Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/38048 |
Resumo: | The objective of the present study was to evaluate lignocellulosic particles from sub-products of the coffee industry (coffee parchment - CP and husk - CH) into polyhydroxybutyrate (PHB) as a promising reinforcing filler in the biocomposites. The effects of type (CP or CH) and content (neat, 10% and 20%) of coffee wastes on the thermal, mechanical, microstructural and physical properties of the ensuing composites were evaluated. Thermal stability of the composites was improved by the coffee residues at different contents, while degree of crystallinity was decreased with the inclusion of CP. The addition of 10% of CP has not influenced significantly the tensile strength (TS) and Izod strength (IS), in relation to the neat PHB. Tensile strength (TS), MOE and Izod strength (IS) of the composites have increased significantly with the inclusion of 20% of CP. The increase in the content of coffee waste particles increased the water absorption of the composites. |
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Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based compositesCoffee residuesBiopolymerBiocompositeExtrusionInjectionThe objective of the present study was to evaluate lignocellulosic particles from sub-products of the coffee industry (coffee parchment - CP and husk - CH) into polyhydroxybutyrate (PHB) as a promising reinforcing filler in the biocomposites. The effects of type (CP or CH) and content (neat, 10% and 20%) of coffee wastes on the thermal, mechanical, microstructural and physical properties of the ensuing composites were evaluated. Thermal stability of the composites was improved by the coffee residues at different contents, while degree of crystallinity was decreased with the inclusion of CP. The addition of 10% of CP has not influenced significantly the tensile strength (TS) and Izod strength (IS), in relation to the neat PHB. Tensile strength (TS), MOE and Izod strength (IS) of the composites have increased significantly with the inclusion of 20% of CP. The increase in the content of coffee waste particles increased the water absorption of the composites.2019-12-06T11:43:29Z2019-12-06T11:43:29Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfREIS, K. C. et al. Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites. Materials Research, São Carlos, v. 18, n. 3, May/June 2015.http://repositorio.ufla.br/jspui/handle/1/38048Materials Researchreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessReis, Kelen CristinaPereira, LucinéiaMelo, Isabel Cristina Nogueira AlvesMarconcini, José ManoelTrugilho, Paulo FernandoTonoli, Gustavo Henrique Denzineng2019-12-06T11:43:59Zoai:localhost:1/38048Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-12-06T11:43:59Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites |
title |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites |
spellingShingle |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites Reis, Kelen Cristina Coffee residues Biopolymer Biocomposite Extrusion Injection |
title_short |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites |
title_full |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites |
title_fullStr |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites |
title_full_unstemmed |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites |
title_sort |
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites |
author |
Reis, Kelen Cristina |
author_facet |
Reis, Kelen Cristina Pereira, Lucinéia Melo, Isabel Cristina Nogueira Alves Marconcini, José Manoel Trugilho, Paulo Fernando Tonoli, Gustavo Henrique Denzin |
author_role |
author |
author2 |
Pereira, Lucinéia Melo, Isabel Cristina Nogueira Alves Marconcini, José Manoel Trugilho, Paulo Fernando Tonoli, Gustavo Henrique Denzin |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Reis, Kelen Cristina Pereira, Lucinéia Melo, Isabel Cristina Nogueira Alves Marconcini, José Manoel Trugilho, Paulo Fernando Tonoli, Gustavo Henrique Denzin |
dc.subject.por.fl_str_mv |
Coffee residues Biopolymer Biocomposite Extrusion Injection |
topic |
Coffee residues Biopolymer Biocomposite Extrusion Injection |
description |
The objective of the present study was to evaluate lignocellulosic particles from sub-products of the coffee industry (coffee parchment - CP and husk - CH) into polyhydroxybutyrate (PHB) as a promising reinforcing filler in the biocomposites. The effects of type (CP or CH) and content (neat, 10% and 20%) of coffee wastes on the thermal, mechanical, microstructural and physical properties of the ensuing composites were evaluated. Thermal stability of the composites was improved by the coffee residues at different contents, while degree of crystallinity was decreased with the inclusion of CP. The addition of 10% of CP has not influenced significantly the tensile strength (TS) and Izod strength (IS), in relation to the neat PHB. Tensile strength (TS), MOE and Izod strength (IS) of the composites have increased significantly with the inclusion of 20% of CP. The increase in the content of coffee waste particles increased the water absorption of the composites. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2019-12-06T11:43:29Z 2019-12-06T11:43:29Z |
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 |
REIS, K. C. et al. Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites. Materials Research, São Carlos, v. 18, n. 3, May/June 2015. http://repositorio.ufla.br/jspui/handle/1/38048 |
identifier_str_mv |
REIS, K. C. et al. Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites. Materials Research, São Carlos, v. 18, n. 3, May/June 2015. |
url |
http://repositorio.ufla.br/jspui/handle/1/38048 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Materials Research reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835175148584960 |