Compressed Metal Powders that Remain Superhydrophobic After Abrasion

Iain Larmour, Graham C. Saunders, Steven E. J. Bell

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Superhydrophobic “lotus effect” materials are typically not sufficiently robust for most real world applications because their small surface features are both easily damaged and vulnerable to fouling. Here, a method for preparing a new type of superhydrophobic (? > 162°) composite material by compression of superhydrophobic metal particles is reported. This material, which has no natural analogue, has low-surface-energy microstructures extending throughout its whole volume. Removing its outer layer by abrasion or cutting deep into it does not result in loss of superhydrophobicity because it merely exposes a fresh portion of the underlying superhydrophobic material. The high contact angle is therefore retained even after accidental damage, and vigorous abrasion can be used to restore hydrophobicity after fouling.
Original languageEnglish
Pages (from-to)2703-2706
Number of pages4
JournalACS Applied Materials and Interfaces
Volume2
Issue number10
Early online date01 Oct 2010
DOIs
Publication statusPublished - 27 Oct 2010

ASJC Scopus subject areas

  • Materials Science(all)

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