ADSORPTION-ISOTHERMS OF PERFLUOROCARBON SURFACTANTS FROM AQUEOUS AND NONAQUEOUS SOLUTIONS AND FRICTION MEASUREMENTS OF PERFLUOROSURFACTANT-ADSORBED ALUMINA

被引：21

作者：

LAI, CL

HARWELL, JH

OREAR, EA

KOMATSUZAKI, S

ARAI, J

NAKAKAWAJI, T

ITO, Y

机构：

[1] UNIV OKLAHOMA,SCH CHEM ENGN & MAT SCI,NORMAN,OK 73019

[2] HITACHI LTD,HITACHI RES LAB,HITACHI,IBARAKI,JAPAN

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1995年 / 104卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

ADSORPTION; ADMICELLE; BILAYER; FRICTION; PERFLUOROSURFACTANT;

D O I：

10.1016/0927-7757(95)03292-4

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：

The adsorption of a series of perfluorocarbon surfactants C(n)F2(n+1)COONa (n = 6, 7, and 8) and CnF2n+1COOH (n = 6, 7, and 8) on aluminum oxide surfaces has been studied experimentally. Isotherms from aqueous and non-aqueous solutions, respectively, were measured, and the effects of pH and fluorocarbon chain length on the adsorption behavior and the maximum level of adsorption determined. Contact angles and friction coefficients for adsorbed films of surfactant on alumina chips were also measured as a function of pH and surfactant concentration. Friction coefficients were reduced while contact angles increased.

引用

页码：231 / 241

页数：11

共 24 条

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