Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds

Autores
Canosa, Guadalupe; Alfieri, Paula Vanesa; Giudice, Carlos Alberto
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Many protective treatments for low density wood are applied by impregnationto give water-repellency and to control pathologies that usually have this substrate.The properties of Araucaria angustifolia , chemically modified by impregnationwith methyltriethoxysilane, n-octyltriethoxysilane and mixtures ofboth in several ratios, were investigated to achieve mainly high dimensionalstability, low capillary water absorption as well as satisfactory water vaporpermeability. The aforementioned impregnants produce the wood chemicalmodification, involving the reaction of hydroxyl groups of the wood with thehydrolysis products of alcoxysilanes. It is concluded that the organosiliconpolymers allow improving important characteristics of wood: 1) the non-occlusivecoating keeps the water vapor permeability unaltered; 2) the alkoxysilane type definesthe hydrophobicity and the continuity of coating formed on the porewall and finally; 3) the polymeric structure formed after finishing sol-gelprocess incises both on the capillary water absorption and the dimensionalstability. In addition, the studied treatments have the advantage of allowingthat the water vapor, which permeates through the organosilicon coatingplaced on cell wall, can exit by hydrophobic repulsion and thus, prevent faultsappearance generated by the condensed water inside of wood.
Fil: Canosa, Guadalupe. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina
Fil: Alfieri, Paula Vanesa. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Giudice, Carlos Alberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina. Universidad Tecnológica Nacional; Argentina
Materia
WOOD
ALKOXYSILANES
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
DIMENSIONAL STABILITY
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/87630
Acceder
id CONICETDig_7afc981dedadc77a49feb25baf2d95a2
oai_identifier_str oai:ri.conicet.gov.ar:11336/87630
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Low Density Wood Impregnation with Water-Repellent Organosilicic CompoundsCanosa, GuadalupeAlfieri, Paula VanesaGiudice, Carlos AlbertoWOODALKOXYSILANESHYDROPHOBICITYWATER VAPOR PERMEABILITYDIMENSIONAL STABILITYHYDROPHOBICITYWATER VAPOR PERMEABILITYhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Many protective treatments for low density wood are applied by impregnationto give water-repellency and to control pathologies that usually have this substrate.The properties of Araucaria angustifolia , chemically modified by impregnationwith methyltriethoxysilane, n-octyltriethoxysilane and mixtures ofboth in several ratios, were investigated to achieve mainly high dimensionalstability, low capillary water absorption as well as satisfactory water vaporpermeability. The aforementioned impregnants produce the wood chemicalmodification, involving the reaction of hydroxyl groups of the wood with thehydrolysis products of alcoxysilanes. It is concluded that the organosiliconpolymers allow improving important characteristics of wood: 1) the non-occlusivecoating keeps the water vapor permeability unaltered; 2) the alkoxysilane type definesthe hydrophobicity and the continuity of coating formed on the porewall and finally; 3) the polymeric structure formed after finishing sol-gelprocess incises both on the capillary water absorption and the dimensionalstability. In addition, the studied treatments have the advantage of allowingthat the water vapor, which permeates through the organosilicon coatingplaced on cell wall, can exit by hydrophobic repulsion and thus, prevent faultsappearance generated by the condensed water inside of wood.Fil: Canosa, Guadalupe. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; ArgentinaFil: Alfieri, Paula Vanesa. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Giudice, Carlos Alberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina. Universidad Tecnológica Nacional; ArgentinaScientific Research Publishing2018-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87630Canosa, Guadalupe; Alfieri, Paula Vanesa; Giudice, Carlos Alberto; Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds; Scientific Research Publishing; Journal of Materials Science and Chemical Engineering; 06; 1; 1-2018; 39-512327-6045CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4236/msce.2018.61006info:eu-repo/semantics/altIdentifier/url/http://www.scirp.org/journal/doi.aspx?DOI=10.4236/msce.2018.61006info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:59:45Zoai:ri.conicet.gov.ar:11336/87630instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:59:45.998CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
title Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
spellingShingle Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
Canosa, Guadalupe
WOOD
ALKOXYSILANES
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
DIMENSIONAL STABILITY
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
