Powiadomienia systemowe
- Sesja wygasła!
Tytuł artykułu
Treść / Zawartość
Pełne teksty:
Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
In this study, multiscale advancing contact angles for glycerol/water drops at silica surfaces are reported for millidrops, submicron-drops, and nanodrops. Selected silica surfaces were muscovite, silicon, and talc. The contact angles for millidrops (1–2 mm) were determined by the traditional sessile drop technique. For submicron-drops (0.1–1.0 μm), a hollow tip Atomic Force Microscope (AFM) procedure was used. The contact angles for nanodrops (~7 nm) were examined from Molecular Dynamics (MD) simulation. The results were compared to evaluate the effect of drop size on the contact angle. In the case of the hydrophobic talc surface, the 75° advancing contact angle did not vary significantly with drop size. For the hydrophilic muscovite surface, the water drop wet the surface and an advancing contact angle of about 10° was found for the millidrops and submicron-drops. However, for the MD simulated nanodrops, attachment and spreading of the ~7 nm drop created a 2D film of molecular dimensions, the contact angle of which was difficult to define and varied from 0° to 17°. Perhaps of equal interest from the MD simulation results was that the spreading of the glycerol/water nanodrop at the muscovite surface resulted in crystallographic directional transport of water molecules to the extremities of the 2D film. Such separation and segregation left the center of the film with an increased concentration of glycerol. Based on these results, the line tension, which has been found in other investigations to account for contact angle decrease with a decrease in drop size, does not seem to be a significant factor in this study.
Rocznik
Tom
Strony
art. no. 152154
Opis fizyczny
Bibliogr. 26 poz., rys., wykr.
Twórcy
autor
- Department of Materials Science & Engineering, College of Mines and Earth Sciences, University of Utah, 122 South Central Campus Drive, Room 304, Salt Lake City, UT 84112, USA
- School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China
autor
- Department of Materials Science & Engineering, College of Mines and Earth Sciences, University of Utah, 122 South Central Campus Drive, Room 304, Salt Lake City, UT 84112, USA
autor
- School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China
autor
- Department of Materials Science & Engineering, College of Mines and Earth Sciences, University of Utah, 122 South Central Campus Drive, Room 304, Salt Lake City, UT 84112, USA
autor
- Utah Nanofab, 36 South Wasatch Drive, Suite 2500, University of Utah, Salt Lake City, UT 84112, USA
autor
- Department of Materials Science & Engineering, College of Mines and Earth Sciences, University of Utah, 122 South Central Campus Drive, Room 304, Salt Lake City, UT 84112, USA
Bibliografia
- CHECCO, A., GUENOUN, P., DAILLANT, J., 2003. Nonlinear dependence of the contact angle of nanodroplets on contact line curvature. Physical Review Letters, 91, 186101.
- CHECCO, A., SCHOLLMEYER, H., DAILLANT, J., GUENOUN, P., BOUKHERROUB, R., 2006. Nanoscale wettability of self-assembled monolayers investigated by noncontact atomic force microscopy. Langmuir, 22, 116-126.
- DASHNAU, J.L., NUCCI, N.V., SHARP, K.A., VANDERKOOI, J.M., 2006. Hydrogen bonding and the cryoprotective properties of glycerol/water mixtures. The Journal of Physical Chemistry B, 110, 13670-13677.
- DOWNS, R.T., HALL-WALLACE, M., 2003. The American Mineralogist crystal structure database. American Mineralogist, 88 (1), 247-250.
- DRELICH, J., MILLER, J.D., 1994. The effect of solid surface heterogeneity and roughness on the contact angle/drop (bubble) size relationship. Journal of Colloid and Interface Science, 164, 252-259.
- GOOD, R.J., KOO, M., 1979. The effect of drop size on contact angle. Journal of Colloid and Interface Science, 71, 283-292.
- JAYASINGHE, S., EDIRISINGHE, M., 2002. Effect of viscosity on the size of relics produced by electrostatic atomization. Journal of Aerosol Science, 33, 1379-1388.
- JIN, J., MILLER, J.D., DANG, L.X., 2014. Molecular dynamics simulation and analysis of interfacial water at selected sulfide mineral surfaces under anaerobic conditions. International Journal of Mineral Processing, 128, 55-67.
- JUNG, Y.C., BHUSHAN, B., 2008. Technique to measure contact angle of micro/nanodroplets using atomic force microscopy. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 26, 777-782.
