摘要
评价了表面活性剂表(界)面吸附单分子层状态方程的热力学理论,分析了单分子层中表面活性剂基团之间的相互作用(亲水基之间的相互排斥,疏水基之间的相互吸引)和表(界)面下方基底液中无机盐的存在对单分子吸附层状态的影响,提出了一个新的关于表面活性剂表(界)面吸附单分子层的一般表面状态方程。结果与文献报道一致。
The thermodynamic theories about surface equation of state of a monolayer with surfactant molecules adsorbed Was thoroughly evaluated. The effects of the interactions between the surfactant molecules adsorbed in the monolayer (electrical repulsion between polar headgroups of the surfactants and hydrophobic attraction between hydrocarbon chains of the surfactants) and existance of inorganic salts in the base solution immediately below the surface (interface) to the state of the adsorbed surfactant monolayer were analyzed as well. Thereupon, a gerenal surface equation of state for surfactant adsorption at the surface (interface) was develoved, which is the same exactly as that published in the literature.
关键词
表面活性剂
表面吸附
表面状态方程
surface equation of state
surfactant
adsorption at a surface (interface)
monolayer
surface excess concentration
surface pressure
diffuse double layer
