Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding

The high production rate of conventional plastics and their low degradability result in severe environmental problems, such as plastic accumulation and some other related consequences. One alternative to these materials is the production of oil-free bioplastics, based on wastes from the agro-food in...

Descripción completa

Detalles Bibliográficos
Autores: Alonso González, María, Félix Ángel, Manuel, Guerrero Conejo, Antonio Francisco, Romero García, Alberto
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/104652
Acceso en línea:https://hdl.handle.net/11441/104652
https://doi.org/10.3390/polym13030398
Access Level:acceso abierto
Palabra clave:Bioplastics
Rice bran
Injection moulding
Water absorption capacity
id ES_baaefca255da897db85b89ee188187ae
oai_identifier_str oai:idus.us.es:11441/104652
network_acronym_str ES
network_name_str España
repository_id_str
spelling Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection MouldingAlonso González, MaríaFélix Ángel, ManuelGuerrero Conejo, Antonio FranciscoRomero García, AlbertoBioplasticsRice branInjection mouldingWater absorption capacityThe high production rate of conventional plastics and their low degradability result in severe environmental problems, such as plastic accumulation and some other related consequences. One alternative to these materials is the production of oil-free bioplastics, based on wastes from the agro-food industry, which are biodegradable. Not only is rice bran an abundant and non-expensive waste, but it is also attractive due to its high protein and starch content, which can be used as macromolecules for bioplastic production. The objective of this work was to develop rice-bran-based bioplastics by injection moulding. For this purpose, this raw material was mixed with a plasticizer (glycerol), analysing the effect of three mould temperatures (100, 130 and 150 °C) on the mechanical and microstructural properties and water absorption capacity of the final matrices. The obtained results show that rice bran is a suitable raw material for the development of bioplastics whose properties are strongly influenced by the processing conditions. Thus, higher temperatures produce stiffer and more resistant materials (Young’s modulus improves from 12 ± 7 MPa to 23 ± 6 and 33 ± 6 MPa when the temperature increases from 100 to 130 and 150 °C, respectively); however, these materials are highly compact and, consequently, their water absorption capacity diminishes. On the other hand, although lower mould temperatures lead to materials with lower mechanical properties, they exhibit a less compact structure, resulting in enhanced water absorption capacity.Ministerio de Ciencia e Innovación of the Spanish Government and FEDER (UE), grant number RTI2018-097100-B-C21MDPIIngeniería QuímicaTEP229: Tecnología y Diseño de Productos Multicomponentes2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/104652https://doi.org/10.3390/polym13030398reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésPolymers, 13 (3), 398-.RTI2018-097100-B-C21https://www.mdpi.com/2073-4360/13/3/398info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1046522026-06-17T12:51:07Z
dc.title.none.fl_str_mv Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
title Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
spellingShingle Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
Alonso González, María
Bioplastics
Rice bran
Injection moulding
Water absorption capacity
title_short Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
title_full Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
title_fullStr Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
title_full_unstemmed Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
title_sort Effects of Mould Temperature on Rice Bran-Based Bioplastics Obtained by Injection Moulding
dc.creator.none.fl_str_mv Alonso González, María
Félix Ángel, Manuel
Guerrero Conejo, Antonio Francisco
Romero García, Alberto
author Alonso González, María
author_facet Alonso González, María
Félix Ángel, Manuel
Guerrero Conejo, Antonio Francisco
Romero García, Alberto
author_role author
author2 Félix Ángel, Manuel
Guerrero Conejo, Antonio Francisco
Romero García, Alberto
author2_role author
author
author
dc.contributor.none.fl_str_mv Ingeniería Química
TEP229: Tecnología y Diseño de Productos Multicomponentes
dc.subject.none.fl_str_mv Bioplastics
Rice bran
Injection moulding
Water absorption capacity
topic Bioplastics
Rice bran
Injection moulding
Water absorption capacity
description The high production rate of conventional plastics and their low degradability result in severe environmental problems, such as plastic accumulation and some other related consequences. One alternative to these materials is the production of oil-free bioplastics, based on wastes from the agro-food industry, which are biodegradable. Not only is rice bran an abundant and non-expensive waste, but it is also attractive due to its high protein and starch content, which can be used as macromolecules for bioplastic production. The objective of this work was to develop rice-bran-based bioplastics by injection moulding. For this purpose, this raw material was mixed with a plasticizer (glycerol), analysing the effect of three mould temperatures (100, 130 and 150 °C) on the mechanical and microstructural properties and water absorption capacity of the final matrices. The obtained results show that rice bran is a suitable raw material for the development of bioplastics whose properties are strongly influenced by the processing conditions. Thus, higher temperatures produce stiffer and more resistant materials (Young’s modulus improves from 12 ± 7 MPa to 23 ± 6 and 33 ± 6 MPa when the temperature increases from 100 to 130 and 150 °C, respectively); however, these materials are highly compact and, consequently, their water absorption capacity diminishes. On the other hand, although lower mould temperatures lead to materials with lower mechanical properties, they exhibit a less compact structure, resulting in enhanced water absorption capacity.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/104652
https://doi.org/10.3390/polym13030398
url https://hdl.handle.net/11441/104652
https://doi.org/10.3390/polym13030398
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Polymers, 13 (3), 398-.
RTI2018-097100-B-C21
https://www.mdpi.com/2073-4360/13/3/398
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417938912542720
score 15,300719

Similares en LA Referencia