Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins

Maritime pine (Pinus pinaster) sawdust was used to produce liquefied wood by the polyhydric method with acid catalysis. The process was optimized to produce the highest amount of liquefied wood. Wood liquefied at 160ºC for 90 min was used in the adhesion tests. The bond strength of veneer glued with...

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Autores principales:	Esteves,Bruno, Martins,João, Martins,Jorge, Cruz-Lopes,Luísa, Vicente,José, Domingos,Idalina
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2015
Materias:	Automated bonding evaluation system liquefied wood particleboard Pinus pinaster resin
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200006
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spelling	oai:scielo:S0718-221X20150002000062015-06-17Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resinsEsteves,BrunoMartins,JoãoMartins,JorgeCruz-Lopes,LuísaVicente,JoséDomingos,Idalina Automated bonding evaluation system liquefied wood particleboard Pinus pinaster resin Maritime pine (Pinus pinaster) sawdust was used to produce liquefied wood by the polyhydric method with acid catalysis. The process was optimized to produce the highest amount of liquefied wood. Wood liquefied at 160ºC for 90 min was used in the adhesion tests. The bond strength of veneer glued with urea-formaldehyde and melamine-urea-formaldehyde resins and several mixtures of liquefied wood with urea- formaldehyde and melamine-urea-formaldehyde wasevaluated by automated bonding evaluation system. With the increase in liquefied wood content the bond strength decreased. Nevertheless for 20% liquefied wood the reduction of internal bond strength is relatively small and still within the minimum standards required. When 70% of liquefied wood is employed there is a significant decrease in bond strength. In conclusion it is possible to use a small amount of maritime pine sawdust liquefied wood as a partial substitute of urea-formaldehyde and melamine-urea-formaldehyde resins in the particleboard production, thus decreasing the formaldehyde content.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.17 n.2 20152015-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200006en10.4067/S0718-221X2015005000026
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Automated bonding evaluation system liquefied wood particleboard Pinus pinaster resin
spellingShingle	Automated bonding evaluation system liquefied wood particleboard Pinus pinaster resin Esteves,Bruno Martins,João Martins,Jorge Cruz-Lopes,Luísa Vicente,José Domingos,Idalina Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
description	Maritime pine (Pinus pinaster) sawdust was used to produce liquefied wood by the polyhydric method with acid catalysis. The process was optimized to produce the highest amount of liquefied wood. Wood liquefied at 160ºC for 90 min was used in the adhesion tests. The bond strength of veneer glued with urea-formaldehyde and melamine-urea-formaldehyde resins and several mixtures of liquefied wood with urea- formaldehyde and melamine-urea-formaldehyde wasevaluated by automated bonding evaluation system. With the increase in liquefied wood content the bond strength decreased. Nevertheless for 20% liquefied wood the reduction of internal bond strength is relatively small and still within the minimum standards required. When 70% of liquefied wood is employed there is a significant decrease in bond strength. In conclusion it is possible to use a small amount of maritime pine sawdust liquefied wood as a partial substitute of urea-formaldehyde and melamine-urea-formaldehyde resins in the particleboard production, thus decreasing the formaldehyde content.
author	Esteves,Bruno Martins,João Martins,Jorge Cruz-Lopes,Luísa Vicente,José Domingos,Idalina
author_facet	Esteves,Bruno Martins,João Martins,Jorge Cruz-Lopes,Luísa Vicente,José Domingos,Idalina
author_sort	Esteves,Bruno
title	Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
title_short	Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
title_full	Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
title_fullStr	Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
title_full_unstemmed	Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
title_sort	liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
publisher	Universidad del Bío-Bío
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200006
work_keys_str_mv	AT estevesbruno liquefiedwoodasapartialsubstituteofmelamineureaformaldehydeandureaformaldehyderesins AT martinsjoao liquefiedwoodasapartialsubstituteofmelamineureaformaldehydeandureaformaldehyderesins AT martinsjorge liquefiedwoodasapartialsubstituteofmelamineureaformaldehydeandureaformaldehyderesins AT cruzlopesluisa liquefiedwoodasapartialsubstituteofmelamineureaformaldehydeandureaformaldehyderesins AT vicentejose liquefiedwoodasapartialsubstituteofmelamineureaformaldehydeandureaformaldehyderesins AT domingosidalina liquefiedwoodasapartialsubstituteofmelamineureaformaldehydeandureaformaldehyderesins
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Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins

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