BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/5739 |
Resumo: | http://dx.doi.org/10.5902/198050985739This 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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BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONSComportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejoadhesiveshear strengthsawn wooddensityadesivocisalhamentomadeira serradadensidadehttp://dx.doi.org/10.5902/198050985739This 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).http://dx.doi.org/10.5902/198050985739O presente trabalho objetivou avaliar a capacidade de adesão da madeira serrada de eucalipto proveniente de três sistemas de manejo, empregando-se os adesivos: resorcina formaldeído, e dois adesivos em emulsão aquosa à base de poliacetato de vinila. Os sistemas de manejo foram caracterizados por três estratos, sendo o estrato um (E1) caracterizado por madeira proveniente de talhadia e idade de 70 meses; o estrato dois (E2) caracterizado por madeira de reforma e idade de 166 meses e o estrato três (E3) caracterizado também por reforma aos 70 meses de idade. A madeira foi originada de uma mistura aleatória das duas primeiras toras serradas, de três metros cada, a partir da base, que compuseram três tratamentos, relativos aos adesivos utilizados. Foi avaliada a resistência ao cisalhamento por compressão paralela e o percentual de falha na madeira na linha de cola. Com base nos resultados obtidos pode-se afirmar que a adesão apresentou desempenho satisfatório em todas as resinas utilizadas, sendo que os valores médios da resistência ao cisalhamento da linha de cola mostraram-se equivalentes à resistência ao cisalhamento da madeira sólida apenas para as amostras aderidas com o adesivo Wonderbond, proporcionando também maiores valores para falha na madeira (97,64%). A maior densidade presente na madeira do segundo estrato (E2) influenciou apenas na colagem com a resina resorcina formaldeído. Para o acetato de polivinila (Cascorez 2590), os valores do cisalhamento diminuíram na terceira condição de manejo (E3).Universidade Federal de Santa Maria2012-06-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/573910.5902/198050985739Ciência Florestal; Vol. 22 No. 2 (2012); 323-330Ciência Florestal; v. 22 n. 2 (2012); 323-3301980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/5739/3380Plaster, Octávio BarbosaOliveira, José Tarcísio da SilvaGonçalves, Fabrício GomesMotta, Javan Pereirainfo:eu-repo/semantics/openAccess2014-08-26T00:31:09Zoai:ojs.pkp.sfu.ca:article/5739Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2014-08-26T00:31:09Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS Comportamento de adesão da madeira de um híbrido clonal de Eucalyptus urophylla × Eucalyptus grandis proveniente de três condições de manejo |
title |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS |
spellingShingle |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS Plaster, Octávio Barbosa adhesive shear strength sawn wood density adesivo cisalhamento madeira serrada densidade |
title_short |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS |
title_full |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS |
title_fullStr |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS |
title_full_unstemmed |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS |
title_sort |
BEHAVIOR OF WOOD ADHESION IN CLONAL HYBRID Eucalyptus urophylla x Eucalyptus grandis ORIGINATING FROM THREE MANAGEMENT CONDITIONS |
author |
Plaster, Octávio Barbosa |
author_facet |
Plaster, Octávio Barbosa 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.author.fl_str_mv |
Plaster, Octávio Barbosa Oliveira, José Tarcísio da Silva Gonçalves, Fabrício Gomes Motta, Javan Pereira |
dc.subject.por.fl_str_mv |
adhesive shear strength sawn wood density adesivo cisalhamento madeira serrada densidade |
topic |
adhesive shear strength sawn wood density adesivo cisalhamento madeira serrada densidade |
description |
http://dx.doi.org/10.5902/198050985739This 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 |
2012-06-29 |
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://periodicos.ufsm.br/cienciaflorestal/article/view/5739 10.5902/198050985739 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/5739 |
identifier_str_mv |
10.5902/198050985739 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/5739/3380 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 22 No. 2 (2012); 323-330 Ciência Florestal; v. 22 n. 2 (2012); 323-330 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944128088244224 |