| Titre : |
A novel approach for wet-white leather manufacture based on tannic acid-laponite nanoclay combination tannage |
| Type de document : |
texte imprimé |
| Auteurs : |
Jiabo Shi, Auteur ; Ren Keshuai, Auteur ; Wang Chunhua, Auteur ; Wang Jie, Auteur ; Lin Wei, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 25-30 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Argile
Laponite
Nanoparticules
Tanins
Tannage combinéLe tannage combiné se dit des tannages qui allient deux familles ou genre de tannage pour obtenir un résultat additionnant les qualités complémentaires des tannins mis en œuvre par exemple Chrome-Végétal ou Chrome-Synthétique
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminium
Wet-white (tannage)
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
A novel wet-white tanning approach based on combination tanning with tannic acid (TA) and Laponite nanoclay has been proposed. Thermal stability measurements show that the introduction of Laponite nanoclay gives an obvious increase in the shrinkage temperature (Ta) cf TA-tanned leather, implying the presence of the synergistic effect between TA and Laponite nanoclay in the combination tanning process. The optimized tanning system, i.e. 20% TA combination tanned with 3% Laponite in one-bath for 3 hours al 25°C and final pH '-3.5, confers wet-white leathers with Ta above 89°C, and good storage stability. The introduction of Laponite nanoclay facilitates the fixation of TA in the wet-white leather. Scanning electron microscopie (SEM) results show that the combination tanned leathers exhibit fine isolated collagen fibre networks in cornparison with that of solo TA and solo Laponite tanned leather. The presence of Laponite nanoclay not only improves the mechanical strength of the resulting leather, but also gives an ultraviolet protection property. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURE : Materials - Solo TA or laponite tanning process - TA-laponite combination tanning process - Determination of shrinkage temperature - Determination of the uptake of TA - Scanning electron microscopic analysis of crust leathers - Physical properties examination - Anti-UV property measurements
- RESULTS AND DISCUSSION : Optimization of solo TA tannage - Optimization of TA-laponite nanoclay combination tannage - Scanning electron microscopic analysis of crust leathers - Physical strength properties of leathers - Anti-ultraviolet property of leathers |
| En ligne : |
https://drive.google.com/file/d/16MrKQSI3ImRz-Y0Mh4TMm9XBm4IHqnyA/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25558 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 100, N° 1 (01-02/2016) . - p. 25-30
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A novel approach for wet-white leather manufacture based on tannic acid-laponite nanoclay combination tannage in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 1 (01-02/2016)
