Droplet Interaction with Lubricant Impregnated Surfaces

ORAL

Abstract

The interaction of water drops with lubricant impregnated surfaces was studied experimentally under static and dynamic conditions. Such surfaces contain microscopic roughness features into which a liquid lubricant is impregnated and held by virtue of capillary forces. The remarkable feature of such a construction is that droplets, immiscible to the lubricant, experience negligible resistance to movement on the surface, provided the system is designed carefully under static and dynamic considerations. We describe these considerations and present their implications to droplet mobility. We also study impacting droplets and observe shedding characteristics that are unique to lubricant impregnated surfaces.

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Authors

  • Rajeev Dhiman

    Department of Mechanical Engineering, MIT

  • Jonathan David Smith

    Department of Mechanical Engineering,MIT

  • Sushant Anand

    Massachusetts Institute of Technology, Department of Mechanical Engineering, MIT

  • Robert Cohen

    Department of Chemical Engineering, Massachusetts Institute of Technology, Department of Chemical Engineering, MIT

  • Gareth McKinley

    M.I.T. Mechanical Engineering Department, Massachusetts Institute of Technology, Department of Mechanical Engineering, Massachusetts Institute of Technology, Mechanical Engineering, MIT, Department of Mechanical Engineering, MIT

  • Kripa Varanasi

    Massachusetts Institute of Technology, Department of Mechanical Engineering, MIT