THE ADSORPTION OF POLYOXYETHYLENATED OCTYL AND NONYLPHENOL SURFACTANTS ON CARBON-BLACK AND SULFUR FROM AQUEOUS-SOLUTIONS

被引：21

作者：

DOUILLARD, JM ^{[1
]}

POUGNET, S ^{[1
]}

FAUCOMPRE, B ^{[1
]}

PARTYKA, S ^{[1
]}

机构：

[1] UNIV MONTPELLIER,DEPT PHYS CHEM,CNRS,URA 330,F-34033 MONTPELLIER,FRANCE

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1992年 / 154卷 / 01期

关键词：

D O I：

10.1016/0021-9797(92)90083-X

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 nonionic surfactants from water solutions on the hydrophobic surfaces of sulfur and carbon black has been investigated. The isotherms and calorimetric experiments were also carried out after characterization of the solid particles. The isotherms of adsorption show the existence of a saturation plateau. The adsorption quantity depends on the length of polar and aliphatic chains. Calorimetric investigations of adsorption on the carbon black indicate the existence of considerable energetic heterogeneity. At low coverage ratios the enthalpy of adsorption is very high and exothermic. Subsequently it becomes progressively weaker and reaches the value of zero at θ = 0. © 1992.

引用

页码：113 / 121

页数：9

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