Investigation of carbon nanotube reinforcement to polyurethane adhesive for improving impact performance of carbon fiber composite sandwich panels

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dc.contributor.authorCetin, Mehmet Emin
dc.date.accessioned2024-02-23T14:03:08Z
dc.date.available2024-02-23T14:03:08Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractIn this study, the development of a polyurethane adhesive by using carbon nanotubes (CNT) to enhance the lowvelocity impact behavior of aluminum honeycomb sandwich composite structures was investigated. The interaction of CNT and polyurethane for the impact behavior of sandwich composite panels is the main originality of this paper. The fabrication of carbon fiber reinforced composite (CFRC) sandwich structures was conducted using different polyurethane (PU) adhesives and different honeycomb cell sizes. CFRC sandwich structures were fabricated with multi-walled carbon nanotube (MWCNT) added and neat PU adhesives, 6.78 and 10.39 mm honeycomb cell sizes, and carbon fiber prepregs. Neat and nanotube added PU adhesives with MWCNT at reinforcement of 0.1% and 0.2% by weight percent were prepared. Sandwich composite panels were manufactured using the hot pressing method. Specimens of 100 x 100 mm were cut from the sandwich panels, and low-velocity impact tests were conducted at 100 J initial impact energy according to ASTM D7136 standard. After experiments, load-deflection curves, load-time, and energy-time histories were acquired. The absorbed energy values at maximum load were evaluated as a function of MWCNT content and honeycomb cell size. Specimens were sectioned from the impacted region and scanned using scanning electron and optical microscopes to analyze the damaged area. Specimens with MWCNT reinforced adhesives carried higher maximum loads compared to neat ones. CFRC sandwich structures with MWCNT added PU adhesives exhibited a 6% higher impact resistance at 100 J energy levels. Experimental results demonstrated that an increase in MWCNT loading and a decrease in PU adhesive cell size increased the maximum load values in CFRC sandwich panels. Among the nanotube added adhesives, 0.1 wt percent showed the best impact performance.en_US
dc.description.sponsorshipNecmettin Erbakan University through the BAP project [201216002]en_US
dc.description.sponsorshipThe author gratefully acknowledges the financial support from Necmettin Erbakan University through the BAP project 201216002. Furthermore, the author would like to thank KORDSA, Istanbul, Turkey, for their help in kindly supplying the waste prepregs.en_US
dc.identifier.doi10.1016/j.ijadhadh.2021.103002
dc.identifier.issn0143-7496
dc.identifier.issn1879-0127
dc.identifier.scopus2-s2.0-85116051976en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijadhadh.2021.103002
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11968
dc.identifier.volume112en_US
dc.identifier.wosWOS:000705647200003en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofInternational Journal Of Adhesion And Adhesivesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSandwich Compositeen_US
dc.subjectLow-Velocity Impacten_US
dc.subjectModified Polyurethane Adhesiveen_US
dc.subjectCarbon Nanotubeen_US
dc.titleInvestigation of carbon nanotube reinforcement to polyurethane adhesive for improving impact performance of carbon fiber composite sandwich panelsen_US
dc.typeArticleen_US

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