Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia

Autores
Giúdice, Carlos Alberto; Alfieri, Paula; Canosa, Guadalupe
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Panels of Araucaria angustifolia were chemically modified with alkoxysilanes, hydrolyzed and condensed “in situ” by the sol–gel process. Alkoxysilanes selected were aminopropyl methyldiethoxysilane (A), aminopropyl triethoxysilane (B) and a mixture of both (C). Ethanol was used as solvent in 4/1 ethanol/ alkoxide molar ratio. The pH was adjusted to alkaline value for controlling the kinetic of hydrolysis– condensation reactions. Impregnation process was carried out at 45–50 1C in an autoclave, controlling the operating conditions for achieving different weight gains. Laboratory tests were carried out in Two-Foot Tunnel (flame spread index, panel consumption and smoke density) and in TGA detector (mass loss). The performance in laboratory tests can be explicated according the reactivity of the alkoxides. The results support the conclusion that the best fireproof efficiency was observed in woods treated with the alkoxide B, followed by those modified with the mixture C and the alkoxide A, in this order; the results also indicates that as weight gain increased the performance of impregnants against fire
Fil: Giúdice, Carlos Alberto. UTN (Universidad Tecnológica Nacional); Argentina. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas); Argentina
Fil: Alfieri, Paula V. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas); Argentina
Fil: Canosa, Guadalupe. UTN (Universidad Tecnológica Nacional); Argentina
Peer Reviewed
Materia
wood; impregnation; siloxane; solgel; chemical modification; flame retardant
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/2213
Acceder
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network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifoliaGiúdice, Carlos AlbertoAlfieri, PaulaCanosa, Guadalupewood; impregnation; siloxane; solgel; chemical modification; flame retardantPanels of Araucaria angustifolia were chemically modified with alkoxysilanes, hydrolyzed and condensed “in situ” by the sol–gel process. Alkoxysilanes selected were aminopropyl methyldiethoxysilane (A), aminopropyl triethoxysilane (B) and a mixture of both (C). Ethanol was used as solvent in 4/1 ethanol/ alkoxide molar ratio. The pH was adjusted to alkaline value for controlling the kinetic of hydrolysis– condensation reactions. Impregnation process was carried out at 45–50 1C in an autoclave, controlling the operating conditions for achieving different weight gains. Laboratory tests were carried out in Two-Foot Tunnel (flame spread index, panel consumption and smoke density) and in TGA detector (mass loss). The performance in laboratory tests can be explicated according the reactivity of the alkoxides. The results support the conclusion that the best fireproof efficiency was observed in woods treated with the alkoxide B, followed by those modified with the mixture C and the alkoxide A, in this order; the results also indicates that as weight gain increased the performance of impregnants against fireFil: Giúdice, Carlos Alberto. UTN (Universidad Tecnológica Nacional); Argentina. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas); ArgentinaFil: Alfieri, Paula V. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas); ArgentinaFil: Canosa, Guadalupe. UTN (Universidad Tecnológica Nacional); ArgentinaPeer ReviewedElsevier2017-10-27T12:35:53Z2017-10-27T12:35:53Z2013-10-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/2213enginfo:eu-repo/semantics/openAccessAtribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-09-04T11:14:34Zoai:ria.utn.edu.ar:20.500.12272/2213instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-09-04 11:14:34.784Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
title Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
spellingShingle Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
Giúdice, Carlos Alberto
wood; impregnation; siloxane; solgel; chemical modification; flame retardant
title_short Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
title_full Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
title_fullStr Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
title_full_unstemmed Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
title_sort Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
dc.creator.none.fl_str_mv Giúdice, Carlos Alberto
Alfieri, Paula
Canosa, Guadalupe
author Giúdice, Carlos Alberto
author_facet Giúdice, Carlos Alberto
Alfieri, Paula
Canosa, Guadalupe
author_role author
author2 Alfieri, Paula
Canosa, Guadalupe
author2_role author
author
dc.subject.none.fl_str_mv wood; impregnation; siloxane; solgel; chemical modification; flame retardant
topic wood; impregnation; siloxane; solgel; chemical modification; flame retardant
dc.description.none.fl_txt_mv Panels of Araucaria angustifolia were chemically modified with alkoxysilanes, hydrolyzed and condensed “in situ” by the sol–gel process. Alkoxysilanes selected were aminopropyl methyldiethoxysilane (A), aminopropyl triethoxysilane (B) and a mixture of both (C). Ethanol was used as solvent in 4/1 ethanol/ alkoxide molar ratio. The pH was adjusted to alkaline value for controlling the kinetic of hydrolysis– condensation reactions. Impregnation process was carried out at 45–50 1C in an autoclave, controlling the operating conditions for achieving different weight gains. Laboratory tests were carried out in Two-Foot Tunnel (flame spread index, panel consumption and smoke density) and in TGA detector (mass loss). The performance in laboratory tests can be explicated according the reactivity of the alkoxides. The results support the conclusion that the best fireproof efficiency was observed in woods treated with the alkoxide B, followed by those modified with the mixture C and the alkoxide A, in this order; the results also indicates that as weight gain increased the performance of impregnants against fire
Fil: Giúdice, Carlos Alberto. UTN (Universidad Tecnológica Nacional); Argentina. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas); Argentina
Fil: Alfieri, Paula V. CIDEPINT (Centro de Investigación y Desarrollo en Tecnología de Pinturas); Argentina
Fil: Canosa, Guadalupe. UTN (Universidad Tecnológica Nacional); Argentina
Peer Reviewed
description Panels of Araucaria angustifolia were chemically modified with alkoxysilanes, hydrolyzed and condensed “in situ” by the sol–gel process. Alkoxysilanes selected were aminopropyl methyldiethoxysilane (A), aminopropyl triethoxysilane (B) and a mixture of both (C). Ethanol was used as solvent in 4/1 ethanol/ alkoxide molar ratio. The pH was adjusted to alkaline value for controlling the kinetic of hydrolysis– condensation reactions. Impregnation process was carried out at 45–50 1C in an autoclave, controlling the operating conditions for achieving different weight gains. Laboratory tests were carried out in Two-Foot Tunnel (flame spread index, panel consumption and smoke density) and in TGA detector (mass loss). The performance in laboratory tests can be explicated according the reactivity of the alkoxides. The results support the conclusion that the best fireproof efficiency was observed in woods treated with the alkoxide B, followed by those modified with the mixture C and the alkoxide A, in this order; the results also indicates that as weight gain increased the performance of impregnants against fire
publishDate 2013
dc.date.none.fl_str_mv 2013-10-10
2017-10-27T12:35:53Z
2017-10-27T12:35:53Z
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/20.500.12272/2213
url http://hdl.handle.net/20.500.12272/2213
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 12.623145

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