Characterization of gels via solvent desorption measurements

[en] The present paper shows how a standard volumetric adsorption device can be used to measure solvent desorption isotherms on gels. As gels are very soft materials, they shrink significantly during the measurement, and the data have to be analyzed in terms of the mechanical properties of the gel's skeleton. Methanol desorption isotherms are measured on a series of silica gels, and the results are compared with independent characterizations, notably beam bending.

Disciplines :

Chemical engineering
Materials science & engineering

Author, co-author :

Gommes, Cédric ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée

Noville, Francis ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée

Pirard, Jean-Paul ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée

Language :

English

Title :

Characterization of gels via solvent desorption measurements

Publication date :

2007

Journal title :

Adsorption

ISSN :

0929-5607

eISSN :

1572-8757

Publisher :

Springer, United States

Volume :

Issue :

5-6

Pages :

533-540

Peer reviewed :

Peer Reviewed verified by ORBi

Funders :

F.R.S.-FNRS - Fonds de la Recherche Scientifique

Available on ORBi :

since 25 August 2009

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