| Titre : |
Modification of faltiquored split by in-situ polymerization of n-butyl-methacrylate |
| Type de document : |
texte imprimé |
| Auteurs : |
Xu Weixing, Auteur ; Hui Zeng, Auteur ; Jianfei Zhou, Auteur ; Wang Ya-nan, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 72-77 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Composites
Composites -- Propriétés mécaniques
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Propriétés mécaniques
Hydrophobie
Polyméthacrylate de butyle
Pressage à chaud
Produits de nourriture du cuir
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
As a kind of by-product of leather manufacture, split generally exhibits weak mechanical strengths due to its loose weave structure of collagen fibres. The in-situ polymerization of acrylate monomers has proved to be an effective approach to reinforce the network structure of split in our previous work. However, the split has to be dehydrated by organic solvents so that hydrophobic monomers are able to penetrate into the fibre network and then polymerize in-situ. This process is complicated and may lead to the discharge of effluent containing organic solvents. In fact, traditional fatliquoring process imparts hydrophobicity to leather to some extent. In this study, chrome tanned split was firstly fatliquored and dried into trust. Then n-butyl-methacrylate(nBMA) was directly added into the crust split by drumming. After complete absorption of the monomer, Poly(n-butyl-methacrylate) (PnBMA)/split composite was easily prepared through hot pressing. The mechanical properties of the modified composite were measured to evaluate the reinforcing effect on split. The results suggested that the fatliquoring agents made of natural yolk provided the appropriate hydrophobicity for spin, and thus benefited the subsequent polymerization. The composite with the addition of 20% fatliquoring agent and 50% nBMA showed the best mechanical properties. Hot pressing conditions were optimized to be heated at 65°C for 60 minutes, The tensile strength and tear strength of the PnBMA/split composite prepared at optimum conditions are 37.25N/mm2 and 262.44N/mm, respectively. As a result, the reinforced split is expected to meet the requirement for producing most of leather products with high value-added. |
| Note de contenu : |
- MATERIAL AND METHODS : Materials - Preparation of PnBMA/split composites with different dosages of nBMA - Preparation of PnBMA/split composites with different hot pressing conditions - Characterisation of compatability between fatliquoring agent and nBMA monomers - Measurements and instruments
- RESULTS AND DISCUSSION : Effect of type and dosage of fatliquoring agents on mechanical properties of PnBMA/split composites - Effect of the dosage of nBMA on mechanical properties of PnBMA/split composites - Effect of heating process on mechanical properties of PnBMA/split composites |
| En ligne : |
https://drive.google.com/file/d/1ZGlQqlFevQzSV_A_w76q60lBXEbBrY01/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28513 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 2 (03-04/2017) . - p. 72-77
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Modification of faltiquored split by in-situ polymerization of n-butyl-methacrylate in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 2 (03-04/2017)
