| Titre : |
Investigation of the synthesis of a novel glycidyl ether-amine epoxy tanning agents and their tanning performance |
| Type de document : |
texte imprimé |
| Auteurs : |
Xiaoyan Pang, Auteur ; Zhiwen Ding, Auteur ; Wei Ding, Auteur ; Xiao Xiao, Auteur ; Xuepin Liao, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 228-239 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Agents de tannage
Caractérisation
Composés organiques -- Synthèse
Epoxydes
Evaluation
Poids moléculaires
Rhéologie
Structure chimique
Tannage
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Isophorone diamine (IPDA) and epichlorohydrin (ECH) were used to fabricate the epoxy tanning agents, and polyalcohol compounds (glycerol, polyethylene glycol, ethylene glycol) were employed to introduce the ether bonds into the epoxy tanning agents to improve their compatibility with water. The prepared epoxy tanning agents were named IGE, IPE and IEE for the introduction of glycerol, polyethylene glycol and ethylene glycol, respectively. FT-IR and 1H NMR analysis indicated that epoxy groups, ether bonds and hexatomic rings were successfully introduced into IGE, IPE and IEE. The tanning performances of the epoxy tanning agents were further evaluated in water, ethanol-50 (50% of ethanol in water) and ethanol-95 (95% of ethanol in water) medium, which suggested that ethanol-50 was the most favorable one for the epoxy tanning agents. The IGE tanned leather exhibited the highest shrinkage temperature of 83ºC in ethanol-50 due to its low viscosity, high epoxy value and wide molecular dispersion. Morphology observation indicated that the IGE tanned leather exhibited better dispersion of fiber network than that of IPE and IEE tanned leathers. These results illustrated that IGE was an appropriate tanning agent in water-ethanol medium, which could be considered as a candidate for the organic tanning agents. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of epoxide tanning agents - Characterization of epoxide tanning agents Fourier Transform Infrared (FT-IR) spectriscopy - Molecular weight determination - H NMR analysis - Determination of viscosity - Tanning trials - Evaluation of tanning performance shrinkage temperature - Absorption rate of tanning agent - Physical properties - Scanning Electron Microscope (SEM) observation
- RESULTS AND DISCUSSION : Chemical structure analysis - Molecular weight and viscosity of as prepared epoxides - Evaluation of the tanning performance of prepared epoxides - Optimization of IGE tanning conditions - Morphology observation of tanned leather - Physical properties |
| En ligne : |
https://drive.google.com/file/d/1ChD8Sr0kJz6k2u-XCTG2lhvZxRPOOdZC/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32655 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIV, N° 6 (06/2019) . - p. 228-239
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Investigation of the synthesis of a novel glycidyl ether-amine epoxy tanning agents and their tanning performance in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 6 (06/2019)