- KAMINSKI, G.A., FRIESNER, R.A., TIRADO-RIVES, J., JORGENSEN, W.L., 2001. Evaluation and reparametrization of the OPLS-AA force field for proteins via comparison with accurate quantum chemical calculations on peptides. The Journal of Physical Chemistry B, 105(28), 6474-6487.
- LETELLIER, P., MAYAFFRE, A., TURMINE, M., 2007. Drop size effect on contact angle explained by nonextensive thermodynamics. Young's equation revisited. Journal of Colloid and Interface Science, 314, 604-614.
- LI, L., ZHANG, C., YUAN, Z., XU, X., SONG, Z., 2019. AFM and DFT study of depression of hematite in oleate-starch-hematite flotation system. Applied Surface Science, 480, 749-758.
- MA, J., JING, G., CHEN, S., YU, D., 2009. Contact angle of glycerol nanodroplets under van der Waals force. Journal of Physical Chemistry C, 113, 16169–16173.
- MARK, P., NILSSON, L., 2001. Structure and dynamics of the TIP3P, SPC, and SPC/E water models at 298 K. The Journal of Physical Chemistry A, 105(43), 9954-9960.
- MASON, T.G., WILKING, J.N., MELESON, K., CHANG, C.B., GRAVES, S.M., 2006. Nanoemulsions: Formation, structure, and physical properties. Journal of Physics: Condensed Matter, 18, R635.
- ME´NDEZ-VILAS, A., BELE´N JO´DAR-REYES, A., MARI´A LUISA GONZA´LEZ-MARTI´N. 2009. Ultrasmall liquid droplets on solid surfaces: Production, imaging, and relevance for current wetting research. Small, 5(12), 1366–1390.
- MEISTER, A., JENEY, S., LILEY, M., AKIYAMA, T., STAUFER, U., DE ROOIJ, N., HEINZELMANN, H., 2003. Nanoscale dispensing of liquids through cantilevered probes. Microelectronic Engineering, 67, 644-650.
- MEISTER, A., LILEY, M., BRUGGER, J., PUGIN, R., HEINZELMANN, H., 2004. Nanodispenser for attoliter volume deposition using atomic force microscopy probes modified by focused-ion-beam milling. Applied Physics Letters, 85, 6260-6262.
- NGUYEN, A.V., NALASKOWSKI, J., MILLER, J.D., BUTT, H.-J., 2003. Attraction between hydrophobic surfaces studied by atomic force microscopy. International Journal of Mineral Processing, 72, 215-225.
- PARK, J., HAN, H.-S., KIM, Y.-C., AHN, J.-P., OK, M.-R., LEE, K.E., LEE, J.-W., CHA, P.-R., SEOK, H.-K., JEON, H., 2015. Direct and accurate measurement of size dependent wetting behaviors for sessile water droplets. Scientific Reports, 5, 1-12.
- PEARLMAN, D.A., CASE, D.A., CALDWELL, J.W., ROSS, W.S., CHEATHAM III, T.E., DEBOLT, S., FERGUSON, D., SEIBEL, G., KOLLMAN, P., 1995. AMBER, a package of computer programs for applying molecular mechanics, normal mode analysis, molecular dynamics and free energy calculations to simulate the structural and energetic properties of molecules. Computer Physics Communications, 91(1-3), 1-41.
- SZOSZKIEWICZ, R., RIEDO, E., 2005. Nucleation time of nanoscale water bridges. Physical Review Letters, 95, 135502.
- WANG, R., KIDO, M., MORIHIRO, N., 2003. An XPS and atomic force microscopy study of the micro-wetting behavior of water on pure chromium. Materials Transactions, 44, 389-395.
- WANG, R., TAKEDA, M., KIDO, M., 2002. Micro pure water wettability evaluation with an AC no-contact mode of atomic force microscope. Materials Letters, 54, 140-144.
- WEIJS, J.H., MARCHAND, A., ANDREOTTI, B., LOHSE, D., Snoeijer, J.H., 2011. Origin of line tension for a Lennard-Jones nanodroplet. Physics of Fluids, 23, 022001.
- XU, L., ZHANG, W.W., NAGEL, S.R., 2005. Drop splashing on a dry smooth surface. Physical Review Letters, 94, 184505.
Uwagi
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-41267df9-f252-4cdb-9bf9-d328f0e8f017