Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer

The development of capsules with additives that can be added to polymers during extrusion processing can lead to advances in the manufacturing of textile fabrics with improved and durable properties. In this work, caffeine (CAF), which has anti-cellulite properties, has been encapsulated by liquid-a...

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Autores: Pina-Vidal, Cristina, Berned-Samatán, Víctor, Piera, Elena, Caballero, Miguel Ángel, Téllez, Carlos
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Recursos:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:133250
Acesso em linha:http://zaguan.unizar.es/record/133250
Access Level:acceso abierto
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spelling Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymerPina-Vidal, CristinaBerned-Samatán, VíctorPiera, ElenaCaballero, Miguel ÁngelTéllez, CarlosThe development of capsules with additives that can be added to polymers during extrusion processing can lead to advances in the manufacturing of textile fabrics with improved and durable properties. In this work, caffeine (CAF), which has anti-cellulite properties, has been encapsulated by liquid-assisted milling in zirconium-based metal–organic frameworks (MOFs) with different textural properties and chemical functionalization: commercial UiO-66, UiO-66 synthesized without solvents, and UiO-66-NH2 synthesized in ethanol. The CAF@MOF capsules obtained through the grinding procedure have been added during the extrusion process to recycled polyamide 6 (PA6) and to a biopolymer based on polylactic acid (PLA) to obtain a load of approximately 2.5 wt% of caffeine. The materials have been characterized by various techniques (XRD, NMR, TGA, FTIR, nitrogen sorption, UV–vis, SEM, and TEM) that confirm the caffeine encapsulation, the preservation of caffeine during the extrusion process, and the good contact between the polymer and the MOF. Studies of the capsules and PA6 polymer+capsules composites have shown that release is slower when caffeine is encapsulated than when it is free, and the textural properties of UiO-66 influence the release more prominently than the NH2 group. However, an interaction is established between the biopolymer PLA and caffeine that delays the release of the additive.2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/133250reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/DGA/LMP53-21info:eu-repo/grantAgreement/ES/DGA/T68-23Rinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1332502026-05-29T13:59:51Z
dc.title.none.fl_str_mv Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
title Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
spellingShingle Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
Pina-Vidal, Cristina
title_short Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
title_full Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
title_fullStr Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
title_full_unstemmed Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
title_sort Mechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
dc.creator.none.fl_str_mv Pina-Vidal, Cristina
Berned-Samatán, Víctor
Piera, Elena
Caballero, Miguel Ángel
Téllez, Carlos
author Pina-Vidal, Cristina
author_facet Pina-Vidal, Cristina
Berned-Samatán, Víctor
Piera, Elena
Caballero, Miguel Ángel
Téllez, Carlos
author_role author
author2 Berned-Samatán, Víctor
Piera, Elena
Caballero, Miguel Ángel
Téllez, Carlos
author2_role author
author
author
author
description The development of capsules with additives that can be added to polymers during extrusion processing can lead to advances in the manufacturing of textile fabrics with improved and durable properties. In this work, caffeine (CAF), which has anti-cellulite properties, has been encapsulated by liquid-assisted milling in zirconium-based metal–organic frameworks (MOFs) with different textural properties and chemical functionalization: commercial UiO-66, UiO-66 synthesized without solvents, and UiO-66-NH2 synthesized in ethanol. The CAF@MOF capsules obtained through the grinding procedure have been added during the extrusion process to recycled polyamide 6 (PA6) and to a biopolymer based on polylactic acid (PLA) to obtain a load of approximately 2.5 wt% of caffeine. The materials have been characterized by various techniques (XRD, NMR, TGA, FTIR, nitrogen sorption, UV–vis, SEM, and TEM) that confirm the caffeine encapsulation, the preservation of caffeine during the extrusion process, and the good contact between the polymer and the MOF. Studies of the capsules and PA6 polymer+capsules composites have shown that release is slower when caffeine is encapsulated than when it is free, and the textural properties of UiO-66 influence the release more prominently than the NH2 group. However, an interaction is established between the biopolymer PLA and caffeine that delays the release of the additive.
publishDate 2024
dc.date.none.fl_str_mv 2024
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/133250
url http://zaguan.unizar.es/record/133250
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/DGA/LMP53-21
info:eu-repo/grantAgreement/ES/DGA/T68-23R
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
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