Titre : |
Thermal stability of hide and leather at different moisture contents |
Type de document : |
texte imprimé |
Auteurs : |
Michael Komanowsky, Auteur |
Année de publication : |
1991 |
Article en page(s) : |
p. 269-280 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
Résumé : |
Differential scanning calorimetry was used to determine the phase transition of hide and chrome-tanned leather at different moisture contents. In both products phase transition occurs over a wide temperature range and is irreversible. The melting temperature of hide increases progressively from about 66°C at 200% moisture content to 221°C at approximately 0% moisture content, while the melting temperature of chrome leather remains almost constant at about 105°C down to about 30% moisture content and then increases sharply to 204°C at about 0% moisture content. It is significant, however, that at all moisture contents below 30%, the melting temperature of hide is higher than that of chrome leather and (according to published research data) higher than that of vegetable-tanned and formaldehyde-tanned leathers. The feasibility of adapting present commercial shoe-manufacturing technology to the utilization of non-chrome leathers is discussed in light of the research findings obtained. |
En ligne : |
https://drive.google.com/file/d/1mlPo0pmxFzVumJYPz4zx-b2GkP9fzEFN/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8471 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVI, N° 8 (08/1991) . - p. 269-280