Study of Melamine-Formaldehyde/Phase Change Material Microcapsules for the Preparation of Polymer Films by Extrusion

García-Viñuales, S. ; Rubio Hortells, C. ; Martínez-Izquierdo, L. (Universidad de Zaragoza) ; Zornoza Encabo , B. (Universidad de Zaragoza) ; Piera, E. ; Caballero, M. Á. ; Téllez Ariso, C. (Universidad de Zaragoza)

Resumen: n-Eicosane-melamine formaldehyde microcapsules of an average size of 1.1 µm and latent heat of fusion of 146.2 ± 5.3 J/g have been prepared. They have been characterized by scanning electron microscopy, FTIR spectroscopy, calorimetric techniques, and thermogravimetric analyses. Under processing conditions, the microcapsules apparently preserved their properties, also maintaining their n-eicosane loading and heat storage capacity under washing conditions (water with detergent at 60¿C). The microcapsules synthesis has been scaled up for the fabrication of functional films by extrusion. For that, polymer films containing 10 wt.% of microcapsules were prepared at a pilot plant level. In those films, even though a fraction of the n-eicosane loading was lost during the extrusion process, the microcapsules showed good compatibility within the polyamide. The percentage of PCM in the polyamide 6 films was estimated by TGA, verifying also the heat storage capacity predicted by DSC (2.6 ± 0.7 J/g). © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Idioma: Inglés

DOI: 10.3390/membranes12030266

Año: 2022

Publicado en: Membranes 12, 3 (2022), 266 [13 pp]
ISSN: 2077-0375

Factor impacto JCR: 4.2 (2022)

Categ. JCR: CHEMISTRY, PHYSICAL rank: 70 / 161 = 0.435 (2022) - Q2 - T2
Categ. JCR: POLYMER SCIENCE rank: 25 / 85 = 0.294 (2022) - Q2 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 137 / 343 = 0.399 (2022) - Q2 - T2
Categ. JCR: ENGINEERING, CHEMICAL rank: 48 / 141 = 0.34 (2022) - Q2 - T2

Factor impacto CITESCORE: 4.4 - Chemical Engineering (Q2)

Factor impacto SCIMAGO: 0.489 - Chemical Engineering (miscellaneous) (Q2) - Process Chemistry and Technology (Q3) - Filtration and Separation (Q3)

Financiación: info:eu-repo/grantAgreement/ES/MCIN/AEI/10.13039/501100011033
Financiación: info:eu-repo/grantAgreement/ES/MINECO/RTC-2015-3503-5

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)