Titre du document / Document title
DYNAMIC MECHANICAL THERMAL ANALYSIS (DMTA) OF LEATHER PART 1: EFFECT OF TANNING AGENT ON THE GLASS TRANSITION TEMPERATURE OF COLLAGEN
Auteur(s) / Author(s)JEYAPALINA S.
ATTENBURROW G. E.
COVINGTON A. D.
Résumé / Abstract
We report the dynamic mechanical behaviour of leather within the temperature range - 100 to 300°C, where three major viscoelastic transitions were identified, termed a, β and y. The β transition peak represents the glass transition temperature of the amorphous region of collagen molecules. It also demonstrates that tanning agents act as plasticisers and depress the glass transition temperature to a lower temperature. Thus, the tanning process itself may be viewed as a plasticisation of the collagen molecule: the tanning molecules interpose themselves between the collagen chains, thus reducing the forces holding the chains together. Different tanning agents show differing degrees of plasticisation.
Revue / Journal TitleJournal of the Society of Leather Technologists and Chemists
Source / Source
2007, vol. 91, no
6, pp. 236-242 [7 page(s) (article)]
Langue / Language
Editeur / Publisher
Society of Leather Technologists and Chemists, Dewsbury, ROYAUME-UNI
Localisation / Location
INIST-CNRS, Cote INIST : 1027, 35400016173461.0030
Nº notice refdoc (ud4) : 19943897