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dc.contributor.authorSwarna, Vijay Sai
dc.contributor.authorAlarifi, Ibrahim M.
dc.contributor.authorKhan, Waqar A.
dc.contributor.authorAsmatulu, Ramazan
dc.identifier.citationSwarna, V. S., Alarifi, I. M., Khan, W. A. and Asmatulu, R. (2019), Enhancing fire and mechanical strengths of epoxy nanocomposites for metal/metal bonding of aircraft aluminum alloys. Polym. Compos.en_US
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractEpoxy adhesives have a wide range of applications in aerospace, automotive, marine, and construction industries. Epoxies reduce the weight of a structure by minimizing the use of fasteners. With the application of epoxy adhesive, a structure can achieve uniform stress distribution, structural integrity, durability, and cost-effectiveness. A mechanical weakness of epoxy adhesives is their lack of thermal stability and failure at post-curing-cycle temperatures. Fire retardancy can be improved by incorporating graphene nanomaterials as reinforcements in epoxy resins. These graphene additions have the potential to improve the epoxy's thermal, mechanical and electrical properties. The thermal characterization of the epoxy nanocomposites was carried out using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Surface morphology analysis was carried out for epoxy nanocomposites by using scanning electron microscopy. The test results showed that fire retardancy was significantly improved with the additions of 3 wt% and 5 wt% graphene nanomaterial inclusions when compared with pristine epoxy. The DSC results, when compared to 0.5 wt% and 5 wt% graphene inclusions showed the glass transition temperatures were increased by about 6.2%. The TGA results showed a decrease in the mass reduction by 6.2%, due to the inclusion of graphene nanomaterials. The lap shear strength when tested under tensile tests were enhanced about 27%, compared to pristine epoxy. Overall, graphene nanomaterial inclusions improved both mechanical and thermal properties while increasing the thermal stability of the epoxy when compared to pristine epoxy and other polymeric adhesives.en_US
dc.publisherJohn Wiley and Sonsen_US
dc.relation.ispartofseriesPolymer Composites;2019
dc.subjectAluminum alloysen_US
dc.subjectConstruction industryen_US
dc.subjectCost effectivenessen_US
dc.subjectDifferential scanning calorimetryen_US
dc.subjectEpoxy resinsen_US
dc.subjectGlass transitionen_US
dc.subjectMarine applicationsen_US
dc.subjectNanostructured materialsen_US
dc.subjectPlastic productsen_US
dc.subjectScanning electron microscopyen_US
dc.subjectTensile testingen_US
dc.subjectThermodynamic stabilityen_US
dc.titleEnhancing fire and mechanical strengths of epoxy nanocomposites for metal/metal bonding of aircraft aluminum alloysen_US
dc.rights.holder© 2019 Society of Plastics Engineersen_US

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