Superhydrophobic anodized metals and method of making same

Barbier, Charlotte N.; Simpson, John T.; D'Urso, Brian R.; Jenner, Elliot

Title: Superhydrophobic anodized metals and method of making same

Patent · Tue Jul 03 00:00:00 EDT 2018

OSTI ID:1461529

Barbier, Charlotte N.; Simpson, John T.; D'Urso, Brian R.; Jenner, Elliot

Methods for producing a superhydrophobic anodized surface including anodizing a surface of a substrate in an anodization acid to form a plurality of pores, etching the surface with an etchant to widen an edge of each of the plurality of pores; repeatedly anodizing the surface in the anodization acid and etching the surface with the etchant until the edges of the plurality of pores overlap to form a plurality of nano-sharp ridges, and coating the surface with a hydrophobic polymer to render the surface superhydrophobic, such that the surface exhibits a contact angle of at least 150 degrees with a drop of water. Articles including a surface having a series of nano-sharp pore ridges defined by a series of pores and a _mum thick layer of a hydrophobic polymer on said surface.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Number(s):: 10,011,916

Application Number:: 14/057,925

OSTI ID:: 1461529

Resource Relation:: Patent File Date: 2013 Oct 18

Country of Publication:: United States

Language:: English

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