Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives

Detalhes bibliográficos
Autor(a) principal: Oliveira, Marina Resende Ribeiro de
Data de Publicação: 2021
Outros Autores: Brito, Flávia Maria Silva, Villela, Luciana Silva, Mendes, Lourival Marin, Guimarães Júnior, José Benedito
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/49289
Resumo: The objective of this research was to evaluate the best type and adequate content of adhesive in low density particleboards produced with corn cob, in addition to the chemical analysis of the particles. The adhesives used were urea-formaldehyde (UF) and phenol-formaldehyde (PF) distributed in three levels (6, 9 and 12%) on the dry mass of the particles and the nominal density was 0.60 g.cm-3. Regarding the water absorption and swelling properties, no significant differences were found between treatments. The mean value calculated for the IE 24 h was 37.07%, being above the minimum limit stipulated by the standard. The modulus of rupture (MOR) and modulus of elasticity (MOE), were influenced by the tested factors. All particleboards met the requirements of the standard norm. For internal adhesion there was a significant effect only for the type of adhesive factor, with the particleboards produced with PF showing the highest means. For the compression property there was no effect of the factors tested. In general, the dimensional stability of the particleboards was below the minimum required by the standard, but the mechanical properties met all requirements.
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spelling Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesivesPropriedades físico-mecânicas de painéis produzidos com partículas de sabugo de milho e diferentes tipos e teores de adesivosPropiedades físico-mecánicas de paneles producidos con partículas de mazorca de maíz y diferentes tipos y contenidos de adhesivosChemical analysisPhysical-mechanical propertiesWasteAnálise químicaPropiedades físico-mecânicasResíduosThe objective of this research was to evaluate the best type and adequate content of adhesive in low density particleboards produced with corn cob, in addition to the chemical analysis of the particles. The adhesives used were urea-formaldehyde (UF) and phenol-formaldehyde (PF) distributed in three levels (6, 9 and 12%) on the dry mass of the particles and the nominal density was 0.60 g.cm-3. Regarding the water absorption and swelling properties, no significant differences were found between treatments. The mean value calculated for the IE 24 h was 37.07%, being above the minimum limit stipulated by the standard. The modulus of rupture (MOR) and modulus of elasticity (MOE), were influenced by the tested factors. All particleboards met the requirements of the standard norm. For internal adhesion there was a significant effect only for the type of adhesive factor, with the particleboards produced with PF showing the highest means. For the compression property there was no effect of the factors tested. In general, the dimensional stability of the particleboards was below the minimum required by the standard, but the mechanical properties met all requirements.O objetivo desta pesquisa foi avaliar o melhor tipo e teor adequado de adesivo em painéis aglomerados de baixa densidade produzidos com sabugo de milho, além da análise química das partículas. Os adesivos utilizados foram uréia-formaldeído (UF) e fenol-formaldeído (FF) distribuídos em três teores (6, 9 e 12%) sobre a massa seca das partículas e a densidade nominal foi 0,60 g.cm-3. Em relação às propriedades de absorção de água e inchamento, não foram constatadas diferenças significativas entre os tratamentos. O valor médio calculado para o IE 24 h foi 37,07%, acima do limite mínimo estipulado pela norma. O módulo de ruptura (MOR) e o módulo de elasticidade (MOE), foram influenciados pelos fatores testados. Todos os painéis aglomerados atenderam aos requisitos da norma padrão. Para a adesão interna houve efeito significativo apenas para o fator tipo de adesivo, sendo que os painéis produzidos com FF evidenciaram as maiores médias. Para a propriedade de compressão não houve efeito dos fatores testados. De forma geral, a estabilidade dimensional dos painéis ficou abaixo do mínimo requerido pela norma, mas as propriedades mecânicas atenderam a todos os requisitos.Universidade Federal de Itajubá (UNIFEI), Campus Itabira2022-02-14T16:42:17Z2022-02-14T16:42:17Z2021-09-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfOLIVEIRA, M. R. R. de et al. Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives. Research, Society and Development, [S.l.], v. 10, n. 11, p. 1-11, 2021. DOI: 10.33448/rsd-v10i11.19828.http://repositorio.ufla.br/jspui/handle/1/49289Research, Society and Developmentreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessOliveira, Marina Resende Ribeiro deBrito, Flávia Maria SilvaVillela, Luciana SilvaMendes, Lourival MarinGuimarães Júnior, José Beneditoeng2023-05-03T11:43:37Zoai:localhost:1/49289Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-03T11:43:37Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
