PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERS
ABSTRACT This research objective was to evaluate the technical feasibility of using Schizolobium amazonicum Huber ex Ducke (Paricá) and Cecropia palmata Willd (Embaúba) timbers for the production of veneers and external plywood using two types of adhesives: phenol-formaldehyde and tannin-formaldehyd...
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Sociedade de Investigações Florestais
2018-11-01
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doaj-b77940f907174f21a5170859f617d3fd2020-11-25T00:17:15ZengSociedade de Investigações FlorestaisRevista Árvore1806-90882018-11-0142410.1590/1806-90882018000400006S0100-67622018000400205PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERSJoão Fábio MachadoÉverton HilligLuciano Farinha WatzlawickEzaquel BednarczukEverton Lorenzett TavaresABSTRACT This research objective was to evaluate the technical feasibility of using Schizolobium amazonicum Huber ex Ducke (Paricá) and Cecropia palmata Willd (Embaúba) timbers for the production of veneers and external plywood using two types of adhesives: phenol-formaldehyde and tannin-formaldehyde, and different veneer compositions. The trees were harvested in a planted forest area from gap enrichment in the municipality of Dom Eliseu, Pará state. The Pinus elliottii timber was used as the reference and was donated by a company located in the municipality of Irati, Paraná state. The panels were produced with pure timber of the three species, and two combinations between the paricá and embaúba species, using a resin weight of 145 g m 2 in single line. The veneers yield for the paricá was 80.03% and that of the embaúba 46.37%; The panels produced with pure embaúba timber, or in combination with paricá timber, and bonded with phenol-formaldehyde, presented satisfactory technological properties for external use and were the compositions that presented better properties. The best adhesive for the panels was phenol-formaldehyde, as the tannin-formaldehyde did not present good performance in the weight used in this study.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000400205&lng=en&tlng=enTannin-formaldehydePhenol-formaldehydeVeneers |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
João Fábio Machado Éverton Hillig Luciano Farinha Watzlawick Ezaquel Bednarczuk Everton Lorenzett Tavares |
spellingShingle |
João Fábio Machado Éverton Hillig Luciano Farinha Watzlawick Ezaquel Bednarczuk Everton Lorenzett Tavares PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERS Revista Árvore Tannin-formaldehyde Phenol-formaldehyde Veneers |
author_facet |
João Fábio Machado Éverton Hillig Luciano Farinha Watzlawick Ezaquel Bednarczuk Everton Lorenzett Tavares |
author_sort |
João Fábio Machado |
title |
PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERS |
title_short |
PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERS |
title_full |
PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERS |
title_fullStr |
PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERS |
title_full_unstemmed |
PRODUCTION OF PLYWOOD PANEL FOR EXTERIOR USE WITH PARICÁ AND EMBAÚBA TIMBERS |
title_sort |
production of plywood panel for exterior use with paricá and embaúba timbers |
publisher |
Sociedade de Investigações Florestais |
series |
Revista Árvore |
issn |
1806-9088 |
publishDate |
2018-11-01 |
description |
ABSTRACT This research objective was to evaluate the technical feasibility of using Schizolobium amazonicum Huber ex Ducke (Paricá) and Cecropia palmata Willd (Embaúba) timbers for the production of veneers and external plywood using two types of adhesives: phenol-formaldehyde and tannin-formaldehyde, and different veneer compositions. The trees were harvested in a planted forest area from gap enrichment in the municipality of Dom Eliseu, Pará state. The Pinus elliottii timber was used as the reference and was donated by a company located in the municipality of Irati, Paraná state. The panels were produced with pure timber of the three species, and two combinations between the paricá and embaúba species, using a resin weight of 145 g m 2 in single line. The veneers yield for the paricá was 80.03% and that of the embaúba 46.37%; The panels produced with pure embaúba timber, or in combination with paricá timber, and bonded with phenol-formaldehyde, presented satisfactory technological properties for external use and were the compositions that presented better properties. The best adhesive for the panels was phenol-formaldehyde, as the tannin-formaldehyde did not present good performance in the weight used in this study. |
topic |
Tannin-formaldehyde Phenol-formaldehyde Veneers |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000400205&lng=en&tlng=en |
work_keys_str_mv |
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