Calculation of contact angle for hydrophobic powders using heat of immersion data

被引：38
|
作者：
Spagnolo, DA [1 ]
Maham, Y [1 ]
Chuang, KT [1 ]
机构：
[1] UNIV ALBERTA,DEPT CHEM ENGN,EDMONTON,AB T6G 2G6,CANADA
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 16期
关键词：
D O I：
10.1021/jp951405m
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：
Heat of immersion (Delta H-im) data are frequently used to investigate the surface characteristics of solids. In this study, the relationship between the heat of immersion and the contact angle is established from first principles for hydrophobic powders. The heat of immersion of three fluorinated carbons in water is obtained by extrapolating the Delta H-im data obtained for dilute mixtures of 1-propanol and water to the point of pure water. The Delta H-im values for pure water are then used to calculate the contact angle associated with the hydrophobic powders.
引用
收藏
页码：6626 / 6630
页数：5
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