Titre : |
Effect of retanning agents on dry heat resistance of leathers |
Type de document : |
texte imprimé |
Auteurs : |
Chao Wu, Auteur ; Yunhang Zeng, Auteur ; Xuepin Liao, Auteur ; Wenhua Zhang, Auteur ; Bi Shi, Auteur |
Année de publication : |
2013 |
Article en page(s) : |
p. 294-299 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Catégories : |
Agents de tannage Chaleur sèche Cuirs et peaux Résistance thermique Retannage
|
Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
Résumé : |
To obtain acceptable dry heat resistance of leather by using proper retanning agents, the effect of typical retanning agents on dry heat resistance was investigated. The results indicated that the leathers retanned by different retanning agents have varying dry heat resistance, and the dry heat resistance is not always positively correlated with hydrothermal stability. Heating leather at 150oC for 30 min in the dry state led to minor damage to the crosslinking of collagen fibers, such as destruction of hydrogen bonds or other weak crosslinks. The increase of water content in leather exhibits negative effect on the dry heat resistance. Therefore, it was observed that the retanning agent that has lower hydrophility lead to higher dry heat resistance of leather. In addition, it seems that the retanning agents with good filling property and thermal stability are effective in achieving high dry heat resistance of leather. |
Note de contenu : |
- EXPERIMENTAL : Materials - Retanning bu using different retanning agents - Characterization of leathers (analysis of dry heat resistance - Analysis of hydrothermal stability - Analysis of water content in leather - Analyses of FTIR - Thermogravimetric (TG) analysis) - Characterization of retanning
- RESULTS AND DISCUSSION : Thermal stability of different retanned leathers - Analysis of leathers by FTIR spectroscopy - Effect of water content on dry heat resistance of leather - TG analysis |
En ligne : |
https://drive.google.com/file/d/1Ib8rQhCVbFwOrrdREO48SclCNjVOTwnR/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19178 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVIII, N° 8 (08/2013) . - p. 294-299