Table 1 Surface tension and contact angle measurement techniques.
From: Controlling unequal surface energy results caused by test liquids: the case of UV/O3 Treated PET
Surface tension, static methods | Surface tension, dynamic methods | Contact angle methods |
|---|---|---|
Pendant drop | Bubble pressure | Sessile drop |
Wilhelmy plate | Drop volume/weight | Wilhelmy |
Ring/Du-NoĂ¼y | Falling curtain (Mach angle) | Washburn |
Spinning drop | Â | Top-view distance |
Sessile drop | Â | Â |