Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications

Detalhes bibliográficos
Autor(a) principal: Nascimento, Maria Carolina Burgos Costa do
Data de Publicação: 2017
Outros Autores: Carvalho, Ana Cláudia Medeiros de, Ferreira, Evans Paiva da Costa, Delmonte, Maurício Roberto Bomio, Melo, José Daniel Diniz, Barbosa, Ana Paula Cysne
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/33101
Resumo: Poly(urea-formaldehyde) (PUF) microcapsules filled with dicyclopentadiene (DCPD) were prepared by in situ polymerisation and the effect of synthesis parameters, such as pH of the solution and agitation rate, on microcapsules size and shell thickness was evaluated. Scanning electron microscopy (SEM) and Fourier transform infra-red spectroscopy (FTIR) were performed. Adjusted pH conditions (pH 1⁄4 3.5) and agitation rate (1350 RPM) were found using a design of experiments (DOE). SEM results indicated that microcapsule size was directly affected by agitation rate, whereas shell thickness was mostly affected by pH. After obtaining adjusted synthesis conditions, microcapsules presenting mean size of 60 mm and mean shell thickness of 4 mm were embedded in an epoxy matrix for evaluating the self-healing effect. FTIR and SEM analyses in damaged samples suggested that a healing agent was delivered to the crack location
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spelling Nascimento, Maria Carolina Burgos Costa doCarvalho, Ana Cláudia Medeiros deFerreira, Evans Paiva da CostaDelmonte, Maurício Roberto BomioMelo, José Daniel DinizBarbosa, Ana Paula Cysne2021-08-11T17:44:57Z2021-08-11T17:44:57Z2017-07-05RÊGO, José Kaio Max Alves do; NASCIMENTO, José Heriberto Oliveira do; AGRAWAL, Pankaj; MÉLO, Tomás Jeferson Alves; COSTA, Maria Carolina Burgos; ITO, Edson Noriyuki. Influence of amine groups in the chemical structure of photochromic dyes on the rheological and mechanical properties of poly(methyl methacrylate) (PMMA). Dyes And Pigments, [S.L.], v. 142, p. 350-357, jul. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0143720816304053?via%3Dihub. Acesso em: 01 mar. 2021. http://dx.doi.org/10.1016/j.dyepig.2017.03.060.0265-20481464-5246https://repositorio.ufrn.br/handle/123456789/3310110.1080/02652048.2019.1638462Taylor and FrancisAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessMicrocapsulesIn situ polymerisationPoly(urea-formaldehyde)Factorial designSelf-healingInfluence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applicationsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePoly(urea-formaldehyde) (PUF) microcapsules filled with dicyclopentadiene (DCPD) were prepared by in situ polymerisation and the effect of synthesis parameters, such as pH of the solution and agitation rate, on microcapsules size and shell thickness was evaluated. Scanning electron microscopy (SEM) and Fourier transform infra-red spectroscopy (FTIR) were performed. Adjusted pH conditions (pH 1⁄4 3.5) and agitation rate (1350 RPM) were found using a design of experiments (DOE). SEM results indicated that microcapsule size was directly affected by agitation rate, whereas shell thickness was mostly affected by pH. After obtaining adjusted synthesis conditions, microcapsules presenting mean size of 60 mm and mean shell thickness of 4 mm were embedded in an epoxy matrix for evaluating the self-healing effect. FTIR and SEM analyses in damaged samples suggested that a healing agent was delivered to the crack locationengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALInfluenceSynthesisParameters_NASCIMENTO_2019.pdfInfluenceSynthesisParameters_NASCIMENTO_2019.pdfapplication/pdf3093701https://repositorio.ufrn.br/bitstream/123456789/33101/1/InfluenceSynthesisParameters_NASCIMENTO_2019.pdfe00648824a0f41ffbb0bd35bdc32526fMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/33101/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/33101/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53123456789/331012021-08-11 14:44:58.6oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-08-11T17:44:58Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
title Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
