论文标题
溶解速率的浊度评估：在选定的氯化钠浓度下，十二烷纳米液的溶解在7.5 mm十二烷基硫酸钠溶液中
Turbidimetric evaluation of the solubilization rate: dissolution of dodecane nanodrops in 7.5 mM sodium dodecylsulfate solutions at selected sodium chloride concentrations
论文作者
论文摘要
在与表面活性剂溶液接触的宏观下降油的半径下，可以评估胶束溶解度（SR）的速率[Todorov，2002]。或者，可以将液体分散液溶解所需的时间用于此目的。在这里，研究了7.5 mm十二烷基硫酸钠（SDS）中水（D/W）纳米乳液的浊度的降低。这些盐度对应于非聚集（<300），聚集促进（500）和表面活性剂降水状态（> 700）。发现SR等于2.3 x 10^-11，在没有盐的情况下观察到的值的一半是在其临界胶束浓度上方的整齐水性表面活性剂溶液（7.0 <cmc <8.7 mm sds [Deodhar，2020年]）。
The rate of micelle solubilization (SR) can be appraised following the decrease of the radius of a macroscopic drop of oil in contact with a surfactant solution [Todorov, 2002]. Alternatively, the time required for the dissolution of a liquid dispersion can be used for this purpose. Here, the decrease of the turbidity of a dodecane-in-water (d/w) nanoemulsion in 7.5 mM sodium dodecylsulfate (SDS) is studied at sodium chloride concentrations of 100, 300, 500, 700, 900, and 1000 mM NaCl. These salinities correspond to non-aggregating (< 300), aggregation-promoted (500) and surfactant precipitation regimes (> 700). It is found that SR is equal to 2.3 x 10^-11, half the value observed in the absence of salt for a neat aqueous surfactant solution above its critical micelle concentration (7.0 < cmc < 8.7 mM SDS [Deodhar, 2020]).
