Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites

Detalhes bibliográficos
Autor(a) principal: Backes, Eduardo Henrique
Data de Publicação: 2018
Outros Autores: Sene, Tarcisio Sanson, Passador, Fabio Roberto [UNIFESP], Pessan, Luiz Antonio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNIFESP
Texto Completo: http://dx.doi.org/10.1590/1980-5373-MR-2017-0801
https://repositorio.unifesp.br/handle/11600/54303
Resumo: Epoxy/CNT and epoxy/CNT/calcium carbonate nanocomposites were produced via in situ polymerization assisted by ultrasonication without solvent and electrical, mechanical, thermal and thermomechanical properties of nanocomposites were evaluated. Epoxy/CNT presented very low percolation threshold, near 0.05 wt % and nanocomposites with higher contents of CNT presented further increase m electrical conductivity. The addition of calcium carbonate in epoxy/CNT nanocomposites increased the electrical conductivity, due to volume exclusion phenomena. Regarding thermal properties, due to the low content of the CNT and calcium carbonate no changes in glass transition (Tg) were observed. DMA results showed no significant changes in thermomechanical properties, once the contents of CNT and calcium carbonate are below stiffness threshold, however an increase of flexural modulus by adding CNT and calcium carbonate was observed.
id UFSP_8793f8efbea68e6cf0e0c5fd57fbc83a
oai_identifier_str oai:repositorio.unifesp.br/:11600/54303
network_acronym_str UFSP
network_name_str Repositório Institucional da UNIFESP
repository_id_str 3465
spelling Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate NanocompositesEpoxy nanocompositesMWCNTdielectrical propertiesEpoxy/CNT and epoxy/CNT/calcium carbonate nanocomposites were produced via in situ polymerization assisted by ultrasonication without solvent and electrical, mechanical, thermal and thermomechanical properties of nanocomposites were evaluated. Epoxy/CNT presented very low percolation threshold, near 0.05 wt % and nanocomposites with higher contents of CNT presented further increase m electrical conductivity. The addition of calcium carbonate in epoxy/CNT nanocomposites increased the electrical conductivity, due to volume exclusion phenomena. Regarding thermal properties, due to the low content of the CNT and calcium carbonate no changes in glass transition (Tg) were observed. DMA results showed no significant changes in thermomechanical properties, once the contents of CNT and calcium carbonate are below stiffness threshold, however an increase of flexural modulus by adding CNT and calcium carbonate was observed.Univ Fed Sao Carlos, Dept Engn Mat, Via Washington Luiz,Km 235, BR-13565905 Sao Carlos, SP, BrazilUniv Fed Sao Paulo, Inst Ciencia & Tecnol, Rua Talim 330, BR-12231280 Sao Jose Dos Campos, SP, BrazilUniv Fed Sao Paulo, Inst Ciencia & Tecnol, Rua Talim 330, BR-12231280 Sao Jose Dos Campos, SP, BrazilWeb of ScienceSao Paulo Research Foundation (FAPESP)National Council for Scientific and Technological Development (CNPq)FAPESP: 2014/16299-8CNPq: 309 978/2014-0Univ Fed Sao Carlos, Dept Engenharia Materials2020-07-08T13:09:56Z2020-07-08T13:09:56Z2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion-http://dx.doi.org/10.1590/1980-5373-MR-2017-0801Materials Research-Ibero-American Journal Of Materials. Sao Carlos, v. 21, n. 1, p. -, 2018.10.1590/1980-5373-MR-2017-0801S1516-14392018000100119.pdf1516-1439S1516-14392018000100119https://repositorio.unifesp.br/handle/11600/54303WOS:000432383900041engMaterials Research-Ibero-American Journal Of MaterialsSao Carlosinfo:eu-repo/semantics/openAccessBackes, Eduardo HenriqueSene, Tarcisio SansonPassador, Fabio Roberto [UNIFESP]Pessan, Luiz Antonioreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP2021-09-29T09:31:01Zoai:repositorio.unifesp.br/:11600/54303Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652021-09-29T09:31:01Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false
dc.title.none.fl_str_mv Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
title Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
spellingShingle Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
Backes, Eduardo Henrique
Epoxy nanocomposites
MWCNT
dielectrical properties
title_short Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
title_full Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
title_fullStr Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
title_full_unstemmed Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
title_sort Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites
author Backes, Eduardo Henrique
author_facet Backes, Eduardo Henrique
Sene, Tarcisio Sanson
Passador, Fabio Roberto [UNIFESP]
Pessan, Luiz Antonio
author_role author
author2 Sene, Tarcisio Sanson
Passador, Fabio Roberto [UNIFESP]
Pessan, Luiz Antonio
author2_role author
author
author
dc.contributor.author.fl_str_mv Backes, Eduardo Henrique
Sene, Tarcisio Sanson
Passador, Fabio Roberto [UNIFESP]
Pessan, Luiz Antonio
dc.subject.por.fl_str_mv Epoxy nanocomposites
MWCNT
dielectrical properties
topic Epoxy nanocomposites
MWCNT
dielectrical properties
description Epoxy/CNT and epoxy/CNT/calcium carbonate nanocomposites were produced via in situ polymerization assisted by ultrasonication without solvent and electrical, mechanical, thermal and thermomechanical properties of nanocomposites were evaluated. Epoxy/CNT presented very low percolation threshold, near 0.05 wt % and nanocomposites with higher contents of CNT presented further increase m electrical conductivity. The addition of calcium carbonate in epoxy/CNT nanocomposites increased the electrical conductivity, due to volume exclusion phenomena. Regarding thermal properties, due to the low content of the CNT and calcium carbonate no changes in glass transition (Tg) were observed. DMA results showed no significant changes in thermomechanical properties, once the contents of CNT and calcium carbonate are below stiffness threshold, however an increase of flexural modulus by adding CNT and calcium carbonate was observed.
publishDate 2018
dc.date.none.fl_str_mv 2018
2020-07-08T13:09:56Z
2020-07-08T13:09:56Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1980-5373-MR-2017-0801
Materials Research-Ibero-American Journal Of Materials. Sao Carlos, v. 21, n. 1, p. -, 2018.
10.1590/1980-5373-MR-2017-0801
S1516-14392018000100119.pdf
1516-1439
S1516-14392018000100119
https://repositorio.unifesp.br/handle/11600/54303
WOS:000432383900041
url http://dx.doi.org/10.1590/1980-5373-MR-2017-0801
https://repositorio.unifesp.br/handle/11600/54303
identifier_str_mv Materials Research-Ibero-American Journal Of Materials. Sao Carlos, v. 21, n. 1, p. -, 2018.
10.1590/1980-5373-MR-2017-0801
S1516-14392018000100119.pdf
1516-1439
S1516-14392018000100119
WOS:000432383900041
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Research-Ibero-American Journal Of Materials
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv -
dc.coverage.none.fl_str_mv Sao Carlos
dc.publisher.none.fl_str_mv Univ Fed Sao Carlos, Dept Engenharia Materials
publisher.none.fl_str_mv Univ Fed Sao Carlos, Dept Engenharia Materials
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNIFESP
instname:Universidade Federal de São Paulo (UNIFESP)
instacron:UNIFESP
instname_str Universidade Federal de São Paulo (UNIFESP)
instacron_str UNIFESP
institution UNIFESP
reponame_str Repositório Institucional da UNIFESP
collection Repositório Institucional da UNIFESP
repository.name.fl_str_mv Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)
repository.mail.fl_str_mv biblioteca.csp@unifesp.br
_version_ 1814268370813452288

Registros relacionados