[article]
| Titre : |
Microemulsion solutions of acrylic copolymers for retanning applications on chrome tanned goat skins |
| Type de document : |
texte imprimé |
| Auteurs : |
G. Mallikajun, Auteur ; P. Saravanan, Auteur ; G. V. Ramana, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 215-224 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
The tercopolymer microemulsion (M.E.) solutions of methyl methacrylate (MMA), n-butyl acrylate (BA) and methacrylic acid (MAA) are prepared with four different compositions, by employing sodium lauryl sulphate (SLS) and n-pentanol (PA) as surfactant and co-surfactant, respectively, and by using potassium persulphate (KPS) as free radical initiator at a temperature of 70°C. The experimental products are employed in retanning chrome tanned goatskins along with the fatliquoring agent, Vernaminol liquor ASN. The offer of the experimental products are varried in the retanning experiments and the effects of these products on retanned goat skins are observed by measuring tensile strength, tearing strength and bursting strength. The experimental products show marked improvement in these properties. The scanning electron microscopic (SEM) studies are carried out on the retanned leathers retanned by application of microemulsion copolymer solutions prepared with 10 and 15 % of MAA, respectively, in the initial feeds of the microemulsion copolymerization experiments. The SEM analysis shows good filling and retanning effect with the experimental product containing the maximum MAA units in the copolymer under present study. The differential scanning calorimetric (DSC) studies of the retanned leathers retanned by employing the experimental products prepared with 10 and 15 percents of MAA units in the initial feeds of the microemulsion copolymerizations show the endothermic processes, respectively, at 105 and 118°C, which indicates higher shrinkage temperature by the application of the experimental product containing more MAA units (15%) in the copolymer and good retanning ability of the product. |
| En ligne : |
https://drive.google.com/file/d/1jdLAWCGVLQQw90zMGCvZPJvfq-PVPi5h/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4290 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVII, N° 6 (06/2002) . - p. 215-224
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