Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate

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dc.citation.issue11
dc.citation.volume4
dc.contributor.authorSantos, L. F. P.
dc.contributor.authorRibeiro, B. [UNIFESP]
dc.contributor.authorHein, L. R. O.
dc.contributor.authorBotelho, E. C.
dc.contributor.authorCosta, M. L.
dc.coverageBristol
dc.date.accessioned2020-09-01T13:21:24Z
dc.date.available2020-09-01T13:21:24Z
dc.date.issued2017
dc.description.abstractIn this work, nanostructured composites of polyetherimide (PEI) with addition of functionalized multiwall carbon nanotube (MWCNT) were processed via solution mixing. After processing, these nanocomposites were evaluated by thermogravimetry (TGA), dynamic-mechanical analysis (DMA), scanning electron microscopy (SEM) and atomic force microscopy (AFM). Subsequently, the nanocomposite was processed with carbon fibers by using hot compression molding. In order to evaluate interlaminar fracture strength, the processed laminates were mechanically evaluated by interlaminar shear strength (ILSS) and compression shear test (CST). Also, the Weibull distribution was employed to help in the statistical treatment of the data obtained from the mechanical tests. With regards to the fracture of the specimens, optical microscopy was used for the evaluation of the material. The addition of 1 wt% of MWCNT in the polymer matrix increased both thermal stability and viscoelastic behavior of the material. These improvements positively impacted the mechanical properties, generating a 16% and 58% increase in the short-beam strength and apparent interlaminar shear, respectively. In addition, it can be verified from morphological analysis of the fracture a change in the failure mode of the laminate by the incorporation of MWCNT. This behavior can be proven from CST test where there was no presence of the shear force by compression.en
dc.description.affiliationUniv Estadual Paulista UNESP, Sch Engn, Mat & Technol Dept, Guaratingueta, Brazil
dc.description.affiliationUniv Fed Sao Paulo UNIFESP, Inst Sci & Technol, Sao Jose Dos Campos, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo UNIFESP, Inst Sci & Technol, Sao Jose Dos Campos, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipSao Paulo Research Foundation (FAPESP) from Brazil
dc.description.sponsorshipNational Council for Scientific and Technological Development (CNPq) from Brazil
dc.description.sponsorshipIDFAPESP: 2016/12810-5
dc.format.extent-
dc.identifierhttp://dx.doi.org/10.1088/2053-1591/aa99f8
dc.identifier.citationMaterials Research Express. Bristol, v. 4, n. 11, p. -, 2017.
dc.identifier.doi10.1088/2053-1591/aa99f8
dc.identifier.issn2053-1591
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/58237
dc.identifier.wosWOS:000417559600009
dc.language.isoeng
dc.publisherIop Publishing Ltd
dc.relation.ispartofMaterials Research Express
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectmultiwalled carbon nanotubeen
dc.subjectpolyetherimideen
dc.subjectthermal analysisen
dc.subjectmechanical propertiesen
dc.titleProcessing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminateen
dc.typeinfo:eu-repo/semantics/article
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