Autor según el artículo: Russo C; Fernández-Francos X; De la Flor S

Departamento: Enginyeria Mecànica

e-ISSN: 2073-4360

Autor/es de la URV: De la Flor Lopez, Silvia / Fernández Francos, Xavier

Palabras clave: Thiol Systems Shape-memory polymer Polymer networks Kinetics Epoxy Dual-curing Adhesive Acrylate shape-memory polymer epoxy dual-curing adhesive acrylate

Resumen: © 2019 by the authors. Mechanical and rheological properties of novel dual-curing system based on sequential thiol-acrylate and thiol-epoxy reactions are studied with the aim of addressing the obtained materials to suitable advanced applications. The crosslinking process is studied by rheological analysis in order to determine conversion at gelation and the critical ratio. These parameters are used to discuss the intermediate material structure for each acrylate proportion and their possible application in the context of dual-curing and multi-step processing scenarios. Results from dynamo-mechanical analysis and mechanical testing demonstrate the high versatility materials under investigation and revealed a wide range of achievable final properties by simply varying the proportion between acrylate and thiol group. The intermediate stability between curing stages has been analysed in terms of their thermal and mechanical properties, showing that these materials can be stored at different temperatures for a relevant amount of time without experiencing significant effects on the processability. Experimental tests were made to visually demonstrate the versatility of these materials. Qualitative tests on the obtained materials confirm the possibility of obtaining complex shaped samples and highlight interesting shape-memory and adhesive properties.

Áreas temáticas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física

Acceso a la licencia de uso: thttps://creativecommons.org/licenses/by/3.0/es/

ISSN: 20734360

Direcció de correo del autor: xavier.fernandez@urv.cat silvia.delaflor@urv.cat

Identificador del autor: 0000-0002-3492-2922 0000-0002-6851-1371

Fecha de alta del registro: 2023-02-18

Volumen de revista: 11

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/2073-4360/11/6/997

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Polymers. 11 (6):

Referencia de l'ítem segons les normes APA: Russo C; Fernández-Francos X; De la Flor S (2019). Rheological and mechanical characterization of dual-curing thiol-acrylate-epoxy thermosets for advanced applications. Polymers, 11(6), -. DOI: 10.3390/polym11060997

DOI del artículo: 10.3390/polym11060997

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2019

Tipo de publicación: Journal Publications