Design of superhydrophobic ultraoleophobic NyCo
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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° and water contact angles of greater than 165° 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.
KeywordsContact Angle Water Contact Angle Dodecane Superhydrophobic Surface Weft Yarn
This material is based on research sponsored by Air Force Research Laboratory under agreement number FA8650-07-1-5903. The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation thereon. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of Air Force Research Laboratory or the U. S. Government. We appreciate support by US Army Natick Soldier Research Development and Engineering Center (NSRDEC) and Defense Threat Reduction Agency (DTRA).
- 11.Lee HJ, Willis C (2009) Chem Ind 21Google Scholar