| Titre : |
Performance evaluation of hybrid formulations consisting of antioxidant and crosslinking agents for the treatment of acid degradation in historic vegetable-tanned leathers |
| Type de document : |
texte imprimé |
| Auteurs : |
Alireza Koochakzaei, Auteur ; Shadpour Mallakpour, Auteur ; Hossein Ahmadi, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 330-337 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Acidité
Antioxydants
Antiquités (objets anciens) -- Analyse
Antiquités (objets anciens) -- Conservation et restauration
Colorimétrie
Cuirs et peaux -- Détérioration
Cuirs et peaux -- Entretien et réparations
Essais accélérés (technologie)
Formulation (Génie chimique)
pH -- Mesure
Réticulants
Spectroscopie de réflectance
Tannage végétal
Température de retrait
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
This study investigated the performance of several new formulations for the treatment of acid degradation in historic leathers made with condensed tannins. This investigation was performed for four formulations consisting of collagen-stabilizing agents (oxazolidine E, resorcinol, nano alumina, and nano silica) and an antioxidant agent (Songnox 1010) in the acidic environment. The compounds were applied to 19th-century leathers with a brush. The properties of the leathers before and after treatment and accelerated aging were determined by measuring pH, shrinkage temperature, and color and conducting ATR-FTIR and FORS. For accelerated aging, the samples were exposed to an atmosphere with 95ppm SO2, 40°C, and 51% relative humidity for 14 days. The results showed that all of the tested formulations slowed down the acid degradation process. The combined use of collagen stabilizing agents provided good treatment properties and adding Songnox 1010 antioxidant agent to this combination further enhanced the effect of treatment. Among the tested formulations, the one containing oxazolidine+resorcinol+nano alumina+S1010 provided the best properties for controlling acid degradation. |
| Note de contenu : |
- Samples preparation and treatment
- Accelerated aging - ATR-FTIR spectroscopy
- Colorimetry
- Fiber-Optics Reflectance Spectroscopy (FORS)
- Shrinkage temperature
- pH measurement
- Table 1 : Formulation of hybrid treatments applied on leathers |
| DOI : |
https://doi.org/10.34314/jalca.v117i8.5983 |
| En ligne : |
https://drive.google.com/file/d/1Ye-Oj-_MztdSjEzgxIUgQ7hz20gZA6sW/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37825 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVII, N° 8 (08/2022) . - p. 330-337
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Performance evaluation of hybrid formulations consisting of antioxidant and crosslinking agents for the treatment of acid degradation in historic vegetable-tanned leathers in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 8 (08/2022)
