English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Theoretical calculations of the mixed aggregation/coalescence (kFC) ratecorresponding to a set of hexadecane-in-water nano-emulsions stabilized withsodium dodecyl sulphate (SDS) at different NaCl concentrations are presented.The rates were obtained through the change of the total number of aggregates ofthe dispersions as a function of time, predicted by Emulsion StabilitySimulation (ESS). Two different models were implemented in order to mimic thedependence of the surface excess of the surfactant on the salt concentration.Experimental measurements of kFC were also made, based on the change of theturbidity of the emulsions as a function of time. A satisfactory agreementbetween theory and experiment is only attained if the model of surfactantadsorption accounts for the balance between the salting out of the surfactantsolution and the partial screening of the surface charge of the drops inducedby the increase of the ionic strength of the continuous phase. The observedbehavior cannot be justified on the grounds of theDerjaguin-Landau-Verwey-Overbeek (DLVO) theory. Instead, the reversibleflocculation of the aggregates of any size is proposed as an alternativemechanism to explain the dependence of kFC as a function of the saltconcentration.

Theoretical Prediction and experimental measurement of the mixed flocculation/coalescence rate of ionic Hexadecane-in-water nano-emulsions