Solvent effects on structural changes in self-healing epoxy composites
Samo za registrovane korisnike
2020
Autori
Radović, IvanaStajčić, Aleksandar
Radisavljević, Anđela
Veljković, Filip M.
Čebela, Maria
Mitić, Vojislav V.
Radojević, Vesna
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Nowadays, there is a very high importance of composite research and variety of their applications in the modern world. In that sense, we researched hollow glass capillaries filled with dissolved Grubbs catalyst (GC) and dicyclopentadiene (DCPD) were incorporated into a fiber-reinforced epoxy with the aim of improving the flow of healing agents to the crack site. The morphological investigation of the crack site was performed using field emission scanning electron microscopy (FESEM), showing the difference between the samples depending on the used solvent. The software analysis of sample photographs has been performed by calculating the fractured/healed surface area of the samples, revealing that approximately 20% of the volume was affected by the impact. Fourier transform infrared spectroscopy (FTIR) revealed that poly (dicyclopentadiene) (PDCPD) formed at the healed interface. However, the FTIR investigation of catalyst stability in different solvents showed structural changes in GC a...nd partial deactivation. The mechanical tests of the samples showed that a recovery of 60% after 24 h at room temperature could be achieved through the use of a solvent and very low concentration of GC. The performed research results are a good base to develop the model for predicting the processes and morphology, with the goal to design the final mechanical and in the future, thermal, properties in advance. This opens a new direction for future research in the field of composite healing.
Ključne reči:
Self-healing / Solvent effect / Morphological properties / Structural investigation / Mechanical propertiesIzvor:
Materials Chemistry and Physics, 2020, 256Izdavač:
- Elsevier Science Sa, Lausanne
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200017 (Univerzitet u Beogradu, Institut za nuklearne nauke Vinča, Beograd-Vinča) (RS-200017)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200026 (Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju - IHTM) (RS-200026)
DOI: 10.1016/j.matchemphys.2020.123761
ISSN: 0254-0584
WoS: 000582701400090
Scopus: 2-s2.0-85090002832
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Radović, Ivana AU - Stajčić, Aleksandar AU - Radisavljević, Anđela AU - Veljković, Filip M. AU - Čebela, Maria AU - Mitić, Vojislav V. AU - Radojević, Vesna PY - 2020 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4435 AB - Nowadays, there is a very high importance of composite research and variety of their applications in the modern world. In that sense, we researched hollow glass capillaries filled with dissolved Grubbs catalyst (GC) and dicyclopentadiene (DCPD) were incorporated into a fiber-reinforced epoxy with the aim of improving the flow of healing agents to the crack site. The morphological investigation of the crack site was performed using field emission scanning electron microscopy (FESEM), showing the difference between the samples depending on the used solvent. The software analysis of sample photographs has been performed by calculating the fractured/healed surface area of the samples, revealing that approximately 20% of the volume was affected by the impact. Fourier transform infrared spectroscopy (FTIR) revealed that poly (dicyclopentadiene) (PDCPD) formed at the healed interface. However, the FTIR investigation of catalyst stability in different solvents showed structural changes in GC and partial deactivation. The mechanical tests of the samples showed that a recovery of 60% after 24 h at room temperature could be achieved through the use of a solvent and very low concentration of GC. The performed research results are a good base to develop the model for predicting the processes and morphology, with the goal to design the final mechanical and in the future, thermal, properties in advance. This opens a new direction for future research in the field of composite healing. PB - Elsevier Science Sa, Lausanne T2 - Materials Chemistry and Physics T1 - Solvent effects on structural changes in self-healing epoxy composites VL - 256 DO - 10.1016/j.matchemphys.2020.123761 ER -
@article{ author = "Radović, Ivana and Stajčić, Aleksandar and Radisavljević, Anđela and Veljković, Filip M. and Čebela, Maria and Mitić, Vojislav V. and Radojević, Vesna", year = "2020", abstract = "Nowadays, there is a very high importance of composite research and variety of their applications in the modern world. In that sense, we researched hollow glass capillaries filled with dissolved Grubbs catalyst (GC) and dicyclopentadiene (DCPD) were incorporated into a fiber-reinforced epoxy with the aim of improving the flow of healing agents to the crack site. The morphological investigation of the crack site was performed using field emission scanning electron microscopy (FESEM), showing the difference between the samples depending on the used solvent. The software analysis of sample photographs has been performed by calculating the fractured/healed surface area of the samples, revealing that approximately 20% of the volume was affected by the impact. Fourier transform infrared spectroscopy (FTIR) revealed that poly (dicyclopentadiene) (PDCPD) formed at the healed interface. However, the FTIR investigation of catalyst stability in different solvents showed structural changes in GC and partial deactivation. The mechanical tests of the samples showed that a recovery of 60% after 24 h at room temperature could be achieved through the use of a solvent and very low concentration of GC. The performed research results are a good base to develop the model for predicting the processes and morphology, with the goal to design the final mechanical and in the future, thermal, properties in advance. This opens a new direction for future research in the field of composite healing.", publisher = "Elsevier Science Sa, Lausanne", journal = "Materials Chemistry and Physics", title = "Solvent effects on structural changes in self-healing epoxy composites", volume = "256", doi = "10.1016/j.matchemphys.2020.123761" }
Radović, I., Stajčić, A., Radisavljević, A., Veljković, F. M., Čebela, M., Mitić, V. V.,& Radojević, V.. (2020). Solvent effects on structural changes in self-healing epoxy composites. in Materials Chemistry and Physics Elsevier Science Sa, Lausanne., 256. https://doi.org/10.1016/j.matchemphys.2020.123761
Radović I, Stajčić A, Radisavljević A, Veljković FM, Čebela M, Mitić VV, Radojević V. Solvent effects on structural changes in self-healing epoxy composites. in Materials Chemistry and Physics. 2020;256. doi:10.1016/j.matchemphys.2020.123761 .
Radović, Ivana, Stajčić, Aleksandar, Radisavljević, Anđela, Veljković, Filip M., Čebela, Maria, Mitić, Vojislav V., Radojević, Vesna, "Solvent effects on structural changes in self-healing epoxy composites" in Materials Chemistry and Physics, 256 (2020), https://doi.org/10.1016/j.matchemphys.2020.123761 . .