Design of Superhydrophobic Ultraoleophobic NyCo (POSTPRINT)

Abstract

The apparent contact angles of dodecane droplets deposited on a 50:50 nylon:cotton blended woven fabric (NyCo) were measured, and the characteristics required for an ultraoleophobic surface were described. The metastable Cassie -Baxter model, a transition status from the original Cassie-Baxter model to the Wenzel model, was investigated to design ultraoleophobic surfaces and to understand the wetting behavior of such surfaces. Using chemical and geometrical modifications of NyCo, a surface having contact angles to dodecane of greater than 150 deg. and water contact angles of greater than 165 deg. has been prepared. Good agreement between the predicted and measured contact angles was obtained. Developing a superhydrophobic ultraoleophobic material has been achieved by two criteria: a low-surface-energy and a properly designed surface morphology.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2010
Accession Number
ADA554510

Entities

People

  • Hoon Joo Lee
  • Jeffery R. Owens

Organizations

  • North Carolina State University

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Alcohols
  • Composite Materials
  • Electron Microscopes
  • Electron Microscopy
  • Equations
  • Governments
  • Hydrophobic Properties
  • Hydroxides
  • Materials
  • Military Research
  • North Carolina
  • Physical Properties
  • Surface Energy
  • Surface Tension

Fields of Study

  • Chemistry

Readers

  • Agricultural Chemistry/Soil Science
  • Computational Modeling and Simulation
  • Surface Coatings Technology.