spellingShingle Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
Nascimento, Maria Carolina Burgos Costa do
Microcapsules
In situ polymerisation
Poly(urea-formaldehyde)
Factorial design
Self-healing
title_short Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
title_full Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
title_fullStr Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
title_full_unstemmed Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
title_sort Influence of synthesis parameters on properties and characteristics of poly (urea-formaldehyde) microcapsules for self-healing applications
author Nascimento, Maria Carolina Burgos Costa do
author_facet Nascimento, Maria Carolina Burgos Costa do
Carvalho, Ana Cláudia Medeiros de
Ferreira, Evans Paiva da Costa
Delmonte, Maurício Roberto Bomio
Melo, José Daniel Diniz
Barbosa, Ana Paula Cysne
author_role author
author2 Carvalho, Ana Cláudia Medeiros de
Ferreira, Evans Paiva da Costa
Delmonte, Maurício Roberto Bomio
Melo, José Daniel Diniz
Barbosa, Ana Paula Cysne
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Nascimento, Maria Carolina Burgos Costa do
Carvalho, Ana Cláudia Medeiros de
Ferreira, Evans Paiva da Costa
Delmonte, Maurício Roberto Bomio
Melo, José Daniel Diniz
Barbosa, Ana Paula Cysne
dc.subject.por.fl_str_mv Microcapsules
In situ polymerisation
Poly(urea-formaldehyde)
Factorial design
Self-healing
topic Microcapsules
In situ polymerisation
Poly(urea-formaldehyde)
Factorial design
Self-healing
description Poly(urea-formaldehyde) (PUF) microcapsules filled with dicyclopentadiene (DCPD) were prepared by in situ polymerisation and the effect of synthesis parameters, such as pH of the solution and agitation rate, on microcapsules size and shell thickness was evaluated. Scanning electron microscopy (SEM) and Fourier transform infra-red spectroscopy (FTIR) were performed. Adjusted pH conditions (pH 1⁄4 3.5) and agitation rate (1350 RPM) were found using a design of experiments (DOE). SEM results indicated that microcapsule size was directly affected by agitation rate, whereas shell thickness was mostly affected by pH. After obtaining adjusted synthesis conditions, microcapsules presenting mean size of 60 mm and mean shell thickness of 4 mm were embedded in an epoxy matrix for evaluating the self-healing effect. FTIR and SEM analyses in damaged samples suggested that a healing agent was delivered to the crack location
publishDate 2017
dc.date.issued.fl_str_mv 2017-07-05
dc.date.accessioned.fl_str_mv 2021-08-11T17:44:57Z
dc.date.available.fl_str_mv 2021-08-11T17:44:57Z
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.citation.fl_str_mv RÊGO, José Kaio Max Alves do; NASCIMENTO, José Heriberto Oliveira do; AGRAWAL, Pankaj; MÉLO, Tomás Jeferson Alves; COSTA, Maria Carolina Burgos; ITO, Edson Noriyuki. Influence of amine groups in the chemical structure of photochromic dyes on the rheological and mechanical properties of poly(methyl methacrylate) (PMMA). Dyes And Pigments, [S.L.], v. 142, p. 350-357, jul. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0143720816304053?via%3Dihub. Acesso em: 01 mar. 2021. http://dx.doi.org/10.1016/j.dyepig.2017.03.060.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/33101
dc.identifier.issn.none.fl_str_mv 0265-2048
1464-5246
dc.identifier.doi.none.fl_str_mv 10.1080/02652048.2019.1638462
identifier_str_mv RÊGO, José Kaio Max Alves do; NASCIMENTO, José Heriberto Oliveira do; AGRAWAL, Pankaj; MÉLO, Tomás Jeferson Alves; COSTA, Maria Carolina Burgos; ITO, Edson Noriyuki. Influence of amine groups in the chemical structure of photochromic dyes on the rheological and mechanical properties of poly(methyl methacrylate) (PMMA). Dyes And Pigments, [S.L.], v. 142, p. 350-357, jul. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0143720816304053?via%3Dihub. Acesso em: 01 mar. 2021. http://dx.doi.org/10.1016/j.dyepig.2017.03.060.
0265-2048
1464-5246
10.1080/02652048.2019.1638462
url https://repositorio.ufrn.br/handle/123456789/33101
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Taylor and Francis
publisher.none.fl_str_mv Taylor and Francis
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