FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS

Boron compounds are used as wood preservatives as they are both fungicide and insecticide, relatively inexpensive and environmentally acceptable. Nevertheless, in the field of wood protection, borates are only used for indoor non-exposed applications or in association with other biocides, due to the...

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Autores principales:	Thévenon,Marie-France, Tondi,Gianluca, Pizzi,Antonio
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2010
Materias:	Boric Acid Tannins Hexamine Leaching EN 113 Pycnoporus sanguineus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2010000300009
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id	oai:scielo:S0718-221X2010000300009
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spelling	oai:scielo:S0718-221X20100003000092010-12-07FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONSThévenon,Marie-FranceTondi,GianlucaPizzi,Antonio Boric Acid Tannins Hexamine Leaching EN 113 Pycnoporus sanguineus Boron compounds are used as wood preservatives as they are both fungicide and insecticide, relatively inexpensive and environmentally acceptable. Nevertheless, in the field of wood protection, borates are only used for indoor non-exposed applications or in association with other biocides, due to their main disadvantage of being readily leachable from treated wood. To overcome this problem, boric acid was fixed into wood with condensed tannins and hexamine through a non-formaldehyde emission polymer network. Treated mixtures were tested with different proportions of mimosa tannins and hexamine, with and without co-added boric acid. The treated beech samples were leached and tested according to European Standard EN 113 against Pycnoporus sanguineus in tropical conditions. The systems had minimal boron depletion and good fungal decay efficacy, meeting the efficacy requirements of EN 113. Thus, these associations could be envisaged to treat timber with insufficient natural durability for above ground outdoor use, and for a long service-life of the wooden commodities.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.12 n.3 20102010-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2010000300009en10.4067/S0718-221X2010000300009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Boric Acid Tannins Hexamine Leaching EN 113 Pycnoporus sanguineus
spellingShingle	Boric Acid Tannins Hexamine Leaching EN 113 Pycnoporus sanguineus Thévenon,Marie-France Tondi,Gianluca Pizzi,Antonio FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS
description	Boron compounds are used as wood preservatives as they are both fungicide and insecticide, relatively inexpensive and environmentally acceptable. Nevertheless, in the field of wood protection, borates are only used for indoor non-exposed applications or in association with other biocides, due to their main disadvantage of being readily leachable from treated wood. To overcome this problem, boric acid was fixed into wood with condensed tannins and hexamine through a non-formaldehyde emission polymer network. Treated mixtures were tested with different proportions of mimosa tannins and hexamine, with and without co-added boric acid. The treated beech samples were leached and tested according to European Standard EN 113 against Pycnoporus sanguineus in tropical conditions. The systems had minimal boron depletion and good fungal decay efficacy, meeting the efficacy requirements of EN 113. Thus, these associations could be envisaged to treat timber with insufficient natural durability for above ground outdoor use, and for a long service-life of the wooden commodities.
author	Thévenon,Marie-France Tondi,Gianluca Pizzi,Antonio
author_facet	Thévenon,Marie-France Tondi,Gianluca Pizzi,Antonio
author_sort	Thévenon,Marie-France
title	FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS
title_short	FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS
title_full	FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS
title_fullStr	FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS
title_full_unstemmed	FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS
title_sort	friendly wood preservative system based on polymerized tannin resin-boric acid for outdoor applications
publisher	Universidad del Bío-Bío
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2010000300009
work_keys_str_mv	AT thevenonmariefrance friendlywoodpreservativesystembasedonpolymerizedtanninresinboricacidforoutdoorapplications AT tondigianluca friendlywoodpreservativesystembasedonpolymerizedtanninresinboricacidforoutdoorapplications AT pizziantonio friendlywoodpreservativesystembasedonpolymerizedtanninresinboricacidforoutdoorapplications
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FRIENDLY WOOD PRESERVATIVE SYSTEM BASED ON POLYMERIZED TANNIN RESIN-BORIC ACID FOR OUTDOOR APPLICATIONS

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