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Encapsulation of α-tocopheryl acetate into zeolite Y for textile application / Eduardo Perez in Industrial & engineering chemistry research, Vol. 49 N° 18 (Septembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 18 (Septembre 2010) . - pp. 8495-8500 Titre : Encapsulation of α-tocopheryl acetate into zeolite Y for textile application Type de document : texte imprimé Auteurs : Eduardo Perez, Auteur ; Luis Martín, Auteur ; Cesar Rubio, Auteur Année de publication : 2010 Article en page(s) : pp. 8495-8500 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Textile  industry  Zeolite  Encapsulation Résumé : A useful encapsulation methodology has been developed to fabricate α-tocopheryl acctate-zeolite Y microcapsules. These new microcapsules have been applied to obtain special textile polyamide fibers. The presence of α-tocopheryl acetate in both microcapsules and special fibers has been qualitatively and quantitatively determined using various techniques such as thermogravimetric analysis (TGA), infrared spectroscopy (FTIR), and high performance liquid chromatography (HPLC). Two different techniques to extract the α-tocopheryl acetate encapsulated in both microcapsules and special fibers have been compared: liquid-liquid extraction, that gives the best results under the studied conditions, and supercritical CO2 extraction, which is useful when there are mass trinsfer limitations as in the case of the special fibers. Mechanical properties of the fiber do not significantly change when they are fabricated with zeolite Y microcapsules. Finally, fabrics knitted with yams of α-tocopheryl acetate-zeolite Y microcapsules state a significant presence of the additive after 100 washing machine cycles (30 °C, neutral soap). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23213985 [article] Encapsulation of α-tocopheryl acetate into zeolite Y for textile application [texte imprimé] / Eduardo Perez, Auteur ; Luis Martín, Auteur ; Cesar Rubio, Auteur . - 2010 . - pp. 8495-8500. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 18 (Septembre 2010) . - pp. 8495-8500 Mots-clés : Textile  industry  Zeolite  Encapsulation Résumé : A useful encapsulation methodology has been developed to fabricate α-tocopheryl acctate-zeolite Y microcapsules. These new microcapsules have been applied to obtain special textile polyamide fibers. The presence of α-tocopheryl acetate in both microcapsules and special fibers has been qualitatively and quantitatively determined using various techniques such as thermogravimetric analysis (TGA), infrared spectroscopy (FTIR), and high performance liquid chromatography (HPLC). Two different techniques to extract the α-tocopheryl acetate encapsulated in both microcapsules and special fibers have been compared: liquid-liquid extraction, that gives the best results under the studied conditions, and supercritical CO2 extraction, which is useful when there are mass trinsfer limitations as in the case of the special fibers. Mechanical properties of the fiber do not significantly change when they are fabricated with zeolite Y microcapsules. Finally, fabrics knitted with yams of α-tocopheryl acetate-zeolite Y microcapsules state a significant presence of the additive after 100 washing machine cycles (30 °C, neutral soap). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23213985