On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/57345 |
Resumo: | Conducting polymer composites are increasingly investigated for the development of piezoresistive materials for sensor applications due to their outstanding electromechanical properties. In this work, the effect of different surfactants on the piezoresistive response of triblock copolymer styrene-butadiene-styrene (SBS)/carbon nanotubes (CNT) composites was studied. Surfactants act as dispersing agents for CNT decreasing the size of agglomerates. The use of different surfactants such as Triton-X100 (TX-100), cetyltrimethylammonium bromide (CTAB) and sodium dodecylbenzenesulfonate (SDBS) affects the percolation threshold as well as the mechanical and piezoresistive properties of the composites. TX-100 decreases the mechanical response and electrical conductivity of the polymer composites, leading also to low piezoresistive response. CTAB and SDBS decrease the size of the agglomerates while maintaining their electrical conductivity up to 4 wt% CNT. Moreover, these composites present improved piezoresistive response with GF values up to 3 and deformations up to 10%, similar to the behaviour of commercial sensors with improved filler dispersion within SEBS polymer and promoting the use of novel range of printable methods. |
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On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer compositesScience & TechnologyConducting polymer composites are increasingly investigated for the development of piezoresistive materials for sensor applications due to their outstanding electromechanical properties. In this work, the effect of different surfactants on the piezoresistive response of triblock copolymer styrene-butadiene-styrene (SBS)/carbon nanotubes (CNT) composites was studied. Surfactants act as dispersing agents for CNT decreasing the size of agglomerates. The use of different surfactants such as Triton-X100 (TX-100), cetyltrimethylammonium bromide (CTAB) and sodium dodecylbenzenesulfonate (SDBS) affects the percolation threshold as well as the mechanical and piezoresistive properties of the composites. TX-100 decreases the mechanical response and electrical conductivity of the polymer composites, leading also to low piezoresistive response. CTAB and SDBS decrease the size of the agglomerates while maintaining their electrical conductivity up to 4 wt% CNT. Moreover, these composites present improved piezoresistive response with GF values up to 3 and deformations up to 10%, similar to the behaviour of commercial sensors with improved filler dispersion within SEBS polymer and promoting the use of novel range of printable methods.This work was supported by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Funding UID/FIS/04650/2013. The authors thank the FCT for financial support under projects PTDC/EEI-SII/5582/2014 and PTDC/CTM ENE/5387/2014. P. C. also thank the FCT for the SFRH/BPD/110914/2015 grant, as well POCH and European Union. Financial support from the Basque Government Industry Department under the ELKARTEK and HAZITEK program is also acknowledged as well as funding by the Spanish Ministry of Economy and Competitiveness (MINECO) through the project MAT2016-76039-C4 3-R.info:eu-repo/semantics/publishedVersionRoyal Society of ChemistryUniversidade do MinhoCosta, P.Maceiras, A.San Sebastián, M.García-Astrain, C.Vilas, J. L.Lanceros-Méndez, S.20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/57345eng2050-752610.1039/c8tc03829einfo: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:RCAAP2023-07-21T12:21:57Zoai:repositorium.sdum.uminho.pt:1822/57345Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:15:21.108469Repositório 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 |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites |
title |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites |
spellingShingle |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites Costa, P. Science & Technology |
title_short |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites |
title_full |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites |
title_fullStr |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites |
title_full_unstemmed |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites |
title_sort |
On the use of surfactants for improving nanofiller dispersion and piezoresistive response in stretchable polymer composites |
author |
Costa, P. |
author_facet |
Costa, P. Maceiras, A. San Sebastián, M. García-Astrain, C. Vilas, J. L. Lanceros-Méndez, S. |
author_role |
author |
author2 |
Maceiras, A. San Sebastián, M. García-Astrain, C. Vilas, J. L. Lanceros-Méndez, S. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Costa, P. Maceiras, A. San Sebastián, M. García-Astrain, C. Vilas, J. L. Lanceros-Méndez, S. |
dc.subject.por.fl_str_mv |
Science & Technology |
topic |
Science & Technology |
description |
Conducting polymer composites are increasingly investigated for the development of piezoresistive materials for sensor applications due to their outstanding electromechanical properties. In this work, the effect of different surfactants on the piezoresistive response of triblock copolymer styrene-butadiene-styrene (SBS)/carbon nanotubes (CNT) composites was studied. Surfactants act as dispersing agents for CNT decreasing the size of agglomerates. The use of different surfactants such as Triton-X100 (TX-100), cetyltrimethylammonium bromide (CTAB) and sodium dodecylbenzenesulfonate (SDBS) affects the percolation threshold as well as the mechanical and piezoresistive properties of the composites. TX-100 decreases the mechanical response and electrical conductivity of the polymer composites, leading also to low piezoresistive response. CTAB and SDBS decrease the size of the agglomerates while maintaining their electrical conductivity up to 4 wt% CNT. Moreover, these composites present improved piezoresistive response with GF values up to 3 and deformations up to 10%, similar to the behaviour of commercial sensors with improved filler dispersion within SEBS polymer and promoting the use of novel range of printable methods. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2018-01-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/57345 |
url |
https://hdl.handle.net/1822/57345 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2050-7526 10.1039/c8tc03829e |
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 |
Royal Society of Chemistry |
publisher.none.fl_str_mv |
Royal Society of Chemistry |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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1799132599249010688 |