The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation

Detalhes bibliográficos
Autor(a) principal: Caraschi, José Claudio
Data de Publicação: 2008
Outros Autores: Ramos, Uriá Manzolli, Leão, ALcides Lopes
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2475
Resumo: Composites made of Polyhydroxybutyrate (PHB) and wood flour were prepared and evaluated by this study to obtain biodegradable and greater environmental degradation materials. PHB is a thermoplastic polyester completely biodegradable produced by bacteria. Composites prepared by PHB and the wood flour in ratios of 10 to 40% of mass, prepared by extrusion and injection molding technique, were evaluated regarding the water absorption, dimensional stability and behaviour toward some chemical reagents. The results showed that the wood flour could be used as an excellent reinforcing material for some specific composite application, mainly in biodegradable products. And they are also able to satisfy both the economical and ecological interests.
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spelling The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradationCompósitos biodegradáveis de polihidroxibutirato (PHB) reforçado com farinha de madeira: propriedades e degradaçãocompósitosPHBfarinha de madeirabiodegradaçãoabsorção de umidaderesistência química1.06.00.00-0 QuímicaComposites made of Polyhydroxybutyrate (PHB) and wood flour were prepared and evaluated by this study to obtain biodegradable and greater environmental degradation materials. PHB is a thermoplastic polyester completely biodegradable produced by bacteria. Composites prepared by PHB and the wood flour in ratios of 10 to 40% of mass, prepared by extrusion and injection molding technique, were evaluated regarding the water absorption, dimensional stability and behaviour toward some chemical reagents. The results showed that the wood flour could be used as an excellent reinforcing material for some specific composite application, mainly in biodegradable products. And they are also able to satisfy both the economical and ecological interests.O objetivo deste trabalho foi preparar e avaliar compósitos poliméricos mais compatíveis com o ambiente, ou seja, a obtenção de materiais que sejam biodegradáveis e que apresentem uma maior velocidade de degradação no ambiente. Os compósitos foram preparados a partir do plástico biodegradável polihidroxibutirato (PHB) com e sem reforço de farinha de madeira, um resíduo agroindustrial, nas proporções de 10% a 40% em massa, pelo processo de extrusão e moldagem por injeção. As amostras foram avaliadas quanto à estabilidade dimensional, à absorção de água, à resistência química e à degradação natural em cinco diferentes situações ambientais, por diversos períodos de tempo. Os resultados obtidos indicaram que todas as amostras sofreram degradações evidenciadas pela perda de massa e pela descoloração em todas as situações avaliadas, e que a utilização de farinha de madeira resultou em materiais com menor resistência química e maiores taxa de absorção de umidade e velocidade de degradação no ambiente.Universidade Estadual De Maringá2008-04-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/247510.4025/actascitechnol.v24i0.2475Acta Scientiarum. Technology; Vol 24 (2002); 1609-1614Acta Scientiarum. Technology; v. 24 (2002); 1609-16141806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2475/1555Caraschi, José ClaudioRamos, Uriá ManzolliLeão, ALcides Lopesinfo:eu-repo/semantics/openAccess2024-05-17T13:02:44Zoai:periodicos.uem.br/ojs:article/2475Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:44Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
Compósitos biodegradáveis de polihidroxibutirato (PHB) reforçado com farinha de madeira: propriedades e degradação
title The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
spellingShingle The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
Caraschi, José Claudio
compósitos
PHB
farinha de madeira
biodegradação
absorção de umidade
resistência química
1.06.00.00-0 Química
title_short The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
title_full The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
title_fullStr The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
title_full_unstemmed The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
title_sort The biodegradable composites of Polyhydroxybutyrate (phb) reinforced by wood flour: properties and degradation
author Caraschi, José Claudio
author_facet Caraschi, José Claudio
Ramos, Uriá Manzolli
Leão, ALcides Lopes
author_role author
author2 Ramos, Uriá Manzolli
Leão, ALcides Lopes
author2_role author
author
dc.contributor.author.fl_str_mv Caraschi, José Claudio
Ramos, Uriá Manzolli
Leão, ALcides Lopes
dc.subject.por.fl_str_mv compósitos
PHB
farinha de madeira
biodegradação
absorção de umidade
resistência química
1.06.00.00-0 Química
topic compósitos
PHB
farinha de madeira
biodegradação
absorção de umidade
resistência química
1.06.00.00-0 Química
description Composites made of Polyhydroxybutyrate (PHB) and wood flour were prepared and evaluated by this study to obtain biodegradable and greater environmental degradation materials. PHB is a thermoplastic polyester completely biodegradable produced by bacteria. Composites prepared by PHB and the wood flour in ratios of 10 to 40% of mass, prepared by extrusion and injection molding technique, were evaluated regarding the water absorption, dimensional stability and behaviour toward some chemical reagents. The results showed that the wood flour could be used as an excellent reinforcing material for some specific composite application, mainly in biodegradable products. And they are also able to satisfy both the economical and ecological interests.
publishDate 2008
dc.date.none.fl_str_mv 2008-04-22
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2475
10.4025/actascitechnol.v24i0.2475
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2475
identifier_str_mv 10.4025/actascitechnol.v24i0.2475
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2475/1555
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 Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 24 (2002); 1609-1614
Acta Scientiarum. Technology; v. 24 (2002); 1609-1614
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
_version_ 1799315332102356992

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