Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites
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/10.1016/j.polymertesting.2017.03.031 http://hdl.handle.net/11449/174448 |
Resumo: | Synergistic processes in hybrid composites have frequently been described in the literature over the past few years, opening doors to new studies and applications for this type of material. In this study, three-phase composites were obtained using polyurethane (PU) as the matrix, lead zirconate titanate (PZT) as the ferroelectric ceramic and carbon black (CB) as the conductive phase. The discussion is primarily focused on a comparison of the electrical, thermal and dielectric properties of three-phase composites with those of PU_CB and PU_PZT biphasic composites. The study describes a synergistic effect between the PU/PZT/CB phases involved in the generation of charges between the particles, implying better homogeneity of the composites as well as influence over the PU crystallization. The PU_CB conductivity profile showed a phenomenon of multi-step percolation thresholds attributed to the molecular structure and repulsive surface charge of CB particles. The surface charge phenomenon restricted the percolation curve analysis of the three-phase composites by means of classic percolation theory, shown by distortion of the critical exponents. The dielectric constant three-phase composites increased gradually as a function of CB in accordance with the percolation profile. |
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Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase compositesAnisotropyCarbon blackCastingPolymer-matrix compositeSynergismSynergistic processes in hybrid composites have frequently been described in the literature over the past few years, opening doors to new studies and applications for this type of material. In this study, three-phase composites were obtained using polyurethane (PU) as the matrix, lead zirconate titanate (PZT) as the ferroelectric ceramic and carbon black (CB) as the conductive phase. The discussion is primarily focused on a comparison of the electrical, thermal and dielectric properties of three-phase composites with those of PU_CB and PU_PZT biphasic composites. The study describes a synergistic effect between the PU/PZT/CB phases involved in the generation of charges between the particles, implying better homogeneity of the composites as well as influence over the PU crystallization. The PU_CB conductivity profile showed a phenomenon of multi-step percolation thresholds attributed to the molecular structure and repulsive surface charge of CB particles. The surface charge phenomenon restricted the percolation curve analysis of the three-phase composites by means of classic percolation theory, shown by distortion of the critical exponents. The dielectric constant three-phase composites increased gradually as a function of CB in accordance with the percolation profile.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista (UNESP) Faculdade de Engenharia Câmpus de Ilha Solteira, Avenida Brasil, 56, CentroUniversidade Estadual Paulista (UNESP) Câmpus Experimental de Rosana, Avenida dos Barrageiros, 1.881, CentroUniversidade Estadual Paulista (UNESP) Faculdade de Engenharia Câmpus de Ilha Solteira, Avenida Brasil, 56, CentroUniversidade Estadual Paulista (UNESP) Câmpus Experimental de Rosana, Avenida dos Barrageiros, 1.881, CentroCNPq: 306753/2012-0Universidade Estadual Paulista (Unesp)Sanches, Alex Otávio [UNESP]Kanda, Darcy Hiroe Fujii [UNESP]Malmonge, Luiz Francisco [UNESP]da Silva, Michael Jones [UNESP]Sakamoto, Walter Katsumi [UNESP]Malmonge, José Antonio [UNESP]2018-12-11T17:11:10Z2018-12-11T17:11:10Z2017-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article253-259application/pdfhttp://dx.doi.org/10.1016/j.polymertesting.2017.03.031Polymer Testing, v. 60, p. 253-259.0142-9418http://hdl.handle.net/11449/17444810.1016/j.polymertesting.2017.03.0312-s2.0-850172687092-s2.0-85017268709.pdf1016869974988190Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPolymer Testing0,669info:eu-repo/semantics/openAccess2023-11-22T06:12:47Zoai:repositorio.unesp.br:11449/174448Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-22T06:12:47Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites |
title |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites |
spellingShingle |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites Sanches, Alex Otávio [UNESP] Anisotropy Carbon black Casting Polymer-matrix composite Synergism |
title_short |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites |
title_full |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites |
title_fullStr |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites |
title_full_unstemmed |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites |
title_sort |
Synergistic effects on polyurethane/lead zirconate titanate/carbon black three-phase composites |
author |
Sanches, Alex Otávio [UNESP] |
author_facet |
Sanches, Alex Otávio [UNESP] Kanda, Darcy Hiroe Fujii [UNESP] Malmonge, Luiz Francisco [UNESP] da Silva, Michael Jones [UNESP] Sakamoto, Walter Katsumi [UNESP] Malmonge, José Antonio [UNESP] |
author_role |
author |
author2 |
Kanda, Darcy Hiroe Fujii [UNESP] Malmonge, Luiz Francisco [UNESP] da Silva, Michael Jones [UNESP] Sakamoto, Walter Katsumi [UNESP] Malmonge, José Antonio [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Sanches, Alex Otávio [UNESP] Kanda, Darcy Hiroe Fujii [UNESP] Malmonge, Luiz Francisco [UNESP] da Silva, Michael Jones [UNESP] Sakamoto, Walter Katsumi [UNESP] Malmonge, José Antonio [UNESP] |
dc.subject.por.fl_str_mv |
Anisotropy Carbon black Casting Polymer-matrix composite Synergism |
topic |
Anisotropy Carbon black Casting Polymer-matrix composite Synergism |
description |
Synergistic processes in hybrid composites have frequently been described in the literature over the past few years, opening doors to new studies and applications for this type of material. In this study, three-phase composites were obtained using polyurethane (PU) as the matrix, lead zirconate titanate (PZT) as the ferroelectric ceramic and carbon black (CB) as the conductive phase. The discussion is primarily focused on a comparison of the electrical, thermal and dielectric properties of three-phase composites with those of PU_CB and PU_PZT biphasic composites. The study describes a synergistic effect between the PU/PZT/CB phases involved in the generation of charges between the particles, implying better homogeneity of the composites as well as influence over the PU crystallization. The PU_CB conductivity profile showed a phenomenon of multi-step percolation thresholds attributed to the molecular structure and repulsive surface charge of CB particles. The surface charge phenomenon restricted the percolation curve analysis of the three-phase composites by means of classic percolation theory, shown by distortion of the critical exponents. The dielectric constant three-phase composites increased gradually as a function of CB in accordance with the percolation profile. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-01 2018-12-11T17:11:10Z 2018-12-11T17:11:10Z |
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/10.1016/j.polymertesting.2017.03.031 Polymer Testing, v. 60, p. 253-259. 0142-9418 http://hdl.handle.net/11449/174448 10.1016/j.polymertesting.2017.03.031 2-s2.0-85017268709 2-s2.0-85017268709.pdf 1016869974988190 |
url |
http://dx.doi.org/10.1016/j.polymertesting.2017.03.031 http://hdl.handle.net/11449/174448 |
identifier_str_mv |
Polymer Testing, v. 60, p. 253-259. 0142-9418 10.1016/j.polymertesting.2017.03.031 2-s2.0-85017268709 2-s2.0-85017268709.pdf 1016869974988190 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Polymer Testing 0,669 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
253-259 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 |
|
_version_ |
1797789781658173440 |