Rostami, Peyman ; Hormozi, Mohammad Ali ; Soltwedel, Olaf ; Azizmalayeri, Reza ; Klitzing, Regine von ; Auernhammer, Günter K. (2023)
Dynamic wetting properties of PDMS pseudo-brushes: Four-phase contact point dynamics case.
In: The Journal of Chemical Physics, 158 (19)
doi: 10.1063/5.0142821
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
We investigate the wetting properties of PDMS (Polydimethylsiloxane) pseudo-brush anchored on glass substrates. These PDMS pseudo-brushes exhibit a significantly lower contact angle hysteresis compared to hydrophobic silanized substrates. The effect of different molar masses of the used PDMS on the wetting properties seems negligible. The surface roughness and thickness of the PDMS pseudo-brush are measured by atomic force microscopy and x-ray reflectivity. The outcome shows that these surfaces are extremely smooth (topologically and chemically), which explains the reduction in contact angle hysteresis. These special features make this kind of surfaces very useful for wetting experiments. Here, the dynamics of the four-phase contact point are studied on these surfaces. The four-phase contact point dynamics on PDMS pseudo-brushes deviate substantially from its dynamics on other substrates. These changes depend only a little on the molar mass of the used PDMS. In general, PDMS pseudo-brushes increase the traveling speed of four-phase contact point on the surface and change the associated power law of position vs time.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Rostami, Peyman ; Hormozi, Mohammad Ali ; Soltwedel, Olaf ; Azizmalayeri, Reza ; Klitzing, Regine von ; Auernhammer, Günter K. |
| Art des Eintrags: | Bibliographie |
| Titel: | Dynamic wetting properties of PDMS pseudo-brushes: Four-phase contact point dynamics case |
| Sprache: | Englisch |
| Publikationsjahr: | 2023 |
| Ort: | Melville, NY |
| Verlag: | AIP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | The Journal of Chemical Physics |
| Jahrgang/Volume einer Zeitschrift: | 158 |
| (Heft-)Nummer: | 19 |
| DOI: | 10.1063/5.0142821 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | We investigate the wetting properties of PDMS (Polydimethylsiloxane) pseudo-brush anchored on glass substrates. These PDMS pseudo-brushes exhibit a significantly lower contact angle hysteresis compared to hydrophobic silanized substrates. The effect of different molar masses of the used PDMS on the wetting properties seems negligible. The surface roughness and thickness of the PDMS pseudo-brush are measured by atomic force microscopy and x-ray reflectivity. The outcome shows that these surfaces are extremely smooth (topologically and chemically), which explains the reduction in contact angle hysteresis. These special features make this kind of surfaces very useful for wetting experiments. Here, the dynamics of the four-phase contact point are studied on these surfaces. The four-phase contact point dynamics on PDMS pseudo-brushes deviate substantially from its dynamics on other substrates. These changes depend only a little on the molar mass of the used PDMS. In general, PDMS pseudo-brushes increase the traveling speed of four-phase contact point on the surface and change the associated power law of position vs time. |
| Freie Schlagworte: | SFB1194_A09 |
| Zusätzliche Informationen: | Artikel-ID: 194703 |
| Fachbereich(e)/-gebiet(e): | DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen > Projektbereich A: Generische Experimente DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen > Projektbereich A: Generische Experimente > A02: Experimentelle Untersuchungen zur Koaleszenz und zum Aufriss von Tropfen auf festen Oberflächen - Leitkonfiguration Tropfen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1194: Wechselseitige Beeinflussung von Transport- und Benetzungsvorgängen > Projektbereich A: Generische Experimente > A06: Fließprofil nahe einer bewegten Dreiphasenkontaktlinie |
| Hinterlegungsdatum: | 07 Dez 2023 11:49 |
| Letzte Änderung: | 12 Mär 2024 09:21 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Dynamic wetting properties of PDMS pseudo-brushes: Four-phase contact point dynamics case. (deposited 05 Feb 2024 12:17)
- Dynamic wetting properties of PDMS pseudo-brushes: Four-phase contact point dynamics case. (deposited 07 Dez 2023 11:49) [Gegenwärtig angezeigt]
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