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Wetting and Evaporation of Solvents on Thin Soluble Substrates

Wolf, Christian ; Gambaryan-Roisman, Tatiana (2022)
Wetting and Evaporation of Solvents on Thin Soluble Substrates.
In: Colloids and Interfaces, 2022, 4 (4)
doi: 10.26083/tuprints-00016171
Article, Secondary publication, Publisher's Version

Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

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Item Type: Article
Type of entry: Secondary publication
Title: Wetting and Evaporation of Solvents on Thin Soluble Substrates
Language: English
Date: 9 February 2022
Place of Publication: Darmstadt
Year of primary publication: 2022
Publisher: MDPI
Journal or Publication Title: Colloids and Interfaces
Volume of the journal: 4
Issue Number: 4
Collation: 17 Seiten
DOI: 10.26083/tuprints-00016171
Corresponding Links:
Origin: Secondary publication DeepGreen

In this work, the wetting and evaporation behaviour of non-polar solvent droplets on thin soluble coatings is investigated experimentally. The wetting process on spin-coated polymer layers by toluene is captured using shadowgraphy. Initial spontaneous dynamic wetting as well as later stages of wetting are recorded and evaluated. Furthermore, structures obtained by wetting and subsequent evaporation of solvents on polymer coatings are studied by confocal microscopy. The solubility of the substrate has been varied by using polymers with different molecular masses. We observe that initial spreading dynamics does not depend on the molar mass in the studied range. However, we find a strong influence of the molar mass on the late stage wetting dynamics and on the surface structure after solvent evaporation.

Uncontrolled Keywords: wetting of soluble substrates, spreading, evaporation, polymer coating, surface topography
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-161711
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Divisions: 16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
Date Deposited: 09 Feb 2022 14:52
Last Modified: 14 Nov 2023 19:03
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/16171
PPN: 505575027
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