| Titre : |
Hight exhaust chrome tanning using novel copolymer for eco-friendly leather processing |
| Type de document : |
texte imprimé |
| Auteurs : |
James Kanagaraj, Auteur ; B. S. R. Reddy, Auteur ; Geetha Baskar, Auteur ; Sanjeev Gupta, Auteur |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 36 - 43 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
The novel nanoparticle dispersion (NPD) of a high molecular weight copolymer in aqueous medium was investigated for its application as an aid to chrome exhaustion. The copolymer chain is made up of two types of monomers, viz. an acrylic ester and an amino acid derivative. The copolymer was synthesized using microemulsion polymerization methods. The monomer from the amino acid derivative provides conditions for microemulsion polymerization reaction in aqueous medium and facilitates formation of NPD of the copolymer in water. The developed NPD exhibits narrow particle size distribution with particle size at 40nm. The NPD is a free flowing liquid with flow characteristics almost similar to water, as shown from its low relative viscosity of 1.08 at 25°C. The zeta potential of NPD at -32.9mV demonstrates anionic nature of the copolymer particle and this may be provided from amino acid derived monomer. The NPD was tested in chrome tanning as an exhaustion aid. The NPD was used in chrome tanning experiment in the pilot level scale and the exhaustion and leather properties were found. From elaborate investigations, it is demonstrated that NPD could perform as a high exhaust chrome aid to provide 94% exhaustion of chromium when used during chrome tanning operation. The effect of NPD on the physiochemical characteristics of leather is presented. |
| En ligne : |
https://drive.google.com/file/d/1Jsw2q2a8-noWYzkjNDEcDa2ZG8hJdC4k/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2583 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 1 (01/2008) . - p. 36 - 43
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Hight exhaust chrome tanning using novel copolymer for eco-friendly leather processing in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 1 (01/2008)
