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dc.contributor.authorXu, Xianmin
dc.contributor.authorWang, Xiaoping
dc.date.accessioned2016-02-28T06:32:51Z
dc.date.available2016-02-28T06:32:51Z
dc.date.issued2012-08-29
dc.identifier.citationXu X, Wang X (2012) The modified Cassie’s equation and contact angle hysteresis. Colloid and Polymer Science 291: 299–306. Available: http://dx.doi.org/10.1007/s00396-012-2748-1.
dc.identifier.issn0303-402X
dc.identifier.issn1435-1536
dc.identifier.doi10.1007/s00396-012-2748-1
dc.identifier.urihttp://hdl.handle.net/10754/599938
dc.description.abstractIn this paper, we derive a modified Cassie's equation for wetting on chemically patterned surfaces from a homogenization approach. The derivation reveals that effective contact angle is a local average of the static contact angle along the contact line which describes all possible equilibrium states including the local minimum of the free energy of the system. The usual Cassie's state which corresponds to the global minimum is only a special case. We then discuss the contact angle hysteresis on chemically patterned surfaces. © 2012 Springer-Verlag.
dc.description.sponsorshipThis publication was based on work supported in part by Award No SA-C0040/UK-C0016, made by King Abdullah University of Science and Technology (KAUST), Hong Kong RGC-CERG grants 603107 and 604209, Chinese NSFC project 11001260, and by National Center for Mathematics and Interdisciplinary Sciences, CAS.
dc.publisherSpringer Nature
dc.subjectHomogenization
dc.subjectThe Cassie's equation
dc.subjectWetting hysteresis
dc.titleThe modified Cassie’s equation and contact angle hysteresis
dc.typeArticle
dc.identifier.journalColloid and Polymer Science
dc.contributor.institutionChinese Academy of Sciences, Beijing, China
dc.contributor.institutionHong Kong University of Science and Technology, Hong Kong, China
kaust.grant.numberSA-C0040/UK-C0016
dc.date.published-online2012-08-29
dc.date.published-print2013-02


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