| Titre : |
Research on thermal stability, moisture and air permeability of natural leather based on the spatial conformation of the type 1 collagen molecule |
| Type de document : |
texte imprimé |
| Auteurs : |
Zhong Anhua, Auteur ; Nian Liu, Auteur ; Xuewei Jian, Auteur ; Jingjing Li, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 250-252 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Collagène
Cuirs et peaux -- Analyse
Humidité
Perméabilité
Stabilité thermique
Structure moléculaire
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The spatial conformation model of type I collagen molecules (1 cgd) is simulated at different temperatures on the basis of Amber software firstly. Then the refationship between structure stability and the moisture permeability and air permeability of naturel leather and temperature change is researched further : Thirdly, Setting 298K, 338K, 378K and 418K as simulation temperature, the change regulation of Root Mean Square Deviation (RMSD.) [the manner in which the RMSD of 1 cgd increases with rase in lemperature] and Radius of Gyration (RG) at four kinds of temperatures are researched respectively. These researches indicate that deviation level of the molecular structure of type I collagen is different from the original molecular structure at room temperature with the increase of temperature, and the structural stability of collagen molecules decreased with the increase of temperature, and the molecular structure of proteins becomes more compact. The study result is consistent with thermal shrinkage and wrinkling phenomenon of leather in macroscopic experiment. |
| Note de contenu : |
- EXPERIMENTAL METHODS : Simulation software - Simulation parameters
- RESEARCH METHODS AND THEORIES
- RMSD : Rg
- RESULTS AND ANALYSIS : RMSD analysis |
| En ligne : |
https://drive.google.com/file/d/1_veA0YkiABmrgB_3dyfURmBYVkgsF3OZ/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29240 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 5 (09-10/2017) . - p. 250-252
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