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Polymers
Volume 15
Issue 7
10.3390/polym15071607
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Orduna, L.
Otaegi, I.
Aranburu, N.
Guerrica-Echevarr铆a, G.
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Orduna, L.
Otaegi, I.
Aranburu, N.
Guerrica-Echevarr铆a, G.
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Orduna, L.
Otaegi, I.
Aranburu, N.
Guerrica-Echevarr铆a, G.
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Find support for a specific problem in the support section of our website. Get Support FeedbackPlease let us know what you think of our products and services. Give Feedback InformationVisit our dedicated information section to learn more about MDPI. Get Information clear JSmol Viewer clear first_page settings Order Article Reprints Font Type: Arial Georgia Verdana Font Size: Aa Aa Aa Line Spacing: Column Width: Background: This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids by Lidia Orduna , Itziar Otaegi, Nora Aranburu and Gonzalo Guerrica-Echevarr铆a *
POLYMAT and Department of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country (UPV/EHU), Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastian, Spain
*
Author to whom correspondence should be addressed.
Polymers 2023, 15(7), 1607; https://doi.org/10.3390/polym15071607 (registering DOI)
Received: 15 February 2023
/
Revised: 14 March 2023
/
Accepted: 16 March 2023
/
Published: 23 March 2023
(This article belongs to the Special Issue Advanced Epoxy-Based Materials IV)
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Abstract
Electrically-conductive epoxy nanocomposites (NCs) with improved mechanical and adhesive properties were achieved through the combined addition of poly(ε-caprolactone) (PCL) and carbon nanotubes (CNTs). Three different ionic liquids (ILs) were used as dual role agents, i.e., as both curing and dispersing agents. Regardless of the IL used, the epoxy/PCL matrix of the NCs showed a single-phase behaviour and similar glass transition (Tg) and crosslinking density (νe) values to the unfilled epoxy/PCL/IL systems. Although the CNTs were more poorly dispersed in the epoxy/PCL/CNT/IL NCs than in the reference epoxy/CNT/IL NCs, which led to slightly lower electrical conductivity values, the epoxy/PCL/CNT/IL NCs were still semiconductive. Their low-strain mechanical properties (i.e., flexural modulus and flexural strength) were similar or better than those of the reference epoxy/IL systems and their high-strain mechanical properties (i.e., deformation at break and impact strength) were significantly better. In addition, the positive effects of the PCL and the CNTs on the adhesive properties of the epoxy/IL system were combined. The substitution of ILs for traditional amine-based curing agents and biodegradable PCL for part of the epoxy resin represents an important advance on the road towards greater sustainability.
Keywords:
epoxy resin; ionic liquid; nanocomposite; mechanical properties; electrical conductivity; lap shear strength
epoxy resin; ionic liquid; nanocomposite; mechanical properties; electrical conductivity; lap shear strength
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Orduna, L.; Otaegi, I.; Aranburu, N.; Guerrica-Echevarr铆a, G. Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids. Polymers 2023, 15, 1607. https://doi.org/10.3390/polym15071607 AMA StyleOrduna L, Otaegi I, Aranburu N, Guerrica-Echevarr铆a G. Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids. Polymers. 2023; 15(7):1607. https://doi.org/10.3390/polym15071607 Chicago/Turabian StyleOrduna, Lidia, Itziar Otaegi, Nora Aranburu, and Gonzalo Guerrica-Echevarr铆a. 2023. "Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids" Polymers 15, no. 7: 1607. https://doi.org/10.3390/polym15071607 Find Other Styles Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here. Article Metrics No No Article Access Statistics For more information on the journal statistics, click here. Multiple requests from the same IP address are counted as one view. Supplementary Material Supplementary File 1:ZIP-Document (ZIP, 75 KiB) clear Zoom | Orient | As Lines | As Sticks | As Cartoon | As Surface | Previous Scene | Next Scene Cite Export citation file: BibTeX | EndNote | RIS MDPI and ACS StyleOrduna, L.; Otaegi, I.; Aranburu, N.; Guerrica-Echevarr铆a, G. Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids. Polymers 2023, 15, 1607. https://doi.org/10.3390/polym15071607 AMA StyleOrduna L, Otaegi I, Aranburu N, Guerrica-Echevarr铆a G. Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids. Polymers. 2023; 15(7):1607. https://doi.org/10.3390/polym15071607 Chicago/Turabian StyleOrduna, Lidia, Itziar Otaegi, Nora Aranburu, and Gonzalo Guerrica-Echevarr铆a. 2023. "Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids" Polymers 15, no. 7: 1607. https://doi.org/10.3390/polym15071607 Find Other Styles Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here. clear Polymers, EISSN 2073-4360, Published by MDPI RSS Content Alert Further Information Article Processing Charges Pay an Invoice Open Access Policy Contact MDPI Jobs at MDPI Guidelines For Authors For Reviewers For Editors For Librarians For Publishers For Societies For Conference Organizers MDPI Initiatives Sciforum MDPI Books Preprints.org Scilit SciProfiles Encyclopedia JAMS Proceedings Series Follow MDPI LinkedIn Facebook Twitter
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