Measured capillary forces on spheres at particle-laden interfaces

摘要: We measure capillary forces on particles at fluid interfaces in order to assess the key parameters that yield effective stabilizing particles. In our experiments, a millimeter-scale particle is attached cantilever, which used pull perpendicular interface. Simultaneously, we image from side cantilever's deflection and thus pulling force, as well height of shape find peak force an interface crowded with other consistently smaller than clean This result independent difference mass densities, material target sphere, charge free attribute reduction perturbation due constraints boundaries The results should be helpful designing stabilize droplets new oil dispersants or applications.