Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/71795

TitleMultiscale carbon fibre–reinforced polymer (CFRP) composites containing carbon nanotubes with tailored interfaces
Author(s)Santos, Raquel M.
Vale, Diogo
Rocha, Jéssica
Martins, Carla I.
Mould, Sacha T.
Rocha, Nuno
KeywordsCarbon nanotubes
Composites
Fracture toughness
Multifunctionality
Percolation threshold
Issue date1-Jul-2019
PublisherBlackwell Publishing Ltd
JournalFatigue and Fracture of Engineering Materials and Structures
Abstract(s)Pristine and functionalized multiwalled carbon nanotubes (MWCNTs) with tailored interfaces were efficiently dispersed in an epoxy matrix using a three-roll mill and further reinforced with carbon fibres. 1.3-Dipolar cycloaddition of azomethine ylides was used for the chemical modification of MWCNTs by a solvent-free approach. The influence of different loadings and types of MWCNTs on the final properties of the epoxy matrix was studied. Moreover, the most promising formulations were selected for manufacturing of prepreg sheets. The transversal tensile properties and the interlaminar fracture toughness under mode I loading (G ) of multiscale carbon fibre–reinforced polymer (CFRP) composites were characterized. The results point out that it is not straightforward to transfer the remarkable intrinsic properties of MWCNTs to the composite level, although an overall positive trend was found. Double cantilever beam experiments showed that G of CFRP composites was improved 44% at ultralow content of functionalized MWCNTs (0.043 wt%). IC IC
TypeArticle
URIhttps://hdl.handle.net/1822/71795
DOI10.1111/ffe.13006
ISSN8756-758X
e-ISSN1460-2695
Publisher versionhttps://onlinelibrary.wiley.com/journal/14602695
Peer-Reviewedyes
AccessRestricted access (Author)
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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