Propriedades físico-mecânicas de painéis produzidos com partículas de sabugo de milho e diferentes tipos e teores de adesivos
Propiedades físico-mecánicas de paneles producidos con partículas de mazorca de maíz y diferentes tipos y contenidos de adhesivos
title Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
spellingShingle Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
Oliveira, Marina Resende Ribeiro de
Chemical analysis
Physical-mechanical properties
Waste
Análise química
Propiedades físico-mecânicas
Resíduos
title_short Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
title_full Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
title_fullStr Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
title_full_unstemmed Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
title_sort Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives
author Oliveira, Marina Resende Ribeiro de
author_facet Oliveira, Marina Resende Ribeiro de
Brito, Flávia Maria Silva
Villela, Luciana Silva
Mendes, Lourival Marin
Guimarães Júnior, José Benedito
author_role author
author2 Brito, Flávia Maria Silva
Villela, Luciana Silva
Mendes, Lourival Marin
Guimarães Júnior, José Benedito
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Marina Resende Ribeiro de
Brito, Flávia Maria Silva
Villela, Luciana Silva
Mendes, Lourival Marin
Guimarães Júnior, José Benedito
dc.subject.por.fl_str_mv Chemical analysis
Physical-mechanical properties
Waste
Análise química
Propiedades físico-mecânicas
Resíduos
topic Chemical analysis
Physical-mechanical properties
Waste
Análise química
Propiedades físico-mecânicas
Resíduos
description The objective of this research was to evaluate the best type and adequate content of adhesive in low density particleboards produced with corn cob, in addition to the chemical analysis of the particles. The adhesives used were urea-formaldehyde (UF) and phenol-formaldehyde (PF) distributed in three levels (6, 9 and 12%) on the dry mass of the particles and the nominal density was 0.60 g.cm-3. Regarding the water absorption and swelling properties, no significant differences were found between treatments. The mean value calculated for the IE 24 h was 37.07%, being above the minimum limit stipulated by the standard. The modulus of rupture (MOR) and modulus of elasticity (MOE), were influenced by the tested factors. All particleboards met the requirements of the standard norm. For internal adhesion there was a significant effect only for the type of adhesive factor, with the particleboards produced with PF showing the highest means. For the compression property there was no effect of the factors tested. In general, the dimensional stability of the particleboards was below the minimum required by the standard, but the mechanical properties met all requirements.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-09
2022-02-14T16:42:17Z
2022-02-14T16:42:17Z
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 OLIVEIRA, M. R. R. de et al. Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives. Research, Society and Development, [S.l.], v. 10, n. 11, p. 1-11, 2021. DOI: 10.33448/rsd-v10i11.19828.
http://repositorio.ufla.br/jspui/handle/1/49289
identifier_str_mv OLIVEIRA, M. R. R. de et al. Physical-mechanical properties of panels produced with corn cob particles and different types and contents of adhesives. Research, Society and Development, [S.l.], v. 10, n. 11, p. 1-11, 2021. DOI: 10.33448/rsd-v10i11.19828.
url http://repositorio.ufla.br/jspui/handle/1/49289
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Itajubá (UNIFEI), Campus Itabira
publisher.none.fl_str_mv Universidade Federal de Itajubá (UNIFEI), Campus Itabira
dc.source.none.fl_str_mv Research, Society and Development
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_ 1807835186623152128

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