| Titre : |
Preparation of castor oil-based fatliquoring agent via a Pickering emulsion method for use in leather coating |
| Type de document : |
texte imprimé |
| Auteurs : |
Azam Sardari, Auteur ; Ali Asghar Sabbagh, Auteur ; Seyed Reza Ghaffarian, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 1765-1772 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cuir
Emulsions pickering
Huile de ricin et constituants
Produits de nourriture du cuir
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A castor oil-based fatliquoring agent for use in leather coating was prepared via Pickering emulsions stabilized by metal–organic frameworks (MOFs). The partially oxidized ZIF-8 (POZIF-8) nanoparticles were used as MOF in the presence of a castor oil-based dispersant. The results of the stability test showed that the presence of POZIF-8 nanoparticles leads to a stable oil/water emulsion with higher oil content than other nanoparticles, such as TiO2 and ZnO. The stabilized structure of the prepared fatliquoring agent was characterized by transmission electron microscopy (TEM). TEM image indicated that the castor oil either was surrounded or was encapsulated by MOF. The prepared fatliquoring agent was applied to the leather. Then, in order to prove the existence of POZIF-8 nanoparticles in collagen fibers, the cross section of the fatliquored leather was examined by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). These analyses revealed the good dispersion of POZIF-8 nanoparticles from grain to flesh side. The physical and mechanical properties of the fatliquored leather were compared with those of the control leather sample, which was fatliquored by a conventional agent. The results show that the prepared fatliquoring agent significantly improved mechanical properties, lightfastness, softness, and fullness of leather. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparatio of metal-organic framework ZIF-8 - Preparation of castor oil-based dispersant - Preparation of fatliquoring ageng - Process of leather fatliquoring - Characterization
- RESULTS AND DISCUSSION : SEM observation of POZIF-8 nanoparticles - XRD pattern of POZIF-8 nanoparticles - Sorption isotherms of POZIF-8 nanoparticles - Visual stability of POZIF-8-Fat50 - Zeta potential of POZIF-8-Fat 50 - TEM observation of POZIF-8-Fat 50 - EDS spectra of fatliquored leather - Fatliquored leather properties |
| DOI : |
10.1007/s11998-019-00234-1 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00234-1.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33430 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 6 (11/2019) . - p. 1765-1772
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