Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/219815 |
Resumo: | This study aimed to evaluate the adhesion ability of eucalyptus lumber from three tillage systems, using adhesives: resorcinol formaldehyde and two adhesives in water emulsion based on vinyl poly-acetate. The management systems were characterized by three strata, the stratum one (E1) characterized by wood from coppice and 70 months of age, the stratum two (E2) characterized by wood and retirement age of 166 months and stratum three (E3), also characterized by retirement at 70 months of age. The wood was derived from a random mixture of the first two sawn logs, each three feet from the base, which comprised three treatments on the adhesive used. We evaluated the shear strength by compression tests and the percentage of wood failure in the glue line. Based on the results obtained, it can be said that the adhesion had satisfactory performance with all the resins used, and the average values of shear strength of the glue line were shown to be equivalent to the shear strength of solid wood only for the samples which adhered with 'Wonderbond' adhesive and also provide higher values for wood failure (97.64%). The highest density present in the wood of the second stratum (E2) influenced only sticking with the resorcinol formaldehyde resin. For polyvinyl acetate (Cascorez 2590), shear values decreased in the third management condition (E3). |
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Repositório Institucional da UNESP |
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spelling |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejoBehavior of wood adhesion in clonal hybrid Eucalyptus urophylla × Eucalyptus grandis originating from three management conditionsAdhesiveDensitySawn woodShear strengthThis study aimed to evaluate the adhesion ability of eucalyptus lumber from three tillage systems, using adhesives: resorcinol formaldehyde and two adhesives in water emulsion based on vinyl poly-acetate. The management systems were characterized by three strata, the stratum one (E1) characterized by wood from coppice and 70 months of age, the stratum two (E2) characterized by wood and retirement age of 166 months and stratum three (E3), also characterized by retirement at 70 months of age. The wood was derived from a random mixture of the first two sawn logs, each three feet from the base, which comprised three treatments on the adhesive used. We evaluated the shear strength by compression tests and the percentage of wood failure in the glue line. Based on the results obtained, it can be said that the adhesion had satisfactory performance with all the resins used, and the average values of shear strength of the glue line were shown to be equivalent to the shear strength of solid wood only for the samples which adhered with 'Wonderbond' adhesive and also provide higher values for wood failure (97.64%). The highest density present in the wood of the second stratum (E2) influenced only sticking with the resorcinol formaldehyde resin. For polyvinyl acetate (Cascorez 2590), shear values decreased in the third management condition (E3).Faculdade de Ciências Agronômicas Universidade Estadual Paulista, Caixa Postal 237, CEP 18610-307, Botucatu (SP)Departamento de Engenharia Florestal Universidade Federal do Espírito Santo, CEP 29550-000, Jerônimo Monteiro (ES)Universidade Federal do Espírito Santo, CEP 29550-000, Jerônimo Monteiro (ES)Faculdade de Ciências Agronômicas Universidade Estadual Paulista, Caixa Postal 237, CEP 18610-307, Botucatu (SP)Universidade Estadual Paulista (UNESP)Universidade Federal do Espírito Santo (UFES)Plaster, Octávio Barbosa [UNESP]Oliveira, José Tarcísio da SilvaGonçalves, Fabrício GomesMotta, Javan Pereira2022-04-28T18:57:42Z2022-04-28T18:57:42Z2012-07-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article323-330Ciencia Florestal, v. 22, n. 2, p. 323-330, 2012.0103-99541980-5098http://hdl.handle.net/11449/2198152-s2.0-84864113247Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporCiencia Florestalinfo:eu-repo/semantics/openAccess2022-04-28T18:57:42Zoai:repositorio.unesp.br:11449/219815Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:18:22.094053Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo Behavior of wood adhesion in clonal hybrid Eucalyptus urophylla × Eucalyptus grandis originating from three management conditions |
title |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo |
spellingShingle |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo Plaster, Octávio Barbosa [UNESP] Adhesive Density Sawn wood Shear strength |
title_short |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo |
title_full |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo |
title_fullStr |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo |
title_full_unstemmed |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo |
title_sort |
Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo |
author |
Plaster, Octávio Barbosa [UNESP] |
author_facet |
Plaster, Octávio Barbosa [UNESP] Oliveira, José Tarcísio da Silva Gonçalves, Fabrício Gomes Motta, Javan Pereira |
author_role |
author |
author2 |
Oliveira, José Tarcísio da Silva Gonçalves, Fabrício Gomes Motta, Javan Pereira |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal do Espírito Santo (UFES) |
dc.contributor.author.fl_str_mv |
Plaster, Octávio Barbosa [UNESP] Oliveira, José Tarcísio da Silva Gonçalves, Fabrício Gomes Motta, Javan Pereira |
dc.subject.por.fl_str_mv |
Adhesive Density Sawn wood Shear strength |
topic |
Adhesive Density Sawn wood Shear strength |
description |
This study aimed to evaluate the adhesion ability of eucalyptus lumber from three tillage systems, using adhesives: resorcinol formaldehyde and two adhesives in water emulsion based on vinyl poly-acetate. The management systems were characterized by three strata, the stratum one (E1) characterized by wood from coppice and 70 months of age, the stratum two (E2) characterized by wood and retirement age of 166 months and stratum three (E3), also characterized by retirement at 70 months of age. The wood was derived from a random mixture of the first two sawn logs, each three feet from the base, which comprised three treatments on the adhesive used. We evaluated the shear strength by compression tests and the percentage of wood failure in the glue line. Based on the results obtained, it can be said that the adhesion had satisfactory performance with all the resins used, and the average values of shear strength of the glue line were shown to be equivalent to the shear strength of solid wood only for the samples which adhered with 'Wonderbond' adhesive and also provide higher values for wood failure (97.64%). The highest density present in the wood of the second stratum (E2) influenced only sticking with the resorcinol formaldehyde resin. For polyvinyl acetate (Cascorez 2590), shear values decreased in the third management condition (E3). |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-07-26 2022-04-28T18:57:42Z 2022-04-28T18:57:42Z |
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 |
Ciencia Florestal, v. 22, n. 2, p. 323-330, 2012. 0103-9954 1980-5098 http://hdl.handle.net/11449/219815 2-s2.0-84864113247 |
identifier_str_mv |
Ciencia Florestal, v. 22, n. 2, p. 323-330, 2012. 0103-9954 1980-5098 2-s2.0-84864113247 |
url |
http://hdl.handle.net/11449/219815 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
Ciencia Florestal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
323-330 |
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_ |
1808128344829460480 |