The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded joints
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Two synthesized eco-epoxy components based on TA: (A) glycidyl ether and (B) glycidyl phosphate ester, are used, as a replacement for the Bisphenol A (BPA) based epoxy component, for bonding aluminum (Al) and carbon fiber reinforced polymer (CFRP). Their effect on the mode I fracture toughness (G(I)) is evaluated by Double Cantilever Beam (DCB) testing while using Digital Image Correlation (DIC) for in-situ crack tip monitoring. Compared to the reference adhesive, an improvement of (G(I)) of Al (43%) and CFRP (100%) is obtained when using adhesive B. Moreover, regardless of the adherend material, a stick-slip pattern of crack growth is observed. Weak adhesion of the reference adhesive leads to an adhesive failure vs. a cohesive-adhesive failure in the case of adhesive B. On the contrary, the modification of adhesive A has an adverse effect on the G(I) of Al (-33%) and CFRP (-78%) as opposed to their reference counterparts.
Кључне речи:
Eco-epoxy / Adhesive / Double cantilever beam (DCB) / Digital image correlation (DIC) / Mode I fracture ToughnessИзвор:
Polymer Testing, 2021, 96Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
DOI: 10.1016/j.polymertesting.2021.107122
ISSN: 0142-9418
WoS: 000663792300044
Scopus: 2-s2.0-85101017329
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Институција/група
Inovacioni centarTY - JOUR AU - Saleh, Mohamed Nasr AU - Tomić, Nataša AU - Marinković, Aleksandar AU - de Freitas, Sofia Teixeira PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4922 AB - Two synthesized eco-epoxy components based on TA: (A) glycidyl ether and (B) glycidyl phosphate ester, are used, as a replacement for the Bisphenol A (BPA) based epoxy component, for bonding aluminum (Al) and carbon fiber reinforced polymer (CFRP). Their effect on the mode I fracture toughness (G(I)) is evaluated by Double Cantilever Beam (DCB) testing while using Digital Image Correlation (DIC) for in-situ crack tip monitoring. Compared to the reference adhesive, an improvement of (G(I)) of Al (43%) and CFRP (100%) is obtained when using adhesive B. Moreover, regardless of the adherend material, a stick-slip pattern of crack growth is observed. Weak adhesion of the reference adhesive leads to an adhesive failure vs. a cohesive-adhesive failure in the case of adhesive B. On the contrary, the modification of adhesive A has an adverse effect on the G(I) of Al (-33%) and CFRP (-78%) as opposed to their reference counterparts. T2 - Polymer Testing T1 - The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded joints VL - 96 DO - 10.1016/j.polymertesting.2021.107122 ER -
@article{ author = "Saleh, Mohamed Nasr and Tomić, Nataša and Marinković, Aleksandar and de Freitas, Sofia Teixeira", year = "2021", abstract = "Two synthesized eco-epoxy components based on TA: (A) glycidyl ether and (B) glycidyl phosphate ester, are used, as a replacement for the Bisphenol A (BPA) based epoxy component, for bonding aluminum (Al) and carbon fiber reinforced polymer (CFRP). Their effect on the mode I fracture toughness (G(I)) is evaluated by Double Cantilever Beam (DCB) testing while using Digital Image Correlation (DIC) for in-situ crack tip monitoring. Compared to the reference adhesive, an improvement of (G(I)) of Al (43%) and CFRP (100%) is obtained when using adhesive B. Moreover, regardless of the adherend material, a stick-slip pattern of crack growth is observed. Weak adhesion of the reference adhesive leads to an adhesive failure vs. a cohesive-adhesive failure in the case of adhesive B. On the contrary, the modification of adhesive A has an adverse effect on the G(I) of Al (-33%) and CFRP (-78%) as opposed to their reference counterparts.", journal = "Polymer Testing", title = "The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded joints", volume = "96", doi = "10.1016/j.polymertesting.2021.107122" }
Saleh, M. N., Tomić, N., Marinković, A.,& de Freitas, S. T.. (2021). The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded joints. in Polymer Testing, 96. https://doi.org/10.1016/j.polymertesting.2021.107122
Saleh MN, Tomić N, Marinković A, de Freitas ST. The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded joints. in Polymer Testing. 2021;96. doi:10.1016/j.polymertesting.2021.107122 .
Saleh, Mohamed Nasr, Tomić, Nataša, Marinković, Aleksandar, de Freitas, Sofia Teixeira, "The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded joints" in Polymer Testing, 96 (2021), https://doi.org/10.1016/j.polymertesting.2021.107122 . .