The effect of surface anisotropy on contact angles and the characterization of elliptical cap droplets
查看参考文献41篇
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文摘
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In this paper, the variation of contact angles of a droplet on grooved surfaces was studied from microscale to macroscale experimentally and theoretically. The experimental results indicated that the contact angle changes nonlinearly with anisotropic factor. To get clear of the changing process of contact angle on grooved surfaces from microscale to macroscale, we carried out theoretical analysis with moment equilibrium method being adopted. In addition, the variation of contact angles in different directions was investigated and a mathematic model to calculate arbitrary contact angles around the elliptic contact line was suggested. For the convenience of potential applications, a symbolic contact angle was proposed to characterize the ellipsoidal cap droplet on grooved surfaces. Our results will offer help to the future design of patterned surfaces in practical applications, and deepen the understanding of wetting behavior on grooved surfaces. |
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来源
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Science China. Technological Sciences
,2018,61(2):309-316 【核心库】
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DOI
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10.1007/s11431-017-9149-1
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关键词
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droplet
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contact angle
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ellipse
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contact line
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grooved surface
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地址
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1.
Institute of Mechanics,Chinese Academy of Sciences, State Key Laboratory of Nonlinear Mechanics, Beijing, 100190
2.
School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1674-7321 |
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学科
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化学 |
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基金
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国家自然科学基金
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the Chinese Academy of Sciences (CAS) through CAS Interdisciplinary Innovation Team Project
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the CAS Key Research Program of Frontier Sciences
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the CAS Strategic Priority Research Program
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文献收藏号
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CSCD:6190195
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