PU/lignocellulosic composites produced from recycled raw materials

Detalhes bibliográficos
Autor(a) principal: Gama, Nuno
Data de Publicação: 2022
Outros Autores: Godinho, Bruno, Barros-Timmons, Ana, Ferreira, Artur
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/36397
Resumo: Lignocellulosic composites are biodegradable, have low cost, neutrality to CO2 emission, easily processed, easily available and pause no health risks, therefore these materials have been the subject of an increase of interest. In addition, there is a continuous demand of materials obtained from renewable resources and waste recycling. In that sense, in this study polyurethane (PU) residues were mixed with residues of cork and pine (up to 70 wt/wt) to produce 100% recycled composites. Cork is well known to be a light and a thermal insulator material, so the addition of cork granulates decreased both density (circa 51%) and thermal conductivity (circa 61%) of the composites. In turn, pine fibers are hydrophilic and have cylindrical shapes, thus their presence increased the water absorption and improved the mechanical properties of the composites. From the results, these composites proved to be suitable to be used as structure and thermal insulation materials with the advantage of being produced from 100% recycled raw-materials.
id RCAP_277fbe0767ef78de3f1c3b18c6586b0e
oai_identifier_str oai:ria.ua.pt:10773/36397
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling PU/lignocellulosic composites produced from recycled raw materialsCompositesCorkPine fbersRecycled polyurethanePolymer compositesLignocellulosic composites are biodegradable, have low cost, neutrality to CO2 emission, easily processed, easily available and pause no health risks, therefore these materials have been the subject of an increase of interest. In addition, there is a continuous demand of materials obtained from renewable resources and waste recycling. In that sense, in this study polyurethane (PU) residues were mixed with residues of cork and pine (up to 70 wt/wt) to produce 100% recycled composites. Cork is well known to be a light and a thermal insulator material, so the addition of cork granulates decreased both density (circa 51%) and thermal conductivity (circa 61%) of the composites. In turn, pine fibers are hydrophilic and have cylindrical shapes, thus their presence increased the water absorption and improved the mechanical properties of the composites. From the results, these composites proved to be suitable to be used as structure and thermal insulation materials with the advantage of being produced from 100% recycled raw-materials.Springer2023-02-24T15:08:30Z2022-01-01T00:00:00Z2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/36397eng1566-254310.1007/s10924-021-02191-6Gama, NunoGodinho, BrunoBarros-Timmons, AnaFerreira, Arturinfo: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:RCAAP2024-02-22T12:09:56Zoai:ria.ua.pt:10773/36397Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:07.635824Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv PU/lignocellulosic composites produced from recycled raw materials
title PU/lignocellulosic composites produced from recycled raw materials
spellingShingle PU/lignocellulosic composites produced from recycled raw materials
Gama, Nuno
Composites
Cork
Pine fbers
Recycled polyurethane
Polymer composites
title_short PU/lignocellulosic composites produced from recycled raw materials
title_full PU/lignocellulosic composites produced from recycled raw materials
title_fullStr PU/lignocellulosic composites produced from recycled raw materials
title_full_unstemmed PU/lignocellulosic composites produced from recycled raw materials
title_sort PU/lignocellulosic composites produced from recycled raw materials
author Gama, Nuno
author_facet Gama, Nuno
Godinho, Bruno
Barros-Timmons, Ana
Ferreira, Artur
author_role author
author2 Godinho, Bruno
Barros-Timmons, Ana
Ferreira, Artur
author2_role author
author
author
dc.contributor.author.fl_str_mv Gama, Nuno
Godinho, Bruno
Barros-Timmons, Ana
Ferreira, Artur
dc.subject.por.fl_str_mv Composites
Cork
Pine fbers
Recycled polyurethane
Polymer composites
topic Composites
Cork
Pine fbers
Recycled polyurethane
Polymer composites
description Lignocellulosic composites are biodegradable, have low cost, neutrality to CO2 emission, easily processed, easily available and pause no health risks, therefore these materials have been the subject of an increase of interest. In addition, there is a continuous demand of materials obtained from renewable resources and waste recycling. In that sense, in this study polyurethane (PU) residues were mixed with residues of cork and pine (up to 70 wt/wt) to produce 100% recycled composites. Cork is well known to be a light and a thermal insulator material, so the addition of cork granulates decreased both density (circa 51%) and thermal conductivity (circa 61%) of the composites. In turn, pine fibers are hydrophilic and have cylindrical shapes, thus their presence increased the water absorption and improved the mechanical properties of the composites. From the results, these composites proved to be suitable to be used as structure and thermal insulation materials with the advantage of being produced from 100% recycled raw-materials.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01T00:00:00Z
2022
2023-02-24T15:08:30Z
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://hdl.handle.net/10773/36397
url http://hdl.handle.net/10773/36397
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1566-2543
10.1007/s10924-021-02191-6
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 Springer
publisher.none.fl_str_mv Springer
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 Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799137726552866816