We measure directly solid-liquid work of adhesion using Centrifugal Adhesion Balance (CAB) which allows coordinated manipulation of normal and lateral forces to induce an increase in the normal force which pulls on a liquid drop while keeping zero lateral force. This method mimics a drop that is subjected to a gravitational force that is gradually increasing. The values obtained for the work of adhesion are independent of drop size and are in agreement with the Dupré estimate.

Solid-liquid work of adhesion

254th National Meeting (2017)

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