Repositori institucional URV
| Autor/es de la URV: | De la Flor Lopez, Silvia / Montané Montané, Xavier / Serra Albet, Maria Angels / Telatin, Tommaso |
| Autor según el artículo: | Telatin, Tommaso; De la Flor, Silvia; Montane, Xavier; Serra, Angels |
| Direcció de correo del autor: | silvia.delaflor@urv.cat xavier.montane@urv.cat tommaso.telatin@urv.cat angels.serra@urv.cat |
| Identificador del autor: | 0000-0002-6851-1371 0000-0002-1426-239X 0000-0003-1387-0358 |
| Año de publicación de la revista: | 2024 |
| Tipo de publicación: | Journal Publications |
| Referencia de l'ítem segons les normes APA: | Telatin, Tommaso; De la Flor, Silvia; Montane, Xavier; Serra, Angels (2024). Chemically Degradable Vitrimers Based on Divanillin Imine Diepoxy Monomer and Aliphatic Diamines for Enhanced Carbon Fiber Composite Applications. Polymers, 16(19), 2754-. DOI: 10.3390/polym16192754 |
| Referencia al articulo segun fuente origial: | Polymers. 16 (19): 2754- |
| Resumen: | This study presents the development of a diglycidyl monomer containing two imine groups that can act as dynamic and reversible bonds. During the curing of the monomer with two different amine hardeners, we confirmed the formation of new imine groups due to the transamination reaction between the imine groups of the diepoxy monomer with the amine groups of the hardener. The effect of this structural change was observed in the stress relaxation behavior, resulting in the overlapping of two different relaxation modes. The analytical modelling was able to extract two distinct characteristic relaxation times using a double-element Maxwell model. A second characterization of the stress relaxation process by frequency sweep experiments was performed to corroborate the results obtained, confirming speedy stress relaxation. Acid-catalyzed hydrolysis was performed on the studied materials, demonstrating the complete degradation of the network. We finally confirmed that the synthesized diepoxy compound is suitable for preparing carbon-fiber-reinforced composite materials, demonstrating easy fiber impregnation, fast reshaping, and especially a total degradation of the polymer matrix that allows for the recovery of the carbon fibers in mild conditions. This epoxy-amine system is an excellent candidate for overcoming the traditional limits of thermosets in preparing fiber-reinforced composites. |
| DOI del artículo: | 10.3390/polym16192754 |
| Enlace a la fuente original: | https://www.mdpi.com/2073-4360/16/19/2754 |
| Versión del articulo depositado: | info:eu-repo/semantics/publishedVersion |
| Acceso a la licencia de uso: | https://creativecommons.org/licenses/by/3.0/es/ |
| Departamento: | Química Analítica i Química Orgànica |
| URL Documento de licencia: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
| Áreas temáticas: | Astronomia / física Biotecnología Chemistry (all) Chemistry (miscellaneous) Ciências biológicas ii Engenharias ii Farmacia General chemistry Odontología Polymer science Polymers and plastics |
| Palabras clave: | Carbon fiber composite Carbon fiber composites Chemical degradation Creep resistance Density Elasticity Epoxy vitrimers Ful Polyimine-epoxy vitrimers Polyimine–epoxy vitrimers |
| Entidad: | Universitat Rovira i Virgili |
| Fecha de alta del registro: | 2024-10-26 |
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| DocumentPrincipal | DocumentPrincipal | application/pdf |
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