| Titre : |
Effect of molecular weight of acrylic resin retanning agent on properties of leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Ying Song, Auteur ; Yunhang Zeng, Auteur ; Kunlu Xiao, Auteur ; Haopeng Wu, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 128-134 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cuirs et peaux -- Propriétés mécaniques
Poids moléculaires
Polyacryliques
Retannage
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
The effect of molecular weight of acrylic resin retanning agent on its penetration in leather and the properties of the retanned leather were investigated. After retanning chrome tanned leather by four fluorescent acrylic resins with different weight-average molecular weights (Mw) from 5,000 to 200,000, it was observed that the Mw of acrylic resins was not the main factor influencing their penetration in leather. In fact, the dosage of acrylic resin and the charge of leather were more important factors affecting penetration rate. Additionally, an increase in the Mw of acrylic resin led to an increase in the thickness of leather and a decrease in the softness of leather, which is mainly because the acrylic resins with higher Mw can enter larger gaps between collagen fibers and exhibit a better filling effect. Moreover, when acrylic resins were used together with other anionic retanning agents in retanning process, the penetration and distribution evenness of acrylic resins were remarkably improved, and meanwhile the acrylic resins with different molecular weights presented nearly the same effect on properties of resultant leathers. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation and analyses of AF-PAAs with different molecular weights - Effect of molecular weight of acrylic resin on its penetration in leather - Effect of molecular weight of acrylic resin on properties of leather
- RESULTS AND DISCUSSION : Effect of molecular weight of acrylic resin on its penetration in leather - Effect of molecular weight of acrylic resin on properties of leather |
| En ligne : |
https://drive.google.com/file/d/1g5WGNa9lR2nJVjlYcEiHMtSQelEihC7J/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28362 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 4 (04/2017) . - p. 128-134
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