Characterisation of Wetting by Solidification of Agarose Solution Sessile Drops

Autor:	Oskar Werner, Bert Pettersson, Lars Wågberg
Rok vydání:	2008
Předmět:	Aqueous solution Materials science Drop (liquid) Surfaces and Interfaces General Chemistry Wetted area Surfaces Coatings and Films Contact angle Glass spheres chemistry.chemical_compound Sessile drop technique chemistry Mechanics of Materials Materials Chemistry Agarose Wetting Composite material
Zdroj:	Journal of Adhesion Science and Technology. 22:1919-1929
ISSN:	1568-5616 0169-4243
Popis:	A new method for characterising the wetting of structured surfaces is presented. Sessile drops of a warm agarose solution were placed on test surfaces and then removed after the gelation of the agarose solution caused by the cooling of the drop. By studying the base of the sessile drops using confocal microscopy and image processing it was possible to determine the wetting mode and general appearance of the liquid-gas interface beneath the drop. The method also shows potential to measure the wetted area, and local contact angles beneath the footprint of a sessile drop. The applicability of the method was also demonstrated by its application to periodically structured photopolymer plates and surfaces covered by microsized glass spheres.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::01b28d90b10b284bc94324be07ad9780 https://doi.org/10.1163/156856108x320069 Zobrazit plný text záznamu Plný text ve formátu PDF