Dynamic interfacial properties of drops relevant to W/O-emulsion-forming systems: A refined measurement apparatus

Phase inversion emulsification: Current understanding and applications

“…Such kinetic stability can also be achieved by exploiting surfactants, which are amphiphilic molecules stabilizing droplets by lowering interfacial tension and eliciting Marangoni stresses [6]. The role of surfactants and amphiphiles in general in lowering interfacial tension [7][8][9][10][11], their adsorption behavior as well as the interface behavior both in static and dynamic conditions [12][13][14][15][16][17][18][19][20][21][22][23][24][25] have been widely studied. Emulsions having fine droplet size are more stable against phase separation and widely exploited in application also due to their capability to incorporate hydrophilic or hydrophobic species.…”

Estudio Experimental de la Tensión Interfacial Transitoria para Sistemas Alcanos-Agua-Triton X-100 empleando la Técnica de la Gota Emergente

“…En la actualidad los surfactantes son empleados como agentes inhibidores en la formación de hidratos durante el transporte del gas natural (Chang et al, 2004). El estudio del comportamiento de los surfactantes ha cobrado vital importancia, razón por la cual se han desarrollado técnicas novedosas que son aplicadas para la medición de propiedades físicas de sistemas que involucran a los mismos (Gaudio et al, 2008;Karasawa et al, 2007), tales como la tensión interfacial, a través de la cual se pueden estudiar los procesos de adsorción (enriquecimiento de un componente en la interfase en comparación con el interior de la fase) que ocurren para este tipo de sistemas a nivel de la interfase generada. En estudios anteriores se han determinado la tensión interfacial de sistemas alcano-agua y obtenido correlaciones para el cálculo de la tensión en función de la temperatura y el número de átomo de carbono (Zeppieri et al, 2001).…”

Drop Size Dependence of the Apparent Surface Tension of Aqueous Solutions in Hexane Vapor as Studied by Drop Profile Analysis Tensiometry

“…As long as the value of this error (for the sake of simplicity we call the fitting error in the drop profile analysis only Error), which is defined as the standard deviation of the calculated to the experimental drop/bubble profile, remains in the limit of the order of the profile detection accuracy, all experimental conditions are chosen well. As soon as the distribution of the deviations around the profile shows a particular pattern [9], or the error value goes beyond the given limit (typically 1-2 µm), systematic errors can be expected.…”