Titre : |
Re-utilisation of biomass resources : preparation and application of a bio-polymer retanning agent based on cattle hair hydrolysate |
Type de document : |
texte imprimé |
Auteurs : |
Luo Jianxun, Auteur ; Ma Hewei, Auteur ; Feng Yanjuan, Auteur |
Année de publication : |
2020 |
Article en page(s) : |
p. 39-43 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Catégories : |
Biomasse Cuirs et peaux de bovins Cuirs et peaux de moutons Formulation (Génie chimique) Poids moléculaires Poils -- Recyclage Polyaddition polymères vinyliques Retannage Wet-blue (tannage)Peau tannée au chrome (le chrome donne une couleur bleue)
|
Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
Résumé : |
In order to promote the development of clean production of leather-making and to re-cycle the cattle hair from a hair-saving process, the hair is hydrolysed and may in some circumstances find an application. But, because the cattle hair hydrolysate has a small molecular weight and poor properties in retanning of leather, it was modified with vinyl monomers by radical co-polymerisation using ammonium persulfate at 80°C for 3 hours to obtain a bio-polymer retanning agent. Comparing the viscosity and retanning properties of the bio-polymer retanning agent, the mol ratio of acrylic acid, acrylamide used was confirmed to be 4.0:1.0 and the consumption of acrylic acid, acrylamide is 80% based on the content of the hydrolysate. The structure of the bio-polymer retanning agent was characterised by FTIR. Application results of the bio-polymer retanning agent on the retanning of the shaved sheepskin wet-blue show that it has good retanning and filling properties. When the optimal consumption of the bio-polymer retanning agent is in the range of 6% and 8%, the retanned leather is full, more uniform than before and lacks any plastic feeling. |
Note de contenu : |
- EXPERIMENTAL PROCEDURE : Materials - Preparation of the bio-polymer retanning agents - Application of series of the bio-polymers and the selection of the best synthetic recipe - Molecular weight of the bio-polymer retanning agent and its structure determination - Application and the optimum amount of the bio-polymer retanning agent applied on the shaved sheepskin wet blue
- RESULTS AND DISCUSSION : Analysis of the optimised formulation of the biopolymer - Analysis of the molecular weight and the structure optimised formulation of the biop-polymer and its characteristics |
En ligne : |
https://drive.google.com/file/d/1DIJBWXlXhfTwVd6TZR-EUJyR_8FiWonZ/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33542 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 104, N° 1 (01-02/2020) . - p. 39-43