Table 1 Surface energy of P(VDF-TrFE-CTFE) films.
UVO treating time (min) | Contact angle (o) | γspmJ m−2 (a) | γsdmJ m−2 (a) | γsmJ m−2 (b) | |
|---|---|---|---|---|---|
Water | Toluene | ||||
0 | 94.2 | 4.0 | 1.7 | 27.4 | 29.1 |
15 | 76.0 | 3.6 | 10.1 | 23.3 | 33.4 |
30 | 70.0 | 3.2 | 14.2 | 22.1 | 36.3 |
60 | 62.0 | 2.6 | 20.5 | 20.6 | 41.1 |