Prediction of contact angle on a microline patterned surface |
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Authors: | Donghyun Kim Woonbong Hwang |
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Institution: | Department of Mechanical Engineering, Pohang University of Science and Technology, San 31, Hyoja Dong, Nam-gu, Pohang, Kyungbuk 790-784, South Korea |
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Abstract: | The Cassie and Baxter’s equation has been modified to predict wetting phenomena on a microline patterned surface with the concept of effective solid-liquid interfacial energy. This interfacial energy was deduced from the total energy barrier at a metastable equilibrium and Helmholtz free energy. The contact angle predicted by the modified equation is reasonably close to the experimental data for the microline patterned surface. |
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Keywords: | Wetting Surface energy Solid-liquid interfaces |
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