Diffusion-controlled evaporation of sodium dodecyl sulfate solution drops placed on a hydrophobic substrate

Doğancı, Merve Dandan; Sesli, Belma Uyar; Erbil, H. Yıldırım

doi:10.1016/j.jcis.2011.06.060

Cited by 50 publications

(45 citation statements)

References 43 publications

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“…Calculations according to the described procedure show that within the limits of experimental errors it can be concluded that β does not depend on surfactant concentration for all the temperatures and relative humidities studied. The same is true for the SDS solutions studied by Doganci et al [20]. The latter allowed applying the earlier developed theory for pure water for the case under consideration ( Figures S3 and S4).…”

Section: Comparison Of the Experimental Data For Evaporation Of Surfasupporting

confidence: 57%

“…In Figure 7 the experimental data published by Doganci et al [20] for their experiments using SDS surfactant (55% H, 21ºC) together with our results for SILWET L-77 (90% RH, 18ºC) are presented. Figure 7 proves that the agreement with theory predictions is similar for both surfactants although the scattering around the universal curve for the second evaporation stage seems to be higher for the SDS data.…”

Section: Comparison Of the Experimental Data For Evaporation Of Surfamentioning

confidence: 84%

“…However, in the case of comparison presented in Figure 3 as well as comparison with experimental data on evaporation of SDS solutions presented in [20] a different procedure was used. That is below the parameter β was calculated for cases mentioned above directly from the experimental data according to the following procedure.…”

Section: Comparison Of the Experimental Data For Evaporation Of Surfamentioning

confidence: 99%

“…The studies encompass different conditions: constant pressure and temperature, elevated pressure, fast compression, still gas atmosphere and turbulent reacting flows, strongly and weakly pinning substrates [1,2]. The experimental, theoretical and computer simulation studies carried out so far [1][2][3][18][19][20][21][22][23][24][25][26][27] have taken into account different physical processes: heat transfer inside droplets, mass diffusion in bi-and multicomponent fluids, droplet interactions in sprays, turbulence, radiation absorption, thermal conductivity of the solid substrate, Marangoni convection inside the droplets.…”

Section: Introductionmentioning

confidence: 99%

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Evaporation of Droplets of Surfactant Solutions

Semenov

Trybała

Agogo³

et al. 2013

Langmuir

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The simultaneous spreading and evaporation of droplets of aqueous trisiloxane (superspreader) solutions onto a hydrophobic substrate has been studied both experimentally, using a video-microscopy technique, and theoretically. The experiments have been carried out over a wide range of surfactant concentration, temperature and relative humidity. Similar to pure liquids, four different stages have been observed: the initial one corresponds to spreading till the contact angle, θ, reaches the value of the static advancing contact angle, θad. Duration of this stage is rather short and the evaporation during this stage can be neglected. The evaporation is essential during next three stages.The next stage after the spreading, which is referred to below as the first stage, takes place at constant perimeter and ends when θ reaches the static receding contact angle, θr. During the next, second stage, the perimeter decreases at constant contact angle θ=θr for surfactant concentration above critical wetting concentration (CWC). The static receding contact angle decreases during the second stage for concentrations below CWC because the concentration increases due to the evaporation. During the final stage both the perimeter and the contact angle decrease till the drop disappears. Below we consider only the longest stages one and two.The developed theory predicts universal curves for the contact angle dependency on time during the first stage, and for the droplet perimeter on time during the second stage. A very good agreement between theory and experimental data has been found for the first stage of evaporation, and for the second stage for concentrations above CWC, however, some deviations were found for concentrations below CWC.3

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Section: Comparison Of the Experimental Data For Evaporation Of Surfasupporting

confidence: 57%

Section: Comparison Of the Experimental Data For Evaporation Of Surfamentioning

confidence: 84%

Section: Comparison Of the Experimental Data For Evaporation Of Surfamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaporation of Droplets of Surfactant Solutions

Semenov

Trybała

Agogo³

et al. 2013

Langmuir

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“…Addition of a surfactant to aqueous droplet facilitates evaporation of water, because it results in a decrease of the contact angle and therefore in an increase of the contact line radius [30*, 31*, 43,44]. The equilibrium contact angle decreases with the increase of surfactant concentration and levels off at a concentration called critical wetting concentration, CWC [4*, 43].…”

Section: Aqueous Surfactant Solutionsmentioning

confidence: 99%

Evaporation of sessile droplets

Kovalchuk

Trybała

Starov

2014

Current Opinion in Colloid & Interface Science

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Recent developments in the studies of evaporation of liquid droplets placed on a solid substrate are reviewed for the droplet size typically larger than 1 μm, so that kinetics effects of evaporation are neglected. The attention is paid to the limits of applicability of classical diffusion model of evaporation, effect of substrate, evaporation of complex fluids and applicability for its description of the theory developed for pure liquids, and hydrothermal waves accompanying evaporation.

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