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Contribution to Book
Superoleophobic Surfaces
Contact Angle, Wettability and Adhesion, Vol. 6 (2009)
  • Weihua Ming, Georgia Southern University
  • Boxun Leng
  • H. F. Hoefnagels
  • Di Wu, Eindhoven University of Technology
  • Gijsbertus de With, Eindhoven University of Technology
  • Zhengzhong Shao
Abstract
We report on our recent endeavor in developing superlyophobic surfaces, on which both water and hexadecane demonstrate contact angles greater than 150 degrees and, even more importantly, roll-off angles for 20-µl droplets of less than 10 degrees. Our superlyophobic surfaces are based on a multilength-scale structure, either froma raspberry-like topography or from paricle-containing woven fabrics. The multilength-scale roughness plays a major role in rendering te surfaces superoleophobic (the liquid droplets are in the Cassie wetting state), especially in terms of obtaining low hexadecane roll-off angles. In addition, surface perfluorination has proven to be essential in achieving superoleophobicity.
Keywords
  • Superlyophobicity,
  • Superhydrophobicity,
  • Superoleophobicity,
  • Multilength-Cale Roughness,
  • Suface Perfluorination
Disciplines
Publication Date
2009
Editor
K. L. Mittal
Citation Information
Weihua Ming, Boxun Leng, H. F. Hoefnagels, Di Wu, Gijsbertus de With, and Zhengzhong Shao. "Superoleophobic Surfaces" Contact Angle, Wettability and Adhesion, Vol. 6. , 2009. 191-205. isbn: 9789004169326