Review on Kinetics of Spreading and Wetting by Aqueous Surfactant Solutions - Drops and Bubbles in Contact with Solid Surfaces - page 55

Figure 12. Porous nitrocellulose substrates. Apparent contact angle hysteresis variation with SDS
concentration. Nitrocellulose membranes of different average pore sizes. Open symbols correspond to
the advancing contact angle, θ a . The same filled symbols correspond to the hydrodynamic receding
contact angle, θ rh [96].
Figure 13. Non-porous nitrocellulose substrate. Advancing and receding contact angles variation with
SDS concentration. Open symbols correspond to the static advancing contact angle, θ a . Filled symbols
correspond to the static receding contact angle, θ r [96].