| Titre : |
Visualization and quantification of penetration/mass transfer of acrylic resin retanning agent in leather using fluorescent tracing technique |
| Type de document : |
texte imprimé |
| Auteurs : |
Yunhang Zeng, Auteur ; Ying Song, Auteur ; Jing Li, Auteur ; Wenhua Zhang, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 398-405 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Acide polyacrylique
Cuirs et peaux -- Analyse
Retannage
Spectroscopie de fluorescence
Transfert de masse
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Acrylic resin is a widely used retanning agent in leather processing, and its retanning effectiveness is closely related to its penetration depth and filling parts in leather. But acrylic resin in leather cannot be visualized or quantified, and thus its application mainly depends on tanners’ experience. In this study, 5-aminofluorescein-labeled poly(acrylic acid) (AF-PAA), as a model of fluorescent acrylic resins, was synthesized using a phase-transfer reaction and then purified using Sephadex gel filtration. AF-PAA was applied to retanning process and could be well visualized and quantified in retanned leathers using fluorescence microscopy and Image J software. Looser collagen fibers, increasing amount of acrylic resin or retanning together with some anionic retanning agents could enhance penetration/mass transfer of acrylic resin in leather. The fluorescent tracing technique is useful to investigate the mass transfer and reaction mechanism of acrylic resin in leather processing. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of AF-labeled PAA (AF-PAA) - Analysis of fluorescence emission spectra - Determination of AF-PAA stability - Analysis of molecular weight - Observation of AF-PAA in retanned leather
- RESULTS AND DISCUSSION : Characteristics of AF-PAA - Visualization and quantification of AF-PAA in retanned leather |
| En ligne : |
https://drive.google.com/file/d/1fSzpJ33m0_NsQCPVQc83DO_36ke--QHD/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27156 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXI, N° 11 (11/2016) . - p. 398-405
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Visualization and quantification of penetration/mass transfer of acrylic resin retanning agent in leather using fluorescent tracing technique in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 11 (11/2016)
