TY  - JOUR
AU  - Tomić, Nataša Z.
AU  - Saeedifar, Milad
AU  - Saleh, Mohamed Nasr
AU  - Marinković, Aleksandar
AU  - Zarouchas, Dimitrios
AU  - Teixeira de Freitas, Sofia
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5369
AB  - 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.
PB  - Elsevier Ltd
T2  - Polymer Testing
T1  - Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints
SP  - 107444
VL  - 106
DO  - 10.1016/j.polymertesting.2021.107444
ER  - 

@article{
author = "Tomić, Nataša Z. and Saeedifar, Milad and Saleh, Mohamed Nasr and Marinković, Aleksandar and Zarouchas, Dimitrios and Teixeira de Freitas, Sofia",
year = "2022",
abstract = "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.",
publisher = "Elsevier Ltd",
journal = "Polymer Testing",
title = "Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints",
pages = "107444",
volume = "106",
doi = "10.1016/j.polymertesting.2021.107444"
}

Tomić, N. Z., Saeedifar, M., Saleh, M. N., Marinković, A., Zarouchas, D.,& Teixeira de Freitas, S.. (2022). Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints. in Polymer Testing
Elsevier Ltd., 106, 107444.
https://doi.org/10.1016/j.polymertesting.2021.107444

Tomić NZ, Saeedifar M, Saleh MN, Marinković A, Zarouchas D, Teixeira de Freitas S. Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints. in Polymer Testing. 2022;106:107444.
doi:10.1016/j.polymertesting.2021.107444 .

Tomić, Nataša Z., Saeedifar, Milad, Saleh, Mohamed Nasr, Marinković, Aleksandar, Zarouchas, Dimitrios, Teixeira de Freitas, Sofia, "Synthesis and characterization of novel eco-epoxy adhesives based on the modified tannic acid for self-healing joints" in Polymer Testing, 106 (2022):107444,
https://doi.org/10.1016/j.polymertesting.2021.107444 . .

TY  - JOUR
AU  - Tomić, Nataša Z.
AU  - Saleh, Mohamed Nasr
AU  - Saeedifar, Milad
AU  - Marinković, Aleksandar
AU  - Teixeira de Freitas, Sofia
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5360
AB  - The aim of this paper is to study the self-healing capability of fractured Al joints bonded with novel eco-epoxide adhesives synthesized from a bio-renewable raw material (tannic acid – TA). Two synthesized eco-epoxy components based on TA, (A) glycidyl ether and (B) glycidyl phosphate ester of TA, were used as a replacement for the toxic epoxy component based on Bisphenol A. The effect of the eco-epoxy components on the self-healing capability was measured as a recovery of shear strength in a single lap joint (SLJ) test after complete failure, which was compared to the reference epoxy (R). The self-healing procedure was performed in an autoclave at 180 °C for 2 h and 2 bars. 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 SLJ. The measured shear stress of A and B adhesives in the SLJ had values in the range of 2.3–5.1 MPa. A fracture analysis showed complete adhesive failure for all the tested adhesives, which was not affected by the self-healing process. Out of all adhesives, only the A adhesive demonstrated the capability to heal. The recovery of the shear strength for adhesive A was higher than 50% of the virgin case. In addition, the AE analysis managed to capture a clear distinction between the signals for the virgin and the self-healed tests for adhesive A. Results obtained in this study highlighted the promising potential of using bio-based epoxy adhesives in structural adhesive bonding with the possibility of using self-healing in the recovery of the strength of such bonded joints.
PB  - Elsevier Ltd.
T2  - International Journal of Adhesion and Adhesives
T1  - Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap joint
SP  - 103013
VL  - 117
DO  - 10.1016/j.ijadhadh.2021.103013
ER  - 

@article{
author = "Tomić, Nataša Z. and Saleh, Mohamed Nasr and Saeedifar, Milad and Marinković, Aleksandar and Teixeira de Freitas, Sofia",
year = "2022",
abstract = "The aim of this paper is to study the self-healing capability of fractured Al joints bonded with novel eco-epoxide adhesives synthesized from a bio-renewable raw material (tannic acid – TA). Two synthesized eco-epoxy components based on TA, (A) glycidyl ether and (B) glycidyl phosphate ester of TA, were used as a replacement for the toxic epoxy component based on Bisphenol A. The effect of the eco-epoxy components on the self-healing capability was measured as a recovery of shear strength in a single lap joint (SLJ) test after complete failure, which was compared to the reference epoxy (R). The self-healing procedure was performed in an autoclave at 180 °C for 2 h and 2 bars. 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 SLJ. The measured shear stress of A and B adhesives in the SLJ had values in the range of 2.3–5.1 MPa. A fracture analysis showed complete adhesive failure for all the tested adhesives, which was not affected by the self-healing process. Out of all adhesives, only the A adhesive demonstrated the capability to heal. The recovery of the shear strength for adhesive A was higher than 50% of the virgin case. In addition, the AE analysis managed to capture a clear distinction between the signals for the virgin and the self-healed tests for adhesive A. Results obtained in this study highlighted the promising potential of using bio-based epoxy adhesives in structural adhesive bonding with the possibility of using self-healing in the recovery of the strength of such bonded joints.",
publisher = "Elsevier Ltd.",
journal = "International Journal of Adhesion and Adhesives",
title = "Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap joint",
pages = "103013",
volume = "117",
doi = "10.1016/j.ijadhadh.2021.103013"
}

Tomić, N. Z., Saleh, M. N., Saeedifar, M., Marinković, A.,& Teixeira de Freitas, S.. (2022). Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap joint. in International Journal of Adhesion and Adhesives
Elsevier Ltd.., 117, 103013.
https://doi.org/10.1016/j.ijadhadh.2021.103013

Tomić NZ, Saleh MN, Saeedifar M, Marinković A, Teixeira de Freitas S. Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap joint. in International Journal of Adhesion and Adhesives. 2022;117:103013.
doi:10.1016/j.ijadhadh.2021.103013 .

Tomić, Nataša Z., Saleh, Mohamed Nasr, Saeedifar, Milad, Marinković, Aleksandar, Teixeira de Freitas, Sofia, "Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap joint" in International Journal of Adhesion and Adhesives, 117 (2022):103013,
https://doi.org/10.1016/j.ijadhadh.2021.103013 . .