Table 3.
Surface tension of PP and SEBS at room temperature [17,23,24] and the calculated interfacial tension values as per Equation (2).
| Component | γ (mN/m) | γd (mN/m) | γp (mN/m) |
|---|---|---|---|
| PP | 40.3 | 37.8 | 2.5 |
| SEBS a | 25.54 | 22.9 | 2.6 |
| Carbon Black (CB) | 99 | 95.7 | 3.3 |
| Composition | γ (mN/m) as per Equation (2) | ||
| PP/SEBS | 1.8 | ||
| PP/CB | 13.2 | ||
| SEBS/CB | 24.9 | ||
a The polar and dispersive components of surface tension for SEBS was obtained by adopting a similar methodology as shown by [24], where only ethylene-butylene group is considered as it is the major component of block copolymer (SEBS).