Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)

Detalhes bibliográficos
Autor(a) principal: Calonego, Fred Willians [UNESP]
Data de Publicação: 2020
Outros Autores: Severo, Elias Taylor Durgante [UNESP], de Figueiredo Latorraca, João Vicente, Bond, Brian H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/2179-8087.084117
http://hdl.handle.net/11449/201790
Resumo: Exposing timber to temperatures approaching 200 °C causes thermal modification and changes its characteristics. This study evaluates the effect of various levels of thermal treatment on the physical properties of juvenile and mature wood from rubber tree (Hevea brasiliensis). Boards taken from 53-year-old rubber trees were thermally modified at up to 220 °C. Thermal treatment caused decreases on the oven-dried density, equilibrium moisture content, and swellings on juvenile and mature woods of H. brasiliensis. Influence of thermal modification at 180-200 °C in juvenile wood was lower than in mature wood, whereas the treatment at 220 °C caused a greater variation in properties of juvenile wood. The thermally modified wood is a suitable product for use in environments with high levels of relative humidity.
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spelling Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)Density of woodEquilibrium moisture contentMaximum swellingsRubber woodThermal modificationExposing timber to temperatures approaching 200 °C causes thermal modification and changes its characteristics. This study evaluates the effect of various levels of thermal treatment on the physical properties of juvenile and mature wood from rubber tree (Hevea brasiliensis). Boards taken from 53-year-old rubber trees were thermally modified at up to 220 °C. Thermal treatment caused decreases on the oven-dried density, equilibrium moisture content, and swellings on juvenile and mature woods of H. brasiliensis. Influence of thermal modification at 180-200 °C in juvenile wood was lower than in mature wood, whereas the treatment at 220 °C caused a greater variation in properties of juvenile wood. The thermally modified wood is a suitable product for use in environments with high levels of relative humidity.Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)Universidade Federal Rural do Rio de Janeiro (UFRRJ)Virginia Polytechnic Institute and State University (VPI)Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)Universidade Estadual Paulista (Unesp)Universidade Federal Rural do Rio de Janeiro (UFRRJ)Virginia Polytechnic Institute and State University (VPI)Calonego, Fred Willians [UNESP]Severo, Elias Taylor Durgante [UNESP]de Figueiredo Latorraca, João VicenteBond, Brian H.2020-12-12T02:41:53Z2020-12-12T02:41:53Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-7application/pdfhttp://dx.doi.org/10.1590/2179-8087.084117Floresta e Ambiente, v. 27, n. 2, p. 1-7, 2020.2179-80871415-0980http://hdl.handle.net/11449/20179010.1590/2179-8087.084117S2179-808720200002001072-s2.0-85085199024S2179-80872020000200107.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFloresta e Ambienteinfo:eu-repo/semantics/openAccess2024-04-30T13:10:48Zoai:repositorio.unesp.br:11449/201790Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:58:34.672898Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
title Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
spellingShingle Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
Calonego, Fred Willians [UNESP]
Density of wood
Equilibrium moisture content
Maximum swellings
Rubber wood
Thermal modification
title_short Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
title_full Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
title_fullStr Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
title_full_unstemmed Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
title_sort Physical properties of thermally modified juvenile and mature wood of Hevea brasiliensis (Euphorbiaceae)
author Calonego, Fred Willians [UNESP]
author_facet Calonego, Fred Willians [UNESP]
Severo, Elias Taylor Durgante [UNESP]
de Figueiredo Latorraca, João Vicente
Bond, Brian H.
author_role author
author2 Severo, Elias Taylor Durgante [UNESP]
de Figueiredo Latorraca, João Vicente
Bond, Brian H.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal Rural do Rio de Janeiro (UFRRJ)
Virginia Polytechnic Institute and State University (VPI)
dc.contributor.author.fl_str_mv Calonego, Fred Willians [UNESP]
Severo, Elias Taylor Durgante [UNESP]
de Figueiredo Latorraca, João Vicente
Bond, Brian H.
dc.subject.por.fl_str_mv Density of wood
Equilibrium moisture content
Maximum swellings
Rubber wood
Thermal modification
topic Density of wood
Equilibrium moisture content
Maximum swellings
Rubber wood
Thermal modification
description Exposing timber to temperatures approaching 200 °C causes thermal modification and changes its characteristics. This study evaluates the effect of various levels of thermal treatment on the physical properties of juvenile and mature wood from rubber tree (Hevea brasiliensis). Boards taken from 53-year-old rubber trees were thermally modified at up to 220 °C. Thermal treatment caused decreases on the oven-dried density, equilibrium moisture content, and swellings on juvenile and mature woods of H. brasiliensis. Influence of thermal modification at 180-200 °C in juvenile wood was lower than in mature wood, whereas the treatment at 220 °C caused a greater variation in properties of juvenile wood. The thermally modified wood is a suitable product for use in environments with high levels of relative humidity.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T02:41:53Z
2020-12-12T02:41:53Z
2020-01-01
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://dx.doi.org/10.1590/2179-8087.084117
Floresta e Ambiente, v. 27, n. 2, p. 1-7, 2020.
2179-8087
1415-0980
http://hdl.handle.net/11449/201790
10.1590/2179-8087.084117
S2179-80872020000200107
2-s2.0-85085199024
S2179-80872020000200107.pdf
url http://dx.doi.org/10.1590/2179-8087.084117
http://hdl.handle.net/11449/201790
identifier_str_mv Floresta e Ambiente, v. 27, n. 2, p. 1-7, 2020.
2179-8087
1415-0980
10.1590/2179-8087.084117
S2179-80872020000200107
2-s2.0-85085199024
S2179-80872020000200107.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Floresta e Ambiente
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1-7
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128588064489472

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