Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis

Detalhes bibliográficos
Autor(a) principal: Calonego,Fred Willians
Data de Publicação: 2014
Outros Autores: Severo,Elias Taylor Durgante, Latorraca,João Vicente
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Floresta e Ambiente
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872014000100014
Resumo: This study aimed to evaluate the effect of thermal treatment on the physical properties of juvenile and mature woods of Eucalyptus grandis. Boards were taken from 30-year-old E. grandis trees. The boards were thermally modified at 180 °C in the Laboratory of Wood Drying and Preservation at UNESP, Botucatu, Sao Paulo state, Brazil. The results showed that thermal modification caused: (1) decrease of 6.8% in the density at 0% equilibrium moisture content of mature wood; (2) significant decreases of 14.7% and 35.6% in the maximum volumetric swellings of juvenile and mature woods, respectively; (3) significant decreases of 13.7% and 21.3% in the equilibrium moisture content of juvenile and mature woods, respectively. The influence of thermal modification in juvenile wood was lower than in mature wood and caused greater uniformity in the physical variations between these types of wood in E. grandis.
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spelling Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandisthermally-modified woodeucalyptusmaximum swellingswood densityThis study aimed to evaluate the effect of thermal treatment on the physical properties of juvenile and mature woods of Eucalyptus grandis. Boards were taken from 30-year-old E. grandis trees. The boards were thermally modified at 180 °C in the Laboratory of Wood Drying and Preservation at UNESP, Botucatu, Sao Paulo state, Brazil. The results showed that thermal modification caused: (1) decrease of 6.8% in the density at 0% equilibrium moisture content of mature wood; (2) significant decreases of 14.7% and 35.6% in the maximum volumetric swellings of juvenile and mature woods, respectively; (3) significant decreases of 13.7% and 21.3% in the equilibrium moisture content of juvenile and mature woods, respectively. The influence of thermal modification in juvenile wood was lower than in mature wood and caused greater uniformity in the physical variations between these types of wood in E. grandis.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2014-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872014000100014Floresta e Ambiente v.21 n.1 2014reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.4322/floram.2014.004info:eu-repo/semantics/openAccessCalonego,Fred WilliansSevero,Elias Taylor DurganteLatorraca,João Vicenteeng2014-03-10T00:00:00Zoai:scielo:S2179-80872014000100014Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2014-03-10T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
title Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
spellingShingle Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
Calonego,Fred Willians
thermally-modified wood
eucalyptus
maximum swellings
wood density
title_short Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
title_full Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
title_fullStr Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
title_full_unstemmed Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
title_sort Effect of thermal modification on the physical properties of juvenile and mature woods of Eucalyptus grandis
author Calonego,Fred Willians
author_facet Calonego,Fred Willians
Severo,Elias Taylor Durgante
Latorraca,João Vicente
author_role author
author2 Severo,Elias Taylor Durgante
Latorraca,João Vicente
author2_role author
author
dc.contributor.author.fl_str_mv Calonego,Fred Willians
Severo,Elias Taylor Durgante
Latorraca,João Vicente
dc.subject.por.fl_str_mv thermally-modified wood
eucalyptus
maximum swellings
wood density
topic thermally-modified wood
eucalyptus
maximum swellings
wood density
description This study aimed to evaluate the effect of thermal treatment on the physical properties of juvenile and mature woods of Eucalyptus grandis. Boards were taken from 30-year-old E. grandis trees. The boards were thermally modified at 180 °C in the Laboratory of Wood Drying and Preservation at UNESP, Botucatu, Sao Paulo state, Brazil. The results showed that thermal modification caused: (1) decrease of 6.8% in the density at 0% equilibrium moisture content of mature wood; (2) significant decreases of 14.7% and 35.6% in the maximum volumetric swellings of juvenile and mature woods, respectively; (3) significant decreases of 13.7% and 21.3% in the equilibrium moisture content of juvenile and mature woods, respectively. The influence of thermal modification in juvenile wood was lower than in mature wood and caused greater uniformity in the physical variations between these types of wood in E. grandis.
publishDate 2014
dc.date.none.fl_str_mv 2014-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872014000100014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872014000100014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.4322/floram.2014.004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
dc.source.none.fl_str_mv Floresta e Ambiente v.21 n.1 2014
reponame:Floresta e Ambiente
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Floresta e Ambiente
collection Floresta e Ambiente
repository.name.fl_str_mv Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv floramjournal@gmail.com||floram@ufrrj.br||
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