Research

The influence of mercury contact angle, surface tension, and retraction mechanism on the interpretation of mercury porosimetry data


Reference:

Rigby, S. P. and Edler, K. J., 2002. The influence of mercury contact angle, surface tension, and retraction mechanism on the interpretation of mercury porosimetry data. Journal of Colloid and Interface Science, 250 (1), pp. 175-190.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below.

Abstract

The use of a semi-empirical alternative to the standard Washburn equation for the interpretation of raw mercury porosimetry data has been advocated. The alternative expression takes account of variations in both mercury contact angle and surface tension with pore size, for both advancing and retreating mercury meniscii. The semi-empirical equation presented was ultimately derived from electron microscopy data, obtained for controlled pore glasses by previous workers. It has been found that this equation is also suitable for the interpretation of raw data for sol-gel silica spheres. Interpretation of mercury porosimetry data using the alternative to the standard Washburn equation was found to give rise to pore sizes similar to those obtained from corresponding SAXS data. The interpretation of porosimetry data, for both whole and finely powdered silica spheres, using the alternative expression has demonstrated that the hysteresis and mercury entrapment observed for whole samples does not occur for fragmented samples. Therefore, for these materials, the structural hysteresis and overall level of mercury entrapment is caused by the macroscopic (>similar to30 mum), and not the microscopic (

Details

Item Type Articles
CreatorsRigby, S. P.and Edler, K. J.
DOI10.1006/jcis.2002.8286
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code5097
Additional InformationID number: ISI:000175801400022

Export

Actions (login required)

View Item