Hydrophilic/hydrophobic surface pattern design for oil repellent function in water
by Nobuyuki Moronuki; Hirokazu Tachi; Yashio Suzuki
International Journal of Nanomanufacturing (IJNM), Vol. 11, No. 1/2, 2015

Abstract: Oil droplets on a hydrophilic surface are easier to remove than that on a hydrophobic surface in water due to the difference in interfacial force balances. Properly designed hydrophilic/hydrophobic pattern promotes the motion of droplet contact line which leads to self-cleaning surface. This study aims to discuss the surface design in addition to the measurement of oil droplet adhesion force. It was found that star-like hydrophobic pattern propels oil droplet better than dot or rectangular pattern with the help of directional force component. Finally, proper specification was discussed based on the experiments.

Online publication date: Thu, 09-Jul-2015

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