title_short Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
title_full Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
title_fullStr Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
title_full_unstemmed Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
title_sort Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds
dc.creator.none.fl_str_mv Canosa, Guadalupe
Alfieri, Paula Vanesa
Giudice, Carlos Alberto
author Canosa, Guadalupe
author_facet Canosa, Guadalupe
Alfieri, Paula Vanesa
Giudice, Carlos Alberto
author_role author
author2 Alfieri, Paula Vanesa
Giudice, Carlos Alberto
author2_role author
author
dc.subject.none.fl_str_mv WOOD
ALKOXYSILANES
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
DIMENSIONAL STABILITY
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
topic WOOD
ALKOXYSILANES
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
DIMENSIONAL STABILITY
HYDROPHOBICITY
WATER VAPOR PERMEABILITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Many protective treatments for low density wood are applied by impregnationto give water-repellency and to control pathologies that usually have this substrate.The properties of Araucaria angustifolia , chemically modified by impregnationwith methyltriethoxysilane, n-octyltriethoxysilane and mixtures ofboth in several ratios, were investigated to achieve mainly high dimensionalstability, low capillary water absorption as well as satisfactory water vaporpermeability. The aforementioned impregnants produce the wood chemicalmodification, involving the reaction of hydroxyl groups of the wood with thehydrolysis products of alcoxysilanes. It is concluded that the organosiliconpolymers allow improving important characteristics of wood: 1) the non-occlusivecoating keeps the water vapor permeability unaltered; 2) the alkoxysilane type definesthe hydrophobicity and the continuity of coating formed on the porewall and finally; 3) the polymeric structure formed after finishing sol-gelprocess incises both on the capillary water absorption and the dimensionalstability. In addition, the studied treatments have the advantage of allowingthat the water vapor, which permeates through the organosilicon coatingplaced on cell wall, can exit by hydrophobic repulsion and thus, prevent faultsappearance generated by the condensed water inside of wood.
Fil: Canosa, Guadalupe. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina
Fil: Alfieri, Paula Vanesa. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Giudice, Carlos Alberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina. Universidad Tecnológica Nacional; Argentina
description Many protective treatments for low density wood are applied by impregnationto give water-repellency and to control pathologies that usually have this substrate.The properties of Araucaria angustifolia , chemically modified by impregnationwith methyltriethoxysilane, n-octyltriethoxysilane and mixtures ofboth in several ratios, were investigated to achieve mainly high dimensionalstability, low capillary water absorption as well as satisfactory water vaporpermeability. The aforementioned impregnants produce the wood chemicalmodification, involving the reaction of hydroxyl groups of the wood with thehydrolysis products of alcoxysilanes. It is concluded that the organosiliconpolymers allow improving important characteristics of wood: 1) the non-occlusivecoating keeps the water vapor permeability unaltered; 2) the alkoxysilane type definesthe hydrophobicity and the continuity of coating formed on the porewall and finally; 3) the polymeric structure formed after finishing sol-gelprocess incises both on the capillary water absorption and the dimensionalstability. In addition, the studied treatments have the advantage of allowingthat the water vapor, which permeates through the organosilicon coatingplaced on cell wall, can exit by hydrophobic repulsion and thus, prevent faultsappearance generated by the condensed water inside of wood.
publishDate 2018
dc.date.none.fl_str_mv 2018-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/87630
Canosa, Guadalupe; Alfieri, Paula Vanesa; Giudice, Carlos Alberto; Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds; Scientific Research Publishing; Journal of Materials Science and Chemical Engineering; 06; 1; 1-2018; 39-51
2327-6045
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87630
identifier_str_mv Canosa, Guadalupe; Alfieri, Paula Vanesa; Giudice, Carlos Alberto; Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds; Scientific Research Publishing; Journal of Materials Science and Chemical Engineering; 06; 1; 1-2018; 39-51
2327-6045
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4236/msce.2018.61006
info:eu-repo/semantics/altIdentifier/url/http://www.scirp.org/journal/doi.aspx?DOI=10.4236/msce.2018.61006
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Scientific Research Publishing
publisher.none.fl_str_mv Scientific Research Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846782319608725504
score 12.982451

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