Self-healing capability of novel eco-epoxy adhesives based on the modified tannic acid on Al adherends tested in a single lap joint
Аутори
Tomić, Nataša Z.Saleh, Mohamed Nasr
Saeedifar, Milad
Marinković, Aleksandar
Teixeira de Freitas, Sofia
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 complet...e 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.
Кључне речи:
Acoustic emission / Adhesion / Eco-epoxy / Self-healing / Tannic acidИзвор:
International Journal of Adhesion and Adhesives, 2022, 117, 103013-Издавач:
- Elsevier Ltd.
Финансирање / пројекти:
- COST Action CA18120 (CERTBOND - https://certbond.eu/), supported by COST (European Cooperation in Science and Technology - https://www.cost.eu/).
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200287 (Иновациони центар Технолошко-металуршког факултета у Београду доо) (RS-200287)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-200135)
DOI: 10.1016/j.ijadhadh.2021.103013
ISSN: 0143-7496
WoS: 00083297950000
Scopus: 2-s2.0-85117255270
Колекције
Институција/група
Inovacioni centarTY - 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 . .