| Titre : |
Nonionic short-chain fluorinated surfactants in the fatliquoring of chrome-tanned goat skin |
| Type de document : |
texte imprimé |
| Auteurs : |
Yichao Shen, Auteur ; Yong Jin, Auteur ; Shuangquan Lai, Auteur ; Liangjie Shi, Auteur ; Yutang Zhou, Auteur ; Rong Zhou, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 255-262 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Angle de contact
Caractérisation
Chromatographie sur gel
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de chèvres
Douceur (toucher)
Fourier, Spectroscopie infrarouge à transformée de
Liqueurs de tannage
Microscopie électronique à balayage
Surfactants fluorés
Tannage au chrome
Tension superficielle
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Surfactants as essential auxiliaries are used in almost all chemical processes in leather production. In this work, a series of nonionic short-chain fluorinated surfactants (Fn-Fn, where n = 2, 4, or 6) were successfully prepared and used as fatliquoring auxiliaries in the fatliquoring process of chrome-tanned goat skin. The chemical structure of these nonionic short-chain fluorinated surfactants was characterized by FTIR and the molecular weight was determined by GPC. The surface tension measurement results revealed that these three fluorinated surfactants showed excellent surface activities. The effect of type and dosage of Fn-Fn as well as fatliquoring temperature on fatliquoring properties of chrome-tanned goat skin were estimated by the softness and physical mechanical properties characteristic of resultant leather. The results revealed that the leather treated with 1 wt% F4-F4 at the fatliquoring temperature of 40oC showed the best overall performance, whose softness and physical mechanical properties were improved significantly. Moreover, the collagen fiber morphology and waterproof performance of leather treated with Fn-Fn were also investigated which showed that the addition of Fn-Fn in the fatliquoring process could promote the loosening of collagen fibers while effectively enhancing the water repellency of the leather surface. Therefore, such types of nonionic short-chain fluorinated surfactants are promising to be as desired fatliquoring auxiliaries in the leather industry. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Synthesis of nonionic short-chain fluorinated surfactants (Fn-Fn) - Fourier Transform Infrared Spectra (FTIR) - Gel permeation chromatography (GPC) - Surface tension measurement - Application of nonionic short-chain fluorinated surfactants - Analysis of leather properties
- RESULTS AND DISCUSSION : Synthesis and characterization of nonionic short-chain fluorinated surfactants (Fn-Fn) - Surface properties - Effect of type of Fn-Fn on the softness and physical mechanical properties of leather - Effect of dosage of Fn-Fn on the softness and physical mechanical properties of leather - Effect of fatliquoring temperature on softness and physical mechanical properties - SEM analysis of leather - Contact angle |
| DOI : |
https://doi.org/10.34314/jalca.v115i7.3833 |
| En ligne : |
https://drive.google.com/file/d/1jWVv4Z3q7D9OPMovPW4gKqVpNEXR8J3d/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34327 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXV, N° 7 (07/2020) . - p. 255-262
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Nonionic short-chain fluorinated surfactants in the fatliquoring of chrome-tanned goat skin in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 7 (07/2020)
