Hierarchically structured superoleophobic surfaces with ultralow contact angle hysteresis

Arun K Kota; Yongxin Li; Joseph M Mabry; Anish Tuteja

doi:10.1002/adma.201202554

Hierarchically structured superoleophobic surfaces with ultralow contact angle hysteresis

Adv Mater. 2012 Nov 14;24(43):5838-43. doi: 10.1002/adma.201202554. Epub 2012 Aug 29.

Authors

Arun K Kota¹, Yongxin Li, Joseph M Mabry, Anish Tuteja

Affiliation

¹ Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA.

PMID: 22930526
DOI: 10.1002/adma.201202554

Abstract

Hierarchically structured, superoleophobic surfaces are demonstrated that display one of the lowest contact angle hysteresis values ever reported - even with extremely low-surface-tension liquids such as n-heptane. Consequently, these surfaces allow, for the first time, even ≈2 μL n-heptane droplets to bounce and roll-off at tilt angles. ≤ 2°.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Heptanes / chemistry
Microscopy, Electron, Scanning
Microspheres
Models, Theoretical*
Oils / chemistry
Surface Properties

Substances

Heptanes
Oils
n-heptane