An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites

Detalhes bibliográficos
Autor(a) principal: Abedi, Mohammadmahdi
Data de Publicação: 2020
Outros Autores: Fangueiro, Raúl, Correia, A. Gomes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/70077
Resumo: "Article ID 6749150"
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spelling An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious compositesHybrid CNT/GNP DispersionCementitiousGeomaterialsGeocompositeNanomaterialsMortarMicrostructureThermalDurabilityMechanicalEngenharia e Tecnologia::NanotecnologiaScience & Technology"Article ID 6749150"This paper reports a study undertaken to achieve a compatible and affordable technique for the high-quality dispersion of carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) in an aqueous suspension to be used in multifunctional cementitious composites. In this research work, two noncovalent surfactants with different dispersion mechanisms (Pluronic F-127 (nonionic) and sodium dodecylbenzene sulfonate (SDBS) (ionic)) were used. We evaluated the influences of various factors on the dispersion quality, such as the surfactant concentration, sonication time, and temperature using UV-visible spectroscopy, optical microscopic image analysis, zeta potentials, and particle size measurement. The effect of tributyl phosphate (TBP) used as an antifoam agent was also evaluated. The optimum suspensions of each surfactant were used to produce cementitious composites, and their mechanical, microstructural, electrical, and thermal behaviors were assessed and analyzed. The best dispersed CNT+GNP aqueous suspensions using Pluronic and SDBS were obtained for concentrations of 10% and 5%, respectively, with 3 hours of sonication, at 40°C, with TBP used for both surfactants. The results also demonstrate that cementitious composites reinforced with CNT+GNP/Pluronic showed better mechanical performance and microstructural characteristics due to the higher quality of the dispersion and the increasing hydration rate. Composites prepared with an SDBS suspension demonstrated lower electrical and thermal conductivities compared to those of the Pluronic suspension due to changes in the intrinsic properties of CNTs and GNPs by the SDBS dispersion mechanism.This work was supported by the European Commission-Shiff2Rail Program under the project “IN2TRACK2–826255-H2020-S2RJU-2018/H2020-S2RJU CFM-2018".Hindawi LimitedUniversidade do MinhoAbedi, MohammadmahdiFangueiro, RaúlCorreia, A. Gomes2020-07-172020-07-17T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/70077engAbedi, M., Fangueiro, R., & Correia, A. G. (2020). An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites. Journal of Nanomaterials, 2020, art. no. 6749150, doi:10.1155/2020/67491501687-41101687-412910.1155/2020/6749150https://www.hindawi.com/journals/jnm/2020/6749150/info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:54:02Zoai:repositorium.sdum.uminho.pt:1822/70077Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:53:33.738543Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
title An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
spellingShingle An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
Abedi, Mohammadmahdi
Hybrid CNT/GNP Dispersion
Cementitious
Geomaterials
Geocomposite
Nanomaterials
Mortar
Microstructure
Thermal
Durability
Mechanical
Engenharia e Tecnologia::Nanotecnologia
Science & Technology
title_short An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
title_full An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
title_fullStr An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
title_full_unstemmed An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
title_sort An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites
author Abedi, Mohammadmahdi
author_facet Abedi, Mohammadmahdi
Fangueiro, Raúl
Correia, A. Gomes
author_role author
author2 Fangueiro, Raúl
Correia, A. Gomes
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Abedi, Mohammadmahdi
Fangueiro, Raúl
Correia, A. Gomes
dc.subject.por.fl_str_mv Hybrid CNT/GNP Dispersion
Cementitious
Geomaterials
Geocomposite
Nanomaterials
Mortar
Microstructure
Thermal
Durability
Mechanical
Engenharia e Tecnologia::Nanotecnologia
Science & Technology
topic Hybrid CNT/GNP Dispersion
Cementitious
Geomaterials
Geocomposite
Nanomaterials
Mortar
Microstructure
Thermal
Durability
Mechanical
Engenharia e Tecnologia::Nanotecnologia
Science & Technology
description "Article ID 6749150"
publishDate 2020
dc.date.none.fl_str_mv 2020-07-17
2020-07-17T00:00:00Z
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://hdl.handle.net/1822/70077
url http://hdl.handle.net/1822/70077
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Abedi, M., Fangueiro, R., & Correia, A. G. (2020). An effective method for hybrid CNT/GNP dispersion and its effects on the mechanical, microstructural, thermal, and electrical properties of multifunctional cementitious composites. Journal of Nanomaterials, 2020, art. no. 6749150, doi:10.1155/2020/6749150
1687-4110
1687-4129
10.1155/2020/6749150
https://www.hindawi.com/journals/jnm/2020/6749150/
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.publisher.none.fl_str_mv Hindawi Limited
publisher.none.fl_str_mv Hindawi Limited
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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