Interaction behaviour in ultrafiltration of nonionic surfactants .2. Static adsorption below CMC

被引：22

作者：

Doulia, D ^{[1
]}

Tragardh, G ^{[1
]}

Gekas, V ^{[1
]}

机构：

[1] LUND UNIV,S-22100 LUND,SWEDEN

来源：

JOURNAL OF MEMBRANE SCIENCE | 1997年 / 123卷 / 01期

关键词：

ultrafiltration; surfactant; adsorption; hydrophobic membrane; hydrophilic membrane;

D O I：

10.1016/S0376-7388(96)00211-6

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Two homologous series of nonionic surfactants, namely Rhom and Haas' tritons (alkylphenol ethoxylates) and Shell dobanols (dobanol ethoxylates) were used to characterize surface properties of ultrafiltration membranes. Static adsorption experiments were carried out to reveal the interactions developed between the membrane and the nonionic surfactant. The surfactant adsorption on the membranes depends on the chemical composition and structure of both the membranes and the surfactants used, as both chemical composition and structure determine the type of interactions controlling this adsorption illustrated on the adsorption isotherms. Distinct different behaviour was exhibited by four types of membranes of the same nominal molecular weight cut-off The influence of pH and ionic strength was studied also.

引用

页码：133 / 142

页数：10