PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process
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/10.1590/s1517-707620170002.0170 http://hdl.handle.net/11449/179046 |
Resumo: | In this work, nanobiocomposites of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) reinforced with cellulose nanofibrils (CNFs) were produced by electrospinning and solution casting process. CNFs were obtained by sulfuric acid hydrolysis from Imperata brasiliensis fibers. Nanocomposites loaded with 1 (wt. %) of CNFs were prepared using a mixture of solvents chloroform (CHCl3): N, N-dimethylformamide (DMF), in the ratio of 78:22 with 30 h of solubilization. Films by solution casting were obtained in a petri dish, at 50 °C for 1 hour, using drying casting temperature of 153 °C. Mats by electrospinning were obtained with a needle 20×10, drum collector rotation 27 rpm, and working distance of 10 cm. Films and mats were characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and Differential Scanning Calorimetry (DSC). It was possible to conclude that for nanobiocomposites obtained by solution casting, the addition of CNFs did not affect the transparency of the films, but provided a significant increase in the crystallization rate as observed by DSC analysis, while for electrospinning nanobiocomposites a considerable improvement in process increasing electrospinning time and quality of the mats manufactured, were observed. |
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PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning processCellulose nanofibrilsElectrospinningPHBVSolution castingIn this work, nanobiocomposites of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) reinforced with cellulose nanofibrils (CNFs) were produced by electrospinning and solution casting process. CNFs were obtained by sulfuric acid hydrolysis from Imperata brasiliensis fibers. Nanocomposites loaded with 1 (wt. %) of CNFs were prepared using a mixture of solvents chloroform (CHCl3): N, N-dimethylformamide (DMF), in the ratio of 78:22 with 30 h of solubilization. Films by solution casting were obtained in a petri dish, at 50 °C for 1 hour, using drying casting temperature of 153 °C. Mats by electrospinning were obtained with a needle 20×10, drum collector rotation 27 rpm, and working distance of 10 cm. Films and mats were characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and Differential Scanning Calorimetry (DSC). It was possible to conclude that for nanobiocomposites obtained by solution casting, the addition of CNFs did not affect the transparency of the films, but provided a significant increase in the crystallization rate as observed by DSC analysis, while for electrospinning nanobiocomposites a considerable improvement in process increasing electrospinning time and quality of the mats manufactured, were observed.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Unesp - São Paulo State University Departament of Materials and Technology (DMT) Fatigue and Aeronautical Materials GroupUnesp - São Paulo State University Departament of Materials and Technology (DMT) Fatigue and Aeronautical Materials GroupFAPESP: 2011/14153-8Universidade Estadual Paulista (Unesp)Benini, Kelly C.C. de Carvalho [UNESP]Cioffi, Maria Odila Hilário [UNESP]Voorwald, Herman Jacobus Cornelis [UNESP]2018-12-11T17:33:17Z2018-12-11T17:33:17Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1590/s1517-707620170002.0170Revista Materia, v. 22, n. 2, 2017.1517-7076http://hdl.handle.net/11449/17904610.1590/s1517-707620170002.01702-s2.0-850257012632-s2.0-85025701263.pdf6119671014416126Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Materia0,188info:eu-repo/semantics/openAccess2024-07-02T15:04:04Zoai:repositorio.unesp.br:11449/179046Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:08:04.564328Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process |
title |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process |
spellingShingle |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process Benini, Kelly C.C. de Carvalho [UNESP] Cellulose nanofibrils Electrospinning PHBV Solution casting |
title_short |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process |
title_full |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process |
title_fullStr |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process |
title_full_unstemmed |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process |
title_sort |
PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process |
author |
Benini, Kelly C.C. de Carvalho [UNESP] |
author_facet |
Benini, Kelly C.C. de Carvalho [UNESP] Cioffi, Maria Odila Hilário [UNESP] Voorwald, Herman Jacobus Cornelis [UNESP] |
author_role |
author |
author2 |
Cioffi, Maria Odila Hilário [UNESP] Voorwald, Herman Jacobus Cornelis [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Benini, Kelly C.C. de Carvalho [UNESP] Cioffi, Maria Odila Hilário [UNESP] Voorwald, Herman Jacobus Cornelis [UNESP] |
dc.subject.por.fl_str_mv |
Cellulose nanofibrils Electrospinning PHBV Solution casting |
topic |
Cellulose nanofibrils Electrospinning PHBV Solution casting |
description |
In this work, nanobiocomposites of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) reinforced with cellulose nanofibrils (CNFs) were produced by electrospinning and solution casting process. CNFs were obtained by sulfuric acid hydrolysis from Imperata brasiliensis fibers. Nanocomposites loaded with 1 (wt. %) of CNFs were prepared using a mixture of solvents chloroform (CHCl3): N, N-dimethylformamide (DMF), in the ratio of 78:22 with 30 h of solubilization. Films by solution casting were obtained in a petri dish, at 50 °C for 1 hour, using drying casting temperature of 153 °C. Mats by electrospinning were obtained with a needle 20×10, drum collector rotation 27 rpm, and working distance of 10 cm. Films and mats were characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and Differential Scanning Calorimetry (DSC). It was possible to conclude that for nanobiocomposites obtained by solution casting, the addition of CNFs did not affect the transparency of the films, but provided a significant increase in the crystallization rate as observed by DSC analysis, while for electrospinning nanobiocomposites a considerable improvement in process increasing electrospinning time and quality of the mats manufactured, were observed. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-12-11T17:33:17Z 2018-12-11T17:33:17Z |
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/10.1590/s1517-707620170002.0170 Revista Materia, v. 22, n. 2, 2017. 1517-7076 http://hdl.handle.net/11449/179046 10.1590/s1517-707620170002.0170 2-s2.0-85025701263 2-s2.0-85025701263.pdf 6119671014416126 |
url |
http://dx.doi.org/10.1590/s1517-707620170002.0170 http://hdl.handle.net/11449/179046 |
identifier_str_mv |
Revista Materia, v. 22, n. 2, 2017. 1517-7076 10.1590/s1517-707620170002.0170 2-s2.0-85025701263 2-s2.0-85025701263.pdf 6119671014416126 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Materia 0,188 |
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.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_ |
1808129163526144000 |