| Titre : |
Dialdehyde alginic acid - A novel biopolymeric tanning agent |
| Type de document : |
texte imprimé |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 353-361 |
| Note générale : |
p. 353-361 |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
In the present investigation, a new class of tanning agent produced from a renewable biopolymer, alginic acid is reported. Dialdehyde alginic acid (DAA) of different oxidation levels was prepared from alginic acid. DAA at different degree of oxidation was found to be soluble in water. Solubility increased with increase in % oxidized DAA. Treatment of skins with DAA and the effect of the shrinkage temperature of leathers at different oxidation levels of alginic acid were studied. Leathers with 80oC shrinkage temperature have been obtained by tanning at pH 8. The increase in shrinkage temperature was found to be dependent on the degree of oxidation of alginic acid. The scanning electron microscopy of the DAA tanned leathers had revealed coating of the fiber bundles. The fullness of the DAA tanned leathers was found to be relatively better than the chrome tanned leathers. The physical strength characteristics of the DAA tanned leathers are found to be comparable to that of conventional chrome tanned leathers. |
| En ligne : |
https://drive.google.com/file/d/1i0mNAKa-bQ7GkY5zDblFMePMYTC1hHk0/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3321 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 11 (11/2007) . - p. 353-361
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Dialdehyde alginic acid - A novel biopolymeric tanning agent in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 11 (11/2007)
