Reference : Texture characterization of ultramacroporous materials using non-destructive methods
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Physical, chemical, mathematical & earth Sciences : Physics
Engineering, computing & technology : Chemical engineering
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/14124
Texture characterization of ultramacroporous materials using non-destructive methods
English
[fr] Caractérisation de la texture de matériaux ultraporeux par des méthodes non-destructives
Blacher, Silvia mailto [Université de Liège - ULg > Département de chimie appliquée > Labo de génie chimique > >]
Maquet, Véronique [Université de Liège - ULg > > > > Centre d'études et de rech. sur les macromolécules (CERM) > >]
Léonard, Angélique mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires - Département de chimie appliquée >]
Chapelle, Gérard [Université de Liège - ULg > > > Centre d'études et de rech. sur les macromolécules (CERM) > >]
Crine, Michel mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires >]
Jérôme, Robert mailto [Université de Liège - ULg > > Centre d'études et de rech. sur les macromolécules (CERM) >]
Pirard, Jean-Paul mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
2002
Studies in Surface Science and Catalysis
Elsevier Science
158
331-338
Yes
International
0167-2991
Amsterdam
The Netherlands
[en] image analysis ; X-ray microtomography ; foam
[fr] PLA foam
[en] Image analysis, impedance spectroscopy and X-ray microtomography have been used as non-destructive methods in order to characterize ultramacroporous materials (pore width > 1 mum). These methods are used to investigate the texture of different kinds of materials, i.e., highly oriented polylactide (PLA) foams prepared by freeze-drying, isotropic polyolefin foams prepared by thermal degradation of a chemical foaming agent and convective heat dried wastewater sludges. The image analysis of SEM micrographs recorded at different magnifications gave information on the pore size distribution and pore morphology. Impedance spectroscopy was used to investigate the transport properties of the three-dimensional porous matrices by measurement of the water ionic conduction. Finally, 3D image reconstruction from 2D cross-sections obtained by X-ray microtomography allowed visualizing the pore structure.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/14124

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