| Titre : |
The measurement of water vapour permeability of leather with ISO 14268 and related methods |
| Type de document : |
texte imprimé |
| Auteurs : |
Giorgio Pozza, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 157-162 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Absorbants et adsorbants
Adsorption
Cuir
Déshydratation
Gel de silice
Perméabilité
Vapeur d'eau
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
A known technique to measure the water vapour permeability of leather is described by ISO 14268 and similar standards. These methods rely on the adsorption of the water vapour by a solid desiccant inside a closed vesse' that is separated from a conditioned atmosphere by the leather piece. The mass increase of the desiccant corresponds to the amount of moisture transmitted by the specimen and is thus used to calculate its water vapour permeability. In this investigation different desiccants are used to measure the permeability of a chrome split and of cellulosic membranes, showing that the results are influenced by the features of the desiccant. As accounted by the theoretical modal proposed, the outcome of the measurement is affected by a systematic error that leads to an underestimation of the true value of permeability. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Materials - Equipment - Measurement of the permeability
- THEORETICAL BACKGROUND : Diffusion - Adsorption dynamic of the desiccant
- RESULTS AND DISCUSSION : Permeability of the leather measured with the three silica gels G1, G2 and G3 - Adsorption dynamic ofthe silica gels - Influence of the quantity of dessicant on the permeability estimate |
| En ligne : |
https://drive.google.com/file/d/1Ef7XCtG_PkooQUO_GD_DFN8Bqupybd2A/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24556 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 99, N° 4 (07-08/2015) . - p. 157-162
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The measurement of water vapour permeability of leather with ISO 14268 and related methods in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 99, N° 4 (07-08/2015)
