| Titre : |
Studies on the origin of hydrothermal stability : a new theory of tanning |
| Type de document : |
texte imprimé |
| Auteurs : |
Anthony D. Covington, Auteur ; Graham Lampard, Auteur ; R. A. Hancock, Auteur ; I. A. Ioannidis, Auteur |
| Année de publication : |
1998 |
| Article en page(s) : |
p. 107-120 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Research into the thermodynamics of shrinking, the process of heat denaturation of collagen or leather, has demonstrated a relashionship between the activation energy of the reaction and the conventionally measured shrinkage temperature. This reaction is independent of the tannage, concerning instead the breaking of hydrogen bonds. It is postulated that the shrinkage temperature depends on the size of crosslinked macromolecular moieties, or 'cooperating units', formed during tannage. These, in turn, depend on the nature of the tanning agent's interaction with collagen. High hydrothermal stability depends on structure-making crosslinks. These depend on the crosslinking moiety having a 'stiff' structure and there being a non labile reaction between the crosslinking moiety and the collagen. These rules constitute a new theory of tanning. |
| Note de contenu : |
- The shrinking reaction
- Cooperating units
- Hydrothermal stability : Multiple interactions - Covalent bonds - Steric considerations - Crystallinity |
| En ligne : |
https://drive.google.com/file/d/1PYet4SRyRycispwwFrxzyRTZQNg-CrFd/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4520 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCIII, N° 4 (04/1998) . - p. 107-120
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Studies on the origin of hydrothermal stability : a new theory of tanning in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIII, N° 4 (04/1998)
