000133250 001__ 133250
000133250 005__ 20250923084426.0
000133250 0247_ $$2doi$$a10.3390/polym16050637
000133250 0248_ $$2sideral$$a138018
000133250 037__ $$aART-2024-138018
000133250 041__ $$aeng
000133250 100__ $$aPina-Vidal, Cristina$$uUniversidad de Zaragoza
000133250 245__ $$aMechanochemical encapsulation of caffeine in UiO-66 and UiO-66-NH2 to obtain polymeric composites by extrusion with recycled polyamide 6 or polylactic acid biopolymer
000133250 260__ $$c2024
000133250 5060_ $$aAccess copy available to the general public$$fUnrestricted
000133250 5203_ $$aThe development of capsules with additives that can be added to polymers during extrusion processing can lead to advances in the manufacturing of textile fabrics with improved and durable properties. In this work, caffeine (CAF), which has anti-cellulite properties, has been encapsulated by liquid-assisted milling in zirconium-based metal–organic frameworks (MOFs) with different textural properties and chemical functionalization: commercial UiO-66, UiO-66 synthesized without solvents, and UiO-66-NH2 synthesized in ethanol. The CAF@MOF capsules obtained through the grinding procedure have been added during the extrusion process to recycled polyamide 6 (PA6) and to a biopolymer based on polylactic acid (PLA) to obtain a load of approximately 2.5 wt% of caffeine. The materials have been characterized by various techniques (XRD, NMR, TGA, FTIR, nitrogen sorption, UV–vis, SEM, and TEM) that confirm the caffeine encapsulation, the preservation of caffeine during the extrusion process, and the good contact between the polymer and the MOF. Studies of the capsules and PA6 polymer+capsules composites have shown that release is slower when caffeine is encapsulated than when it is free, and the textural properties of UiO-66 influence the release more prominently than the NH2 group. However, an interaction is established between the biopolymer PLA and caffeine that delays the release of the additive.
000133250 536__ $$9info:eu-repo/grantAgreement/ES/DGA/LMP53-21$$9info:eu-repo/grantAgreement/ES/DGA/T68-23R
000133250 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000133250 590__ $$a4.9$$b2024
000133250 592__ $$a0.918$$b2024
000133250 591__ $$aPOLYMER SCIENCE$$b19 / 94 = 0.202$$c2024$$dQ1$$eT1
000133250 593__ $$aPolymers and Plastics$$c2024$$dQ1
000133250 593__ $$aChemistry (miscellaneous)$$c2024$$dQ1
000133250 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000133250 700__ $$aBerned-Samatán, Víctor
000133250 700__ $$aPiera, Elena
000133250 700__ $$aCaballero, Miguel Ángel
000133250 700__ $$0(orcid)0000-0002-4954-1188$$aTéllez, Carlos$$uUniversidad de Zaragoza
000133250 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000133250 773__ $$g16, 5 (2024), 637 [29 pp.]$$pPolymers (Basel)$$tPolymers$$x2073-4360
000133250 8564_ $$s2177054$$uhttps://zaguan.unizar.es/record/133250/files/texto_completo.pdf$$yVersión publicada
000133250 8564_ $$s2763127$$uhttps://zaguan.unizar.es/record/133250/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000133250 909CO $$ooai:zaguan.unizar.es:133250$$particulos$$pdriver
000133250 951__ $$a2025-09-22-14:39:30
000133250 980__ $$aARTICLE