University of Massachusetts

Sagar Mitra

Joey L Mead

Carol M F Barry

Hanna Dodiuk-Kenig

Artee Panwar

Samuel Kenig

Tehila Nahum

Jason Constantinou

An object has a durable superhydrophic, self-cleaning, and icephobic coating includes a substrate and a layer disposed on the substrate, the layer resulting from coating with a formulation having an effective amount of hierarchical structuring micro/nanoparticles, liquid silane having one or more groups configured to graft to a hierarchical structuring micro/nanoparticle and at least another group that results in hydrophobicity. The hierarchical structuring micro/nanoparticles are dispersed in the liquid silane. Another effective amount of synthetic adhesive, selected from thermosetting binders, moisture curing adhesives or polymers that form a strong interaction with a surface, is in solution with a solvent. Upon curing, the layer has a contact angle greater than 90&#xb0; and a sliding angle of less than 10&#xb0; and, less than 5% of an area of the layer is removed in a Tape test.

Methods and formulations for durable superhydrophic, self-cleaning, and superhydrophobic polymer coatings and objects having coatings thereon

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Lowell, MA, United States of America

Sagar Mitra