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dc.date.accessioned 2019-02-08T14:00:45Z
dc.date.available 2019-02-08T14:00:45Z
dc.identifier.uri http://digital.cic.gba.gob.ar/handle/11746/8816
dc.title Low Density Wood Impregnation with Water-Repellent Organosilicic Compounds en
dc.type Artículo es
dcterms.abstract Many protective treatments for low density wood are applied by impregnation to give water-repellency and to control pathologies that usually have this substrate. The properties of Araucaria angustifolia , chemically modified by impregnation with methyltriethoxysilane, n-octyltriethoxysilane and mixtures of both in several ratios, were investigated to achieve mainly high dimensional stability, low capillary water absorption as well as satisfactory water vapor permeability. The aforementioned impregnants produce the wood chemical modification, involving the reaction of hydroxyl groups of the wood with the hydrolysis products of alcoxysilanes. It is concluded that the organosilicon polymers allow improving important characteristics of wood: 1) the non-occlusive coating keeps the water vapor permeability unaltered; 2) the alkoxysilane type defines the hydrophobicity and the continuity of coating formed on the pore wall and finally; 3) the polymeric structure formed after finishing sol-gel process incises both on the capillary water absorption and the dimensional stability. In addition, the studied treatments have the advantage of allowing that the water vapor, which permeates through the organosilicon coating placed on cell wall, can exit by hydrophobic repulsion and thus, prevent faults appearance generated by the condensed water inside of wood. en
dcterms.extent 13 p. es
dcterms.issued 2018
dcterms.language Español es
dcterms.license Attribution 4.0 International (BY 4.0) es
dcterms.subject wood en
dcterms.subject alkoxysilanes en
dcterms.subject hydrophobicity en
dcterms.subject water vapor permeability en
dcterms.subject dimensional stability en
cic.version info:eu-repo/semantics/submittedVersion es
dcterms.creator.author Canosa, Guadalupe es
dcterms.creator.author Alfieri, Paula Vanesa es
dcterms.creator.author Giúdice, Carlos A. es
cic.lugarDesarrollo Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica es
dcterms.subject.materia Ingenierías y Tecnologías es
dcterms.isPartOf.issue vol. 6 es
dcterms.isPartOf.series Journal of Materials Science and Chemical Engineering es
cic.isPeerReviewed true es
cic.isFulltext true es
cic.institucionOrigen Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica es


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