Titre : |
Mechanical microscopic analysis in the process of stretching cowskin collagen |
Type de document : |
texte imprimé |
Auteurs : |
Zhong Anhua, Auteur ; Huang Zhuo, Auteur ; Fang Songchun, Auteur ; Zhou Meng, Auteur |
Année de publication : |
2023 |
Article en page(s) : |
p. 16-18 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Collagène -- Analyse Cuirs et peaux -- Propriétés mécaniques Cuirs et peaux de bovins Etirement (mécanique) Microscopie Traction (mécanique)
|
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
The tensile properties of cowskin leather are expressed in terms of its important mechanical properties. Variation in the collagen of cowhide is the microscopic cause of the tensile properties of cowhide. The aim of this study was to perform molecular dynamics simulations for the collagen stretching process of clothing cowhide at the rate of 0.01nm/ps, on lengths of 10nm. The changes in the RMSD (root square mean deviation of atomic position), SASA (solvent accessible surface), potential energy, and hydrogen bonding of collagen throughout the stretching process were obtained. The RMSD of the collagen fluctuated during the stretching process and tended to equilibrate. SASA increased with increasing voltage and reached a critical condition at 900 ps. In the molecular unwinding and uncoiling stage, the potential energy remained constant and it increased rapidly in the stage of stretching backbone. The numbers of hydrogen bonds within the collagen gradually decreased but increased between collagen and the aqueous solvent, with both hydrogen bonds reaching a turning point at 900ps. |
Note de contenu : |
- Research theory
- Experimental procedures
- Results and discussion : RMSD analysis - SASA analysis - Potential energy analysis - Hydrogen bonds analysis |
En ligne : |
https://drive.google.com/file/d/1_x0hOgHg-Dpk_o9VVc7w3D9eLZfokaEg/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38868 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 1 (01-02/2023) . - p. 16-18