Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://revistapolimeros.org.br/doi/10.4322/polimeros.2014.054 http://hdl.handle.net/11449/130142 |
Resumo: | Biodegradable polymers are starting to be introduced as raw materials in the food-packaging market. Nevertheless, their price is very high. Starch, a fully biodegradable and bioderived polymer is a very interesting alternative due to its very low price. However, the use of starch as the polymer matrix for the production of rigid food packaging, such as trays, is limited due to its poor mechanical properties, high hidrophilicity and high density. This work presents two strategies to overcome the poor mechanical properties of starch. First, the plasticization of starch with several amounts of glycerol to produce thermoplastic starch (TPS) and second, the production of biocomposites by reinforcing TPS with promising fibers, such as barley straw and grape waste. The mechanical properties obtained are compared with the values predicted by models used in the field of composites; law of mixtures, Kerner-Nielsen and Halpin-Tsai. To evaluate if the materials developed are suitable for the production of food-packaging trays, the TPS-based materials with better mechanical properties were compared with commercial grades of oil-based polymers, polypropylene (PP) and polyethylene-terphthalate (PET), and a biodegradable polymer, polylactic acid (PLA). |
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Repositório Institucional da UNESP |
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Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcementBiodegradableStarchThermoplastic starchBiocompositesFood packagingNatural fibersBarleyGrapeBiodegradable polymers are starting to be introduced as raw materials in the food-packaging market. Nevertheless, their price is very high. Starch, a fully biodegradable and bioderived polymer is a very interesting alternative due to its very low price. However, the use of starch as the polymer matrix for the production of rigid food packaging, such as trays, is limited due to its poor mechanical properties, high hidrophilicity and high density. This work presents two strategies to overcome the poor mechanical properties of starch. First, the plasticization of starch with several amounts of glycerol to produce thermoplastic starch (TPS) and second, the production of biocomposites by reinforcing TPS with promising fibers, such as barley straw and grape waste. The mechanical properties obtained are compared with the values predicted by models used in the field of composites; law of mixtures, Kerner-Nielsen and Halpin-Tsai. To evaluate if the materials developed are suitable for the production of food-packaging trays, the TPS-based materials with better mechanical properties were compared with commercial grades of oil-based polymers, polypropylene (PP) and polyethylene-terphthalate (PET), and a biodegradable polymer, polylactic acid (PLA).University of Valladolid, Department of Condensed Matter PhysicsUniversitat Politècnica de Catalunya, Department of Textile and Paper EngineeringUniversidade Estadual Paulista, Departamento de Física, Química e Biologia, Faculdade de Ciências e Tecnologia de Presidente PrudenteAssoc Brasil PolimerosUniversity of ValladolidUniversidade Estadual Paulista (Unesp)Universitat Politècnica de CatalunyaLopez-Gil, AlbertoRodriguez-Perez, Miguel ÁngelDe Saja, José AntonioBellucci, Felipe Silva [UNESP]Ardanuy, Monica2015-11-03T15:29:36Z2015-11-03T15:29:36Z2014-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article36-42application/pdfhttp://revistapolimeros.org.br/doi/10.4322/polimeros.2014.054Polimeros Ciência E Tecnologia. Sao Carlos: Assoc Brasil Polimeros, v. 24, p. 36-42, 2014.0104-1428http://hdl.handle.net/11449/13014210.4322/polimeros.2014.054WOS:000339466000008WOS000339466000008.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPolimeros Ciência E Tecnologia0.7000,244info:eu-repo/semantics/openAccess2024-06-19T12:44:31Zoai:repositorio.unesp.br:11449/130142Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:47:13.891232Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement |
title |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement |
spellingShingle |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement Lopez-Gil, Alberto Biodegradable Starch Thermoplastic starch Biocomposites Food packaging Natural fibers Barley Grape |
title_short |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement |
title_full |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement |
title_fullStr |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement |
title_full_unstemmed |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement |
title_sort |
Strategies to improve the mechanical properties of starch-based materials: plasticization and natural fibers reinforcement |
author |
Lopez-Gil, Alberto |
author_facet |
Lopez-Gil, Alberto Rodriguez-Perez, Miguel Ángel De Saja, José Antonio Bellucci, Felipe Silva [UNESP] Ardanuy, Monica |
author_role |
author |
author2 |
Rodriguez-Perez, Miguel Ángel De Saja, José Antonio Bellucci, Felipe Silva [UNESP] Ardanuy, Monica |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
University of Valladolid Universidade Estadual Paulista (Unesp) Universitat Politècnica de Catalunya |
dc.contributor.author.fl_str_mv |
Lopez-Gil, Alberto Rodriguez-Perez, Miguel Ángel De Saja, José Antonio Bellucci, Felipe Silva [UNESP] Ardanuy, Monica |
dc.subject.por.fl_str_mv |
Biodegradable Starch Thermoplastic starch Biocomposites Food packaging Natural fibers Barley Grape |
topic |
Biodegradable Starch Thermoplastic starch Biocomposites Food packaging Natural fibers Barley Grape |
description |
Biodegradable polymers are starting to be introduced as raw materials in the food-packaging market. Nevertheless, their price is very high. Starch, a fully biodegradable and bioderived polymer is a very interesting alternative due to its very low price. However, the use of starch as the polymer matrix for the production of rigid food packaging, such as trays, is limited due to its poor mechanical properties, high hidrophilicity and high density. This work presents two strategies to overcome the poor mechanical properties of starch. First, the plasticization of starch with several amounts of glycerol to produce thermoplastic starch (TPS) and second, the production of biocomposites by reinforcing TPS with promising fibers, such as barley straw and grape waste. The mechanical properties obtained are compared with the values predicted by models used in the field of composites; law of mixtures, Kerner-Nielsen and Halpin-Tsai. To evaluate if the materials developed are suitable for the production of food-packaging trays, the TPS-based materials with better mechanical properties were compared with commercial grades of oil-based polymers, polypropylene (PP) and polyethylene-terphthalate (PET), and a biodegradable polymer, polylactic acid (PLA). |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07-01 2015-11-03T15:29:36Z 2015-11-03T15:29:36Z |
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://revistapolimeros.org.br/doi/10.4322/polimeros.2014.054 Polimeros Ciência E Tecnologia. Sao Carlos: Assoc Brasil Polimeros, v. 24, p. 36-42, 2014. 0104-1428 http://hdl.handle.net/11449/130142 10.4322/polimeros.2014.054 WOS:000339466000008 WOS000339466000008.pdf |
url |
http://revistapolimeros.org.br/doi/10.4322/polimeros.2014.054 http://hdl.handle.net/11449/130142 |
identifier_str_mv |
Polimeros Ciência E Tecnologia. Sao Carlos: Assoc Brasil Polimeros, v. 24, p. 36-42, 2014. 0104-1428 10.4322/polimeros.2014.054 WOS:000339466000008 WOS000339466000008.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Polimeros Ciência E Tecnologia 0.700 0,244 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
36-42 application/pdf |
dc.publisher.none.fl_str_mv |
Assoc Brasil Polimeros |
publisher.none.fl_str_mv |
Assoc Brasil Polimeros |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808128858194444288 |