Drying-Induced Hierarchical Dimple Patterns on Partially Miscible Polymeric Films Under Ordered Convections

Autor:	Yoshihide Mawatari, Masato Yamamura, Hiroyuki Kage, Shintaro Eikai
Rok vydání:	2013
Předmět:	Convection Materials science Marangoni effect Interfacial stress Hexagonal crystal system General Chemical Engineering engineering.material Microstructure Quantitative Biology::Subcellular Processes Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Coating Dimple Chemical physics engineering Physical and Theoretical Chemistry Physics::Atmospheric and Oceanic Physics Water vapor
Zdroj:	Drying Technology. 31:1212-1218
ISSN:	1532-2300 0737-3937
Popis:	We describe the formation of hierarchical dual dimple patterns on polymeric sublayers by evaporation-induced interfacial stress. As water vapor condenses on partially miscible volatile sublayers, the resulting unstable wet-on-wet configurations trigger droplet assembly under ordered convection, giving rise to hexagonal traces of surface dimples, which coexist with highly ordered dimple arrays. Monitoring the time-dependent Marangoni numbers proved that the interfacial stress plays a crucial role in the transition between hierarchically and uniformly ordered dimple patterns.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::38ee37c7b2eb393aabfa1189d11db385 https://doi.org/10.1080/07373937.2013.783591 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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