New biodegradable composites from starch and fibers of the babassu coconut.
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132156 |
Resumo: | This work aimed to obtain thermoplastic starch composites (TPS) derived from starch and fibers of babassu coconut. The (TPS) was prepared with 40% plasticizer (glycerol). The fibers underwent chemical treatment of alkalinization and bleaching. SEM images and infrared spectra showed that wax, lignin, and hemicellulose were removed from the fiber surface. SEM images of TPS starch showed a smooth and uniform surface, whereas images of the TPSWF composite (washed fiber) showed voids between the fiber and the TPS. This phenomenon was not observed in the SEM images of the composites TPSAF (alkalized fiber) and TPSBF (bleached fiber). The tensile strength and elastic modulus of the composites were higher than the pure TPS matrix. Concerning elongation, composites underwent less elongation than TPS. The mechanical properties found for the TPSWF and TPSAF composites do not differ. However, the mechanical properties of the TPSBF composite were better than the properties of the other composites. |
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New biodegradable composites from starch and fibers of the babassu coconut.TPSBabassuCompositesBabaçuFibraAmidoThis work aimed to obtain thermoplastic starch composites (TPS) derived from starch and fibers of babassu coconut. The (TPS) was prepared with 40% plasticizer (glycerol). The fibers underwent chemical treatment of alkalinization and bleaching. SEM images and infrared spectra showed that wax, lignin, and hemicellulose were removed from the fiber surface. SEM images of TPS starch showed a smooth and uniform surface, whereas images of the TPSWF composite (washed fiber) showed voids between the fiber and the TPS. This phenomenon was not observed in the SEM images of the composites TPSAF (alkalized fiber) and TPSBF (bleached fiber). The tensile strength and elastic modulus of the composites were higher than the pure TPS matrix. Concerning elongation, composites underwent less elongation than TPS. The mechanical properties found for the TPSWF and TPSAF composites do not differ. However, the mechanical properties of the TPSBF composite were better than the properties of the other composites.CARLA VERONICA RODARTE DE MOURA, UFPI; DOUGLAS DA CRUZ SOUSA, UFPI; EDMILSON MIRANDA DE MOURA, UFPI; EUGENIO CELSO EMERITO ARAUJO, CPAMN; ILZA MARIA SITTOLIN, CPAMN.MOURA, C. V. R. deSOUSA, D. da C.MOURA, E. M. deARAUJO, E. C. E.SITTOLIN, I. M.2021-06-02T14:01:24Z2021-06-02T14:01:24Z2021-06-022021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePolímeros, v. 31, n. 1, e2021007, 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132156enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2021-06-02T14:01:33Zoai:www.alice.cnptia.embrapa.br:doc/1132156Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-06-02T14:01:33falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-06-02T14:01:33Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
New biodegradable composites from starch and fibers of the babassu coconut. |
title |
New biodegradable composites from starch and fibers of the babassu coconut. |
spellingShingle |
New biodegradable composites from starch and fibers of the babassu coconut. MOURA, C. V. R. de TPS Babassu Composites Babaçu Fibra Amido |
title_short |
New biodegradable composites from starch and fibers of the babassu coconut. |
title_full |
New biodegradable composites from starch and fibers of the babassu coconut. |
title_fullStr |
New biodegradable composites from starch and fibers of the babassu coconut. |
title_full_unstemmed |
New biodegradable composites from starch and fibers of the babassu coconut. |
title_sort |
New biodegradable composites from starch and fibers of the babassu coconut. |
author |
MOURA, C. V. R. de |
author_facet |
MOURA, C. V. R. de SOUSA, D. da C. MOURA, E. M. de ARAUJO, E. C. E. SITTOLIN, I. M. |
author_role |
author |
author2 |
SOUSA, D. da C. MOURA, E. M. de ARAUJO, E. C. E. SITTOLIN, I. M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
CARLA VERONICA RODARTE DE MOURA, UFPI; DOUGLAS DA CRUZ SOUSA, UFPI; EDMILSON MIRANDA DE MOURA, UFPI; EUGENIO CELSO EMERITO ARAUJO, CPAMN; ILZA MARIA SITTOLIN, CPAMN. |
dc.contributor.author.fl_str_mv |
MOURA, C. V. R. de SOUSA, D. da C. MOURA, E. M. de ARAUJO, E. C. E. SITTOLIN, I. M. |
dc.subject.por.fl_str_mv |
TPS Babassu Composites Babaçu Fibra Amido |
topic |
TPS Babassu Composites Babaçu Fibra Amido |
description |
This work aimed to obtain thermoplastic starch composites (TPS) derived from starch and fibers of babassu coconut. The (TPS) was prepared with 40% plasticizer (glycerol). The fibers underwent chemical treatment of alkalinization and bleaching. SEM images and infrared spectra showed that wax, lignin, and hemicellulose were removed from the fiber surface. SEM images of TPS starch showed a smooth and uniform surface, whereas images of the TPSWF composite (washed fiber) showed voids between the fiber and the TPS. This phenomenon was not observed in the SEM images of the composites TPSAF (alkalized fiber) and TPSBF (bleached fiber). The tensile strength and elastic modulus of the composites were higher than the pure TPS matrix. Concerning elongation, composites underwent less elongation than TPS. The mechanical properties found for the TPSWF and TPSAF composites do not differ. However, the mechanical properties of the TPSBF composite were better than the properties of the other composites. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-02T14:01:24Z 2021-06-02T14:01:24Z 2021-06-02 2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Polímeros, v. 31, n. 1, e2021007, 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132156 |
identifier_str_mv |
Polímeros, v. 31, n. 1, e2021007, 2021. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132156 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503506005065728 |