INFLUENCE OF SURFACE MODIFICATION OF POROUS GLASSES ON THEIR SURFACE FREE-ENERGY

被引：11

作者：

HOLYSZ, L ^{[1
]}

DAWIDOWICZ, AL ^{[1
]}

CHIBOWSKI, E ^{[1
]}

STEFANIAK, W ^{[1
]}

机构：

[1] MARIE CURIE SKLODOWSKA UNIV,FAC CHEM,DEPT CHEM PHYS,PL-20031 LUBLIN,POLAND

来源：

JOURNAL OF MATERIALS SCIENCE | 1991年 / 26卷 / 16期

关键词：

D O I：

10.1007/BF00543649

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Investigations of zeta-potential changes of initial and thermally treated controlled-porosity glasses (CPGs), whose surfaces were covered with different amounts of n-octane and/or nitromethane, are presented. The dispersive (gamma-s-d) and non-dispersive (gamma-s-n) components of the surface free energy were then calculated using the relationships obtained. Gamma-s-d was found to be practically independent of the treatment time (a small increase in the range of 4 mJ m-2 can be seen), but a considerable decrease in gamma-s-n was observed (from 76.95 to 27.2 4 mJ m-2). In the case of CPG modified with gamma-aminopropyltriethoxysilane an increased hydrophobic character of the surface was found. This was reflected in increased gamma-s-d and decreased gamma-s-n values.

引用

页码：4344 / 4350

页数：7

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