DYNAMIC SURFACE-TENSION OF HYDROCARBON AND FLUOROCARBON SURFACTANT SOLUTIONS USING THE MAXIMUM BUBBLE PRESSURE METHOD

被引：36

作者：

HIRT, DE ^{[1
]}

PRUDHOMME, RK ^{[1
]}

MILLER, B ^{[1
]}

REBENFELD, L ^{[1
]}

机构：

[1] PRINCETON UNIV,DEPT CHEM ENGN,PRINCETON,NJ 08544

来源：

COLLOIDS AND SURFACES | 1990年 / 44卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0166-6622(90)80191-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Industrial processes frequently use surfactants to lower liquid surface tension and promote wetting. In many instances, it is incorrect to apply the equilibrium (static) surface tension to predict the behavior of these processes because they operate under time-dependent (dynamic) conditions. This paper describes the measurement of dynamic surface tension, that is, the surface tension under dynamic conditions where the limitation of surfactant diffusion to the growing interface results in tensions above the equilibrium surface tension. Experimental results, obtained using the maximum bubble pressure method, are presented for aqueous solutions of hydrocarbon and fluorocarbon surfactant systems and for dilute polymer solutions. In particular, the experiments have shown the combined effects of the rate of generation of a gas/liquid interface and the surfactant concentration on the surface tension. Noteworthy are results for fluorocarbon surfactant solutions which can exhibit dynamic surface tension behavior at exceedingly small rates of surface dilation. Synergistic effects of surfactant mixtures and the effect of temperature on dynamic surface tension are presented, as well as the effects of foaming and liquid viscosity on the measurement technique. © 1990.

引用

页码：101 / 117

页数：17

共 24 条

[11] MEASUREMENT OF DYNAMIC SURFACE-TENSION BY MAXIMUM BUBBLE PRESSURE METHOD .3. FACTORS INFLUENCING MEASUREMENTS AT HIGH-FREQUENCY OF BUBBLE FORMATION AND AN EXTENSION OF EVALUATION TO ZERO AGE OF SURFACE [J].