Articles producció científica> Enginyeria Mecànica

Rheological and mechanical characterization of dual-curing thiol-acrylate-epoxy thermosets for advanced applications

  • Dades identificatives

    Identificador: imarina:5671696
    Autors:
    Russo CFernández-Francos XDe la Flor S
    Resum:
    © 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.
  • Altres:

    Autor segons l'article: Russo C; Fernández-Francos X; De la Flor S
    Departament: Enginyeria Mecànica
    e-ISSN: 2073-4360
    Autor/s de la URV: De la Flor Lopez, Silvia / Fernández Francos, Xavier
    Paraules clau: Thiol Systems Shape-memory polymer Polymer networks Kinetics Epoxy Dual-curing Adhesive Acrylate shape-memory polymer epoxy dual-curing adhesive acrylate
    Resum: © 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.
    Àrees temàtiques: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
    Accès a la llicència d'ús: thttps://creativecommons.org/licenses/by/3.0/es/
    ISSN: 20734360
    Adreça de correu electrònic de l'autor: xavier.fernandez@urv.cat silvia.delaflor@urv.cat
    Identificador de l'autor: 0000-0002-3492-2922 0000-0002-6851-1371
    Data d'alta del registre: 2023-02-18
    Volum de revista: 11
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://www.mdpi.com/2073-4360/11/6/997
    Referència a l'article segons font original: Polymers. 11 (6):
    Referència 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
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.3390/polym11060997
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2019
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Chemistry (Miscellaneous),Polymer Science,Polymers and Plastics
    Thiol
    Systems
    Shape-memory polymer
    Polymer networks
    Kinetics
    Epoxy
    Dual-curing
    Adhesive
    Acrylate
    shape-memory polymer
    epoxy
    dual-curing
    adhesive
    acrylate
    Polymers and plastics
    Polymer science
    Odontología
    General chemistry
    Farmacia
    Engenharias ii
    Ciências biológicas ii
    Chemistry (miscellaneous)
    Chemistry (all)
    Biotecnología
    Astronomia / física
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