Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1088/2053-1591/aa99f8 http://hdl.handle.net/11449/170746 |
Resumo: | In 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. |
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Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminatemechanical propertiesmultiwalled carbon nanotubepolyetherimidethermal analysisIn 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.Materials and Technology Department School of Engineering Universidade Estadual Paulista (UNESP)Institute of Science and Technology Universidade Federal de Sao Paulo (UNIFESP)Materials and Technology Department School of Engineering Universidade Estadual Paulista (UNESP)Universidade Estadual Paulista (Unesp)Universidade Federal de São Paulo (UNIFESP)Santos, L. F.P. [UNESP]Ribeiro, B.Hein, L. R.O. [UNESP]Botelho, E. C. [UNESP]Costa, M. L. [UNESP]2018-12-11T16:52:15Z2018-12-11T16:52:15Z2017-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1088/2053-1591/aa99f8Materials Research Express, v. 4, n. 11, 2017.2053-1591http://hdl.handle.net/11449/17074610.1088/2053-1591/aa99f82-s2.0-850432641862-s2.0-85043264186.pdf43780783373436600000-0001-8338-4879Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Research Express1,429info:eu-repo/semantics/openAccess2024-01-17T06:30:18Zoai:repositorio.unesp.br:11449/170746Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-17T06:30:18Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate |
title |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate |
spellingShingle |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate Santos, L. F.P. [UNESP] mechanical properties multiwalled carbon nanotube polyetherimide thermal analysis |
title_short |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate |
title_full |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate |
title_fullStr |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate |
title_full_unstemmed |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate |
title_sort |
Processing, thermal and mechanical behaviour of PEI/MWCNT/carbon fiber nanostructured laminate |
author |
Santos, L. F.P. [UNESP] |
author_facet |
Santos, L. F.P. [UNESP] Ribeiro, B. Hein, L. R.O. [UNESP] Botelho, E. C. [UNESP] Costa, M. L. [UNESP] |
author_role |
author |
author2 |
Ribeiro, B. Hein, L. R.O. [UNESP] Botelho, E. C. [UNESP] Costa, M. L. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
Santos, L. F.P. [UNESP] Ribeiro, B. Hein, L. R.O. [UNESP] Botelho, E. C. [UNESP] Costa, M. L. [UNESP] |
dc.subject.por.fl_str_mv |
mechanical properties multiwalled carbon nanotube polyetherimide thermal analysis |
topic |
mechanical properties multiwalled carbon nanotube polyetherimide thermal analysis |
description |
In 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. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-01 2018-12-11T16:52:15Z 2018-12-11T16:52:15Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1088/2053-1591/aa99f8 Materials Research Express, v. 4, n. 11, 2017. 2053-1591 http://hdl.handle.net/11449/170746 10.1088/2053-1591/aa99f8 2-s2.0-85043264186 2-s2.0-85043264186.pdf 4378078337343660 0000-0001-8338-4879 |
url |
http://dx.doi.org/10.1088/2053-1591/aa99f8 http://hdl.handle.net/11449/170746 |
identifier_str_mv |
Materials Research Express, v. 4, n. 11, 2017. 2053-1591 10.1088/2053-1591/aa99f8 2-s2.0-85043264186 2-s2.0-85043264186.pdf 4378078337343660 0000-0001-8338-4879 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials Research Express 1,429 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1797790324990410752 |