SURFACE FREE-ENERGY COMPONENTS AND ADSORPTION PROPERTIES OF SOME POROUS GLASSES

被引:4
作者
JANCZUK, B
CHIBOWSKI, E
CHOMA, I
DAWIDOWICZ, AL
BIALOPIOTROWICZ, T
机构
[1] Department of Physical Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curle-Skłodowska Sq. 3
关键词
D O I
10.1016/0254-0584(90)90083-M
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The dispersion and nondispersion components of the surface free energy were determined on the basis of literature adsorption isotherms for water and n-octane on the surface of the controlled porosity glass and thermally treated glasses with chemically bonded Carbowax 20M. Next, using the values of the mentioned components, the work of adhesion of water, n-octane, methanol, carbon tetrachloride and benzene to surface of the glasses and the ratio of the work of adhesion to the work of cohesion were calculated. Applying these calculations a correlation between the thermal treatment time of glasses (before the Carbowax 20 M bonding) and the dispersion and nondispersion components of their surface free energy was found. Additionaly the correlation between the amounts of the liquid adsorbed on the glass surface at constant equilibrium pressure and the ratio of the work of adhesion of the liquid to the glass surface to the work of liquid cohesion were estimated. © 1990.
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页码:185 / 198
页数:14
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