Table 2 Wetting properties of experimental surfaces defined by the static θ0, advancing θa, and receding θr contact angles, contact angle hysteresis Δθ, and mobility M.
Surface | θ0(∘) | θa(∘) | θr(∘) | Δθ (∘) | M (m/rad ⋅ s) | M (Ca/rad) |
|---|---|---|---|---|---|---|
PDMS on glass | 109 | 109 | 106 | 3 | 0.24 | 0.003 |
Teflon (unsanded) | 110 | 120 | 75 | 45 | 0.15 | 0.002 |
Sanded Teflon, 240 grit | 151 | 152 | 148 | 4 | 0.31 | 0.004 |
Sanded Teflon, 120 grit | 151 | 159 | 102 | 57 | 0.32 | 0.004 |
