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Effects of amount of adhesive spread on the glue line shear strength in the plywood of Copaifera duