Por favor utiliza este link para citar o compartir este documento: http://repositoriodigital.academica.mx/jspui/handle/987654321/285677
Título: EFFECTS OF VENEER DRYING AT HIGH TEMPERATURE AND CHEMICAL TREATMENTS ON EQUILIBRIUM MOISTURE CONTENT OF PLYWOOD
Palabras clave: Agrociencias
Equilibrium moisture content
high temperature drying
impregn ation
plywood
Editorial: Universidad del Bío Bío
Descripción: Moisture content (MC) is one of the most important factors that can affect many physical and mechanical properties of wood and veneers. MC strongly affects the final strength and durability of joints, development of surface checks in the wood and dimensional stability of the bonded assembly. In this study, plywood panels made from Alnus glutinosa (Alder), Fagus orientalis (Beech) and Picea orientalis (Spruce) wood veneers were treated with ammonium acetate, borax and boric acid by using dipping method to test for their equilibrium moisture content (EMC). Borax and boric acid solutions were used for fire-retardancy, and ammonium acetate for reducing formaldehyde emission. Two different veneer drying temperatures (20°C and 180°C) were used to reveal the effects of veneer drying at high temperature on the hygroscopicity of plywood panels. EMC values of alder, beech and spruce panels decreased significantly with veneer drying at high temperature. Picea orientalis (Spruce) plywood panels had the highest EMC values and followed by Alnus glutinosa (Alder) and Fagus orientalis (Beech) panels. EMC values of plywood panels increased significantly for both drying temperatures after ammonium acetat e, borax and boric acid treatments.
Other Identifiers: http://www.redalyc.org/articulo.oa?id=48532044007
Aparece en las Colecciones:Maderas. Ciencia y Tecnología

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