Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/78229 |
Resumo: | This research addresses the importance of pine wood sawdust granulometry on the processing of medium-density polyethylene (MDPE)/wood composites by rotational molding and its effects on the morphological, mechanical and aesthetical properties of parts, aiming to contribute for the development of sustainable wood polymer composites (WPC) for rotational molding applications. Pine wood sawdust was sieved (<150, 150, 300, 500, 710, >1000 µm) and analyzed for its physical, morphological and thermal characteristics. Rotational molded parts were produced with matrix/wood ratios from 90/10 to 70/30 wt% considering different wood granulometries. As a natural material, wood changed its color during processing. Granulometries below 500 µm presented better sintering, homogeneity and less part defects. Furthermore, 300–500 µm favored the impact resistance (1316 N), as irregular brick-shaped wood was able to anchor to PE despite the weak interfacial adhesion observed. The increase of wood content from 10 to 30% reduced the impact properties by 40%, as a result of a highly porous structure formed, revealing sintering difficulties during processing. WPC parts of differentiated aesthetics and functionalities were achieved by rotational molding. A clear relationship between wood granulometry and WPC processing, structure and properties was identified. |
id |
RCAP_347746ab4eb5d261204069b01f60cdbb |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/78229 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
|
spelling |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust compositesRotational moldingWood-polymer-compositesWood sawdustPolyethyleneThermal propertiesMorphologyMechanical propertiesScience & TechnologyThis research addresses the importance of pine wood sawdust granulometry on the processing of medium-density polyethylene (MDPE)/wood composites by rotational molding and its effects on the morphological, mechanical and aesthetical properties of parts, aiming to contribute for the development of sustainable wood polymer composites (WPC) for rotational molding applications. Pine wood sawdust was sieved (<150, 150, 300, 500, 710, >1000 µm) and analyzed for its physical, morphological and thermal characteristics. Rotational molded parts were produced with matrix/wood ratios from 90/10 to 70/30 wt% considering different wood granulometries. As a natural material, wood changed its color during processing. Granulometries below 500 µm presented better sintering, homogeneity and less part defects. Furthermore, 300–500 µm favored the impact resistance (1316 N), as irregular brick-shaped wood was able to anchor to PE despite the weak interfacial adhesion observed. The increase of wood content from 10 to 30% reduced the impact properties by 40%, as a result of a highly porous structure formed, revealing sintering difficulties during processing. WPC parts of differentiated aesthetics and functionalities were achieved by rotational molding. A clear relationship between wood granulometry and WPC processing, structure and properties was identified.Financial support of the Project RoTMI-Rotomolding Technology and Materials Innovations (POCI-01-0247-FEDER-33095), cofinanced by the European Regional Development Fund (FEDER) through the Operational Program for Competitiveness and Internationalization (POCI) under the “Portugal 2020” framework; to the Portuguese Foundation for Science and Technology (FCT) through the National Funds References UIDB/05256/2020 and UIDP/05256/2020 provided to IPC.Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoMartins, Carla I.Gil, VitóriaRocha, Sara2022-01-042022-01-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/78229engMartins, C.I.; Gil, V.; Rocha, S. Thermal, Mechanical, Morphological and Aesthetical Properties of Rotational Molding PE/Pine Wood Sawdust Composites. Polymers 2022, 14, 193. https://doi.org/10.3390/polym140101932073-436010.3390/polym14010193193https://www.mdpi.com/2073-4360/14/1/193info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:45:06ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites |
title |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites |
spellingShingle |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites Martins, Carla I. Rotational molding Wood-polymer-composites Wood sawdust Polyethylene Thermal properties Morphology Mechanical properties Science & Technology |
title_short |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites |
title_full |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites |
title_fullStr |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites |
title_full_unstemmed |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites |
title_sort |
Thermal, mechanical, morphological and aesthetical properties of rotational molding PE/pine wood sawdust composites |
author |
Martins, Carla I. |
author_facet |
Martins, Carla I. Gil, Vitória Rocha, Sara |
author_role |
author |
author2 |
Gil, Vitória Rocha, Sara |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Martins, Carla I. Gil, Vitória Rocha, Sara |
dc.subject.por.fl_str_mv |
Rotational molding Wood-polymer-composites Wood sawdust Polyethylene Thermal properties Morphology Mechanical properties Science & Technology |
topic |
Rotational molding Wood-polymer-composites Wood sawdust Polyethylene Thermal properties Morphology Mechanical properties Science & Technology |
description |
This research addresses the importance of pine wood sawdust granulometry on the processing of medium-density polyethylene (MDPE)/wood composites by rotational molding and its effects on the morphological, mechanical and aesthetical properties of parts, aiming to contribute for the development of sustainable wood polymer composites (WPC) for rotational molding applications. Pine wood sawdust was sieved (<150, 150, 300, 500, 710, >1000 µm) and analyzed for its physical, morphological and thermal characteristics. Rotational molded parts were produced with matrix/wood ratios from 90/10 to 70/30 wt% considering different wood granulometries. As a natural material, wood changed its color during processing. Granulometries below 500 µm presented better sintering, homogeneity and less part defects. Furthermore, 300–500 µm favored the impact resistance (1316 N), as irregular brick-shaped wood was able to anchor to PE despite the weak interfacial adhesion observed. The increase of wood content from 10 to 30% reduced the impact properties by 40%, as a result of a highly porous structure formed, revealing sintering difficulties during processing. WPC parts of differentiated aesthetics and functionalities were achieved by rotational molding. A clear relationship between wood granulometry and WPC processing, structure and properties was identified. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-04 2022-01-04T00:00:00Z |
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 |
https://hdl.handle.net/1822/78229 |
url |
https://hdl.handle.net/1822/78229 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Martins, C.I.; Gil, V.; Rocha, S. Thermal, Mechanical, Morphological and Aesthetical Properties of Rotational Molding PE/Pine Wood Sawdust Composites. Polymers 2022, 14, 193. https://doi.org/10.3390/polym14010193 2073-4360 10.3390/polym14010193 193 https://www.mdpi.com/2073-4360/14/1/193 |
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 |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1777303834912096256 |