EXPERIMENTAL-DETERMINATION OF SPREADING PRESSURE IN SOLID LIQUID VAPOR SYSTEMS

被引：27

作者：

BELLONFONTAINE, MN

CERF, O

机构：

[1] Laboratoire de Génie de I’Hygiène et des Procédés Alimentaires, Institut National de la Recherche Agronomique, Massy, 91300

来源：

JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | 1990年 / 4卷 / 06期

关键词：

Film pressure; Spreading pressure; Work of adhesion;

D O I：

10.1163/156856190X00441

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The basic assumption is made that the film pressure, πe, for the vapours of liquids on polar and non-polar solid surfaces is not negligible. A method is given which allows πe to be calculated from contact angle and γLV measurements. It is based on the fact that the work of adhesion, WA, has a maximum value when there is no vapour adsorption. This maximum value is, by definition, WA0. It is demonstrated that the work of adhesion of mercury gives a good estimate of WA0. Since πe = WA0, - WA, πe can be obtained easily for any liquid-solid pair. © VSP 1990.

引用

页码：475 / 480

页数：6

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