Study of the filtration performance of multilayer and multiscale fibrous structures
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/1822/76712 |
Resumo: | As the incidence of small-diameter particles in the air has increased in recent decades, the development of efficient filtration systems is both urgent and necessary. Nanotechnology, more precisely, electrospun nanofibres, has been identified as a potential solution for this issue, since it allows for the production of membranes with high rates of fibres per unit area, increasing the probability of nanoparticle collision and consequent retention. In the present study, the electrospinning technique of polyamide nanofibre production was optimized with the variation of parameters such as polymer concentration, flow rate and needle diameter. The optimized polyamide nanofibres were combined with polypropylene and polyester microfibres to construct a multilayer and multiscale system with an increased filtration efficiency. We observed that the penetration value of the multilayer system with a PA membrane in the composition, produced for 20 min in the electrospinning, is 2.7 times smaller than the penetration value of the system with the absence of micro and nano fibers. |
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Study of the filtration performance of multilayer and multiscale fibrous structuresElectrospinningNanofibresFiltrationParticles retentionMultilayer systemsScience & TechnologyAs the incidence of small-diameter particles in the air has increased in recent decades, the development of efficient filtration systems is both urgent and necessary. Nanotechnology, more precisely, electrospun nanofibres, has been identified as a potential solution for this issue, since it allows for the production of membranes with high rates of fibres per unit area, increasing the probability of nanoparticle collision and consequent retention. In the present study, the electrospinning technique of polyamide nanofibre production was optimized with the variation of parameters such as polymer concentration, flow rate and needle diameter. The optimized polyamide nanofibres were combined with polypropylene and polyester microfibres to construct a multilayer and multiscale system with an increased filtration efficiency. We observed that the penetration value of the multilayer system with a PA membrane in the composition, produced for 20 min in the electrospinning, is 2.7 times smaller than the penetration value of the system with the absence of micro and nano fibers.This research was funded by Portugal 2020 through project nº POCI-01-02B7-FEDER048171, NanoMask - “Desenvolvimento de máscaras de proteção do tipo FFP2 termoconformadas, com gradiente de filtração (nano e micro), para contexto profissional”.Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoPais, Vânia NascimentoMota, CarlosBessa, JoãoDias, José GuilhermeCunha, Fernando Eduardo MacedoFangueiro, Raúl2021-11-242021-11-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/76712engPais, V.; Mota, C.; Bessa, J.; Dias, J.G.; Cunha, F.; Fangueiro, R. Study of the Filtration Performance of Multilayer and Multiscale Fibrous Structures. Materials 2021, 14, 7147. https://doi.org/10.3390/ma142371471996-194410.3390/ma142371477147https://www.mdpi.com/1996-1944/14/23/7147info: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:RCAAP2023-07-21T12:12:06ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Study of the filtration performance of multilayer and multiscale fibrous structures |
title |
Study of the filtration performance of multilayer and multiscale fibrous structures |
spellingShingle |
Study of the filtration performance of multilayer and multiscale fibrous structures Pais, Vânia Nascimento Electrospinning Nanofibres Filtration Particles retention Multilayer systems Science & Technology |
title_short |
Study of the filtration performance of multilayer and multiscale fibrous structures |
title_full |
Study of the filtration performance of multilayer and multiscale fibrous structures |
title_fullStr |
Study of the filtration performance of multilayer and multiscale fibrous structures |
title_full_unstemmed |
Study of the filtration performance of multilayer and multiscale fibrous structures |
title_sort |
Study of the filtration performance of multilayer and multiscale fibrous structures |
author |
Pais, Vânia Nascimento |
author_facet |
Pais, Vânia Nascimento Mota, Carlos Bessa, João Dias, José Guilherme Cunha, Fernando Eduardo Macedo Fangueiro, Raúl |
author_role |
author |
author2 |
Mota, Carlos Bessa, João Dias, José Guilherme Cunha, Fernando Eduardo Macedo Fangueiro, Raúl |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Pais, Vânia Nascimento Mota, Carlos Bessa, João Dias, José Guilherme Cunha, Fernando Eduardo Macedo Fangueiro, Raúl |
dc.subject.por.fl_str_mv |
Electrospinning Nanofibres Filtration Particles retention Multilayer systems Science & Technology |
topic |
Electrospinning Nanofibres Filtration Particles retention Multilayer systems Science & Technology |
description |
As the incidence of small-diameter particles in the air has increased in recent decades, the development of efficient filtration systems is both urgent and necessary. Nanotechnology, more precisely, electrospun nanofibres, has been identified as a potential solution for this issue, since it allows for the production of membranes with high rates of fibres per unit area, increasing the probability of nanoparticle collision and consequent retention. In the present study, the electrospinning technique of polyamide nanofibre production was optimized with the variation of parameters such as polymer concentration, flow rate and needle diameter. The optimized polyamide nanofibres were combined with polypropylene and polyester microfibres to construct a multilayer and multiscale system with an increased filtration efficiency. We observed that the penetration value of the multilayer system with a PA membrane in the composition, produced for 20 min in the electrospinning, is 2.7 times smaller than the penetration value of the system with the absence of micro and nano fibers. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-24 2021-11-24T00:00:00Z |
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/1822/76712 |
url |
https://hdl.handle.net/1822/76712 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pais, V.; Mota, C.; Bessa, J.; Dias, J.G.; Cunha, F.; Fangueiro, R. Study of the Filtration Performance of Multilayer and Multiscale Fibrous Structures. Materials 2021, 14, 7147. https://doi.org/10.3390/ma14237147 1996-1944 10.3390/ma14237147 7147 https://www.mdpi.com/1996-1944/14/23/7147 |
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 |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
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) |
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repository.mail.fl_str_mv |
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1777303703908253696 |