Marine borers resistance of chemically modified portuguese wood

This study deals with the role of hardness and chemical toxicity in the resistance of pinewood to marine borers. Portuguese wood Maritime pine (Pinus pinaster Ait.) was modified with 1,3-dimethylol 4,5-dihydroxy ethylene urea (DMDHEU), methylated methylol melamine (MMF), tetraethoxysilane (TEOS) and...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Barroso Lopes,Duarte, Mai,Carsten, Militz,Holger
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2014
Materias:	Chemical modification resistance EN 275 Limnorids marine borers Pinus pinaster Teredinids use class 5
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2014000100010
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-221X2014000100010
record_format	dspace
spelling	oai:scielo:S0718-221X20140001000102014-03-12Marine borers resistance of chemically modified portuguese woodBarroso Lopes,DuarteMai,CarstenMilitz,Holger Chemical modification resistance EN 275 Limnorids marine borers Pinus pinaster Teredinids use class 5 This study deals with the role of hardness and chemical toxicity in the resistance of pinewood to marine borers. Portuguese wood Maritime pine (Pinus pinaster Ait.) was modified with 1,3-dimethylol 4,5-dihydroxy ethylene urea (DMDHEU), methylated methylol melamine (MMF), tetraethoxysilane (TEOS) and two types of wax. In addition, for comparative purposes, different control species, Ipê, Beech and Blue Gum and CCA treated pine were included. All specimens were exposed over 2 years in sea (Porto, north of Portugal). Three inspections were performed after exposure (6, 12 and 24 months). The influence of type and level of modification as well as hardness was evaluated. As results: Specimens modified with resin have shown slight or trace attack by Teredinids in DMDHEU with low level of modification (10% of weight percent gain, WPG); MMF resin with high and low level of modification (25% and 10% of WPG) have shown trace to moderate attack, respectively. With the TEOS and wax impregnated wood which fill the cell lumens no significant difference in marine borers attack was found as compared to unmodified control specimens, despite the increased hardness.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.16 n.1 20142014-02-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2014000100010en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chemical modification resistance EN 275 Limnorids marine borers Pinus pinaster Teredinids use class 5
spellingShingle	Chemical modification resistance EN 275 Limnorids marine borers Pinus pinaster Teredinids use class 5 Barroso Lopes,Duarte Mai,Carsten Militz,Holger Marine borers resistance of chemically modified portuguese wood
description	This study deals with the role of hardness and chemical toxicity in the resistance of pinewood to marine borers. Portuguese wood Maritime pine (Pinus pinaster Ait.) was modified with 1,3-dimethylol 4,5-dihydroxy ethylene urea (DMDHEU), methylated methylol melamine (MMF), tetraethoxysilane (TEOS) and two types of wax. In addition, for comparative purposes, different control species, Ipê, Beech and Blue Gum and CCA treated pine were included. All specimens were exposed over 2 years in sea (Porto, north of Portugal). Three inspections were performed after exposure (6, 12 and 24 months). The influence of type and level of modification as well as hardness was evaluated. As results: Specimens modified with resin have shown slight or trace attack by Teredinids in DMDHEU with low level of modification (10% of weight percent gain, WPG); MMF resin with high and low level of modification (25% and 10% of WPG) have shown trace to moderate attack, respectively. With the TEOS and wax impregnated wood which fill the cell lumens no significant difference in marine borers attack was found as compared to unmodified control specimens, despite the increased hardness.
author	Barroso Lopes,Duarte Mai,Carsten Militz,Holger
author_facet	Barroso Lopes,Duarte Mai,Carsten Militz,Holger
author_sort	Barroso Lopes,Duarte
title	Marine borers resistance of chemically modified portuguese wood
title_short	Marine borers resistance of chemically modified portuguese wood
title_full	Marine borers resistance of chemically modified portuguese wood
title_fullStr	Marine borers resistance of chemically modified portuguese wood
title_full_unstemmed	Marine borers resistance of chemically modified portuguese wood
title_sort	marine borers resistance of chemically modified portuguese wood
publisher	Universidad del Bío-Bío
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2014000100010
work_keys_str_mv	AT barrosolopesduarte marineborersresistanceofchemicallymodifiedportuguesewood AT maicarsten marineborersresistanceofchemicallymodifiedportuguesewood AT militzholger marineborersresistanceofchemicallymodifiedportuguesewood
_version_	1714202578465587200

Marine borers resistance of chemically modified portuguese wood

Ejemplares similares