Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment

Detalhes bibliográficos
Autor(a) principal: Talgatti, Maiara
Data de Publicação: 2021
Outros Autores: da Silveira, Amanda Grassmann, Baldin, Talita, Santini, Elio José, Bianchini, Nadia Helena, Mariano, Lilian Gonçalves
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2037
Resumo: The present study aimed to evaluate the modifications of the properties of Eucalyptus cloeziana and E. grandis wood modified under hydrothermal conditions and freezing. Five trees for each species with 20 years old were sampled, and the first 3 m log was sampled from each tree. For each species, 24 specimens of dimensions 2.0 x 2.0 x 30.0 cm were prepared near the bark and close to the pith, totaling 48 specimens. Testes of dynamic flexion, colorimetry and infrared spectroscopy by attenuated total reflectance were performed. The heat treatment methods employed did not impair the mechanical properties of the wood and did not affect their apparent specific mass. The heat treatment in water implied in greater variations of the chemical properties. Possibly, these variation contributed to the color change of the wood.
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spelling Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatmentCaracterização tecnológica da madeira de duas espécies de Eucalyptus submetidas a tratamento hidrotérmico e congelamentoWood propertiesHeat treatmentWood colorPropriedade da madeiraTratamento térmicoColoração da madeiraThe present study aimed to evaluate the modifications of the properties of Eucalyptus cloeziana and E. grandis wood modified under hydrothermal conditions and freezing. Five trees for each species with 20 years old were sampled, and the first 3 m log was sampled from each tree. For each species, 24 specimens of dimensions 2.0 x 2.0 x 30.0 cm were prepared near the bark and close to the pith, totaling 48 specimens. Testes of dynamic flexion, colorimetry and infrared spectroscopy by attenuated total reflectance were performed. The heat treatment methods employed did not impair the mechanical properties of the wood and did not affect their apparent specific mass. The heat treatment in water implied in greater variations of the chemical properties. Possibly, these variation contributed to the color change of the wood.O presente estudo objetivou avaliar possíveis alterações nas propriedades das madeiras de Eucalyptus cloeziana e E. grandis modificadas termicamente sob condições hidrotérmicas e de congelamento. Foram amostradas cinco árvores de cada espécie com 20 anos de idade, sendo retirada de cada árvore a primeira tora de 3 m. Foram confeccionados 12 corpos de prova próximos à casca e 12 próximos à medula para cada espécie, com dimensões de 2,0 x 2,0 x 30,0 cm, totalizando 48 corpos de prova. Foram realizados os ensaios de flexão dinâmica, colorimetria e espectroscopia no infravermelho por reflectância total atenuada. Os métodos de tratamento térmico empregados não prejudicaram as propriedades mecânicas da madeira e não afetaram as suas massas específicas aparentes. O tratamento de aquecimento em água implicou em maiores variações das propriedades químicas da madeira. Essas variações, possivelmente, contribuíram para as mudanças de cor na madeira.Embrapa Florestas2021-12-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/203710.4336/2021.pfb.41e201902037Pesquisa Florestal Brasileira; v. 41 (2021)Pesquisa Florestal Brasileira; Vol. 41 (2021)1983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2037/1651Copyright (c) 2021 Maiara Talgatti, Amanda Grassmann da Silveira, Talita Baldin, Elio José Santini, Nadia Helena Bianchini, Lilian Gonçalves Marianohttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessTalgatti, Maiarada Silveira, Amanda GrassmannBaldin, TalitaSantini, Elio JoséBianchini, Nadia HelenaMariano, Lilian Gonçalves2021-11-18T11:01:58Zoai:pfb.cnpf.embrapa.br/pfb:article/2037Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2021-11-18T11:01:58Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
Caracterização tecnológica da madeira de duas espécies de Eucalyptus submetidas a tratamento hidrotérmico e congelamento
title Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
spellingShingle Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
Talgatti, Maiara
Wood properties
Heat treatment
Wood color
Propriedade da madeira
Tratamento térmico
Coloração da madeira
title_short Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
title_full Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
title_fullStr Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
title_full_unstemmed Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
title_sort Technological characterization of wood from two species of Eucalyptus submitted to hydrothermal and freezing treatment
author Talgatti, Maiara
author_facet Talgatti, Maiara
da Silveira, Amanda Grassmann
Baldin, Talita
Santini, Elio José
Bianchini, Nadia Helena
Mariano, Lilian Gonçalves
author_role author
author2 da Silveira, Amanda Grassmann
Baldin, Talita
Santini, Elio José
Bianchini, Nadia Helena
Mariano, Lilian Gonçalves
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Talgatti, Maiara
da Silveira, Amanda Grassmann
Baldin, Talita
Santini, Elio José
Bianchini, Nadia Helena
Mariano, Lilian Gonçalves
dc.subject.por.fl_str_mv Wood properties
Heat treatment
Wood color
Propriedade da madeira
Tratamento térmico
Coloração da madeira
topic Wood properties
Heat treatment
Wood color
Propriedade da madeira
Tratamento térmico
Coloração da madeira
description The present study aimed to evaluate the modifications of the properties of Eucalyptus cloeziana and E. grandis wood modified under hydrothermal conditions and freezing. Five trees for each species with 20 years old were sampled, and the first 3 m log was sampled from each tree. For each species, 24 specimens of dimensions 2.0 x 2.0 x 30.0 cm were prepared near the bark and close to the pith, totaling 48 specimens. Testes of dynamic flexion, colorimetry and infrared spectroscopy by attenuated total reflectance were performed. The heat treatment methods employed did not impair the mechanical properties of the wood and did not affect their apparent specific mass. The heat treatment in water implied in greater variations of the chemical properties. Possibly, these variation contributed to the color change of the wood.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-21
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2037
10.4336/2021.pfb.41e201902037
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2037
identifier_str_mv 10.4336/2021.pfb.41e201902037
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2037/1651
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 41 (2021)
Pesquisa Florestal Brasileira; Vol. 41 (2021)
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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