T1602-1-1 Effect of microstructure on sliding angle and contact-angle-hysteresis and their formulation

This study aims to formulate the relationship between sliding angle and contact-angle hysteresis on structured surface. On a structured surface, pinning effect constrains the motion of droplet. Its effect was investigated experimentally and formulated. By adding the pinning effect to existing theoretical formula. the relationship between sliding angle and contact-angle hysteresis can be well estimated.