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Characterisation of Wetting by Solidification of Agarose Solution Sessile Drops
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology.ORCID iD: 0000-0001-8622-0386
2008 (English)In: Journal of Adhesion Science and Technology, ISSN 0169-4243, E-ISSN 1568-5616, Vol. 22, no 15, 1919-1929 p.Article, review/survey (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2008. Vol. 22, no 15, 1919-1929 p.
Keyword [en]
Superhydrophobic, characterisation, agarose, heterogenous wetting, sessile drop, rough surfaces, water droplets, polymer, angles
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:kth:diva-18094DOI: 10.1163/156856108x320069ISI: 000262393500009Scopus ID: 2-s2.0-68949127035OAI: oai:DiVA.org:kth-18094DiVA: diva2:336140
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Superhydrophobic Cellulosic Surfaces: Preparation and Characterisation of Superhydrophobic Cellulosic Surfaces. Investigation of the Free Energy Barriers Between Cassie-Baxter and Wenzel States of Wetting
Open this publication in new window or tab >>Superhydrophobic Cellulosic Surfaces: Preparation and Characterisation of Superhydrophobic Cellulosic Surfaces. Investigation of the Free Energy Barriers Between Cassie-Baxter and Wenzel States of Wetting
2008 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2008. ix, 76 p.
Series
Trita-CHE-Report, ISSN 1654-1081 ; 2008:26
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-4714 (URN)978-91-7178-946-4 (ISBN)
Public defence
2008-05-09, D2, KTH, Lindstedtsvägen 5, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20100917Available from: 2008-04-29 Created: 2008-04-29 Last updated: 2010-09-17Bibliographically approved

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Wågberg, Lars

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