| Titre : |
Collagen thermal transitions in chrome leather - thermogravimetry and differential scanning calorimetry |
| Type de document : |
texte imprimé |
| Auteurs : |
Teresa Bosch, Auteur ; Heinz-Peter Germann, Auteur ; Hans-Jürgen Kellert, Auteur ; Agusti Marsal, Auteur ; Jaime Cot, Auteur ; Josep Carilla, Auteur ; Albert M. Manich, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 441-450 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Thermal analysis of chrome bovine leather was performed by means of thermogravimetry (TGA) and differential scanning calorimetry (DSC). The glass-transition, the crystallisation and the denaturation temperatures of the collagen molecule within the leather matrix were measured. At low moisture content one single endothermic peak which corresponds to the denaturation process of leather and the evaporation of water was detected. At higher moisture contents two endothermic peaks were detected, the first one corresponding to denaturation and the second one to evaporation of water. The temperature of the low-temperature peak decreased as the water content increased. At much higher moisture content the low temperature peak maintained its temperature being equal to the shrinkage temperature of leather determined by the IUP-16 standard method. The glass transition of room-conditioned leather determined by DSC in sealed pans was approx. 45ºC. |
| En ligne : |
https://drive.google.com/file/d/1OSRHz_EOt-pe-ehkSSADOHi9EFL35QBe/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4244 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVII, N° 11 (11/2002) . - p. 441-450
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Collagen thermal transitions in chrome leather - thermogravimetry and differential scanning calorimetry in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 11 (11/2002)
