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Modification of adsorption, aggregation and wetting properties of surfactants by short chain alcohols
Advances in Colloid and Interface Science ( IF 15.6 ) Pub Date : 2020-09-11 , DOI: 10.1016/j.cis.2020.102249
Anna Zdziennicka , Bronisław Jańczuk

The adsorption of methanol, ethanol and propan-1-ol at the solution-air and solid-solution interfaces, their aggregation in the aqueous media as well as wetting properties regarding their applications as additives or co-surfactants in the surfactants aqueous solution were discussed based on the literature data. Mutual influence of alcohols and surfactants on the solution-air and solid-solution interface tension was considered. For this purpose there were used different methods allowing to describe or predict changes of water surface tension as a function of alcohols concentration. These, in turn, as a function of alcohol and/or surfactant concentration were also analyzed by means of the methods applied for prediction of surface tension of aqueous solution of the classical surfactants mixture. The same considerations related to the behaviour of alcohol and surfactant at the solid-solution and solution-air interfaces were made. To explain the behaviour of alcohols and surfactants mixture at the solution-air and solid-solution interfaces the components and parameters of water, alcohols, surfactants and solids surface tension as well as the Gibbs free energy changes during the adsorption process were taken into account. It was proved that wettability of some solids can be predicted based on alcohol and surfactants adsorption as well as surface tension components and parameters. As follows the mutual influence of alcohol and surfactant on their adsorption at the solution-air and solid-solution interfaces as well as on the wetting properties at the alcohol concentration from zero to its critical aggregation concentration (CAC) is different from that at its concentration higher than CAC.



中文翻译:

短链醇改变表面活性剂的吸附,聚集和润湿性能

讨论了甲醇,乙醇和丙-1-醇在溶液-空气和固溶体界面上的吸附,它们在水性介质中的聚集以及关于在表面活性剂水溶液中用作添加剂或助表面活性剂的润湿性能根据文献数据。考虑了醇和表面活性剂对溶液-空气和固溶体界面张力的相互影响。为此,使用了不同的方法来描述或预测水表面张力随酒精浓度的变化。进而,还通过用于预测经典表面活性剂混合物的水溶液的表面张力的方法分析了这些作为醇和/或表面活性剂浓度的函数。进行了与酒精和表面活性剂在固溶和溶液-空气界面处的行为有关的相同考虑。为了解释醇和表面活性剂混合物在溶液-空气和固溶界面的行为,考虑了水,醇,表面活性剂和固体的表面张力以及吸附过程中吉布斯自由能变化的成分和参数。事实证明,可以通过醇和表面活性剂的吸附以及表面张力的成分和参数来预测某些固体的润湿性。

更新日期:2020-09-26
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