Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints

The aim of this research was to investigate the self-healing potential of damaged Al joints when bonded using novel eco-epoxide adhesives derived from tannic acid (TA). Two eco-epoxy components based on TA, (A) glycidyl ether and (B) glycidyl phosphate ester of TA, were produced. The effect of the e...

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Autores principales: Nataša Z. Tomić, Milad Saeedifar, Mohamed Nasr Saleh, Aleksandar Marinković, Dimitrios Zarouchas, Sofia Teixeira de Freitas
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Publicado: Elsevier 2022
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spelling oai:doaj.org-article:37911bb09bd6434d8c59f44b33c984862021-12-04T04:31:59ZSynthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints0142-941810.1016/j.polymertesting.2021.107444https://doaj.org/article/37911bb09bd6434d8c59f44b33c984862022-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941821003871https://doaj.org/toc/0142-9418The aim of this research was to investigate the self-healing potential of damaged Al joints when bonded using novel eco-epoxide adhesives derived from tannic acid (TA). Two eco-epoxy components based on TA, (A) glycidyl ether and (B) glycidyl phosphate ester of TA, were produced. The effect of the eco-epoxy components on the self-healing ability was assessed in terms of the energy dissipation recovery after partial failure in a double cantilever beam (DCB) test, which was compared to the reference epoxy (R). The self-healing process required 2 h and 2 bars in an autoclave at 180 °C. Techniques such as DSC, FTIR and DMA showed residual activity and potential self-healing capability of the used adhesives. A combination of two monitoring techniques, Digital Image Correlation (DIC) and Acoustic Emission (AE), was used to monitor the strain distribution and damage propagation in the DCB specimens. The healing index for adhesives R, B and A was found to be 8.9%, 3.0%, and 82.5% respectively. The findings of this work highlighted the potential of using bio-based epoxy adhesives in structural adhesive bonding, as well as the prospect of utilizing their self-healing ability to restore the strength of such bonded parts.Nataša Z. TomićMilad SaeedifarMohamed Nasr SalehAleksandar MarinkovićDimitrios ZarouchasSofia Teixeira de FreitasElsevierarticleSelf-healingAdhesionEco-epoxyTannic acidAcoustic emissionPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 106, Iss , Pp 107444- (2022)
institution DOAJ
collection DOAJ
language EN
topic Self-healing
Adhesion
Eco-epoxy
Tannic acid
Acoustic emission
Polymers and polymer manufacture
TP1080-1185
spellingShingle Self-healing
Adhesion
Eco-epoxy
Tannic acid
Acoustic emission
Polymers and polymer manufacture
TP1080-1185
Nataša Z. Tomić
Milad Saeedifar
Mohamed Nasr Saleh
Aleksandar Marinković
Dimitrios Zarouchas
Sofia Teixeira de Freitas
Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
description The aim of this research was to investigate the self-healing potential of damaged Al joints when bonded using novel eco-epoxide adhesives derived from tannic acid (TA). Two eco-epoxy components based on TA, (A) glycidyl ether and (B) glycidyl phosphate ester of TA, were produced. The effect of the eco-epoxy components on the self-healing ability was assessed in terms of the energy dissipation recovery after partial failure in a double cantilever beam (DCB) test, which was compared to the reference epoxy (R). The self-healing process required 2 h and 2 bars in an autoclave at 180 °C. Techniques such as DSC, FTIR and DMA showed residual activity and potential self-healing capability of the used adhesives. A combination of two monitoring techniques, Digital Image Correlation (DIC) and Acoustic Emission (AE), was used to monitor the strain distribution and damage propagation in the DCB specimens. The healing index for adhesives R, B and A was found to be 8.9%, 3.0%, and 82.5% respectively. The findings of this work highlighted the potential of using bio-based epoxy adhesives in structural adhesive bonding, as well as the prospect of utilizing their self-healing ability to restore the strength of such bonded parts.
format article
author Nataša Z. Tomić
Milad Saeedifar
Mohamed Nasr Saleh
Aleksandar Marinković
Dimitrios Zarouchas
Sofia Teixeira de Freitas
author_facet Nataša Z. Tomić
Milad Saeedifar
Mohamed Nasr Saleh
Aleksandar Marinković
Dimitrios Zarouchas
Sofia Teixeira de Freitas
author_sort Nataša Z. Tomić
title Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
title_short Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
title_full Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
title_fullStr Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
title_full_unstemmed Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
title_sort synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
publisher Elsevier
publishDate 2022
url https://doaj.org/article/37911bb09bd6434d8c59f44b33c98486
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