A new method for evaluating the most stable contact angle using tilting plate experiments

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Introduction

Contact angle measurements are used in many applications where the study of the solid–liquid affinity is a matter of interest. Each solid–liquid–vapor system is characterized by a range of observable contact angles, usually referred to as the contact angle hysteresis range. This range is defined by the Advancing Contact Angle (ACA) and the Receding Contact Angle (RCA), which are further the most meaningful angles because they are related to the shear and tensile adhesion forces.