Wolf, Christian ; Gambaryan-Roisman, Tatiana (2020)
Wetting and Evaporation of Solvents on Thin Soluble Substrates.
In: Colloids and Interfaces, 4 (4)
doi: 10.3390/colloids4040048
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Wolf, Christian ; Gambaryan-Roisman, Tatiana |
| Art des Eintrags: | Bibliographie |
| Titel: | Wetting and Evaporation of Solvents on Thin Soluble Substrates |
| Sprache: | Englisch |
| Publikationsjahr: | 30 Oktober 2020 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Colloids and Interfaces |
| Jahrgang/Volume einer Zeitschrift: | 4 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.3390/colloids4040048 |
| URL / URN: | https://www.mdpi.com/2504-5377/4/4/48 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | 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. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) |
| Hinterlegungsdatum: | 04 Nov 2020 06:10 |
| Letzte Änderung: | 03 Jul 2024 02:47 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Wetting and Evaporation of Solvents on Thin Soluble Substrates. (deposited 09 Feb 2022 14:52)
- Wetting and Evaporation of Solvents on Thin Soluble Substrates. (deposited 04 Nov 2020 06:10) [Gegenwärtig angezeigt]
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