|---|---|---|---|
| Total Surface Energy |
Diperse Part | Polar Part | Total Surface Energy |
L-W Part | Acid-Base Part | Acid Part | Base Part | |
| mN/m | mN/m | mN/m | mN/m | mN/m | mN/m | mN/m | mN/m | |
| S-TPU(PCL)0.9 | 25.87 | 25.87 | 0.00 | 28.69 | 28.14 | 0.55 | 0.24 | 0.31 |
| S-TPU(PCL)1.1 | 23.52 | 23.30 | 0.21 | 27.68 | 26.46 | 1.21 | 0.27 | 1.35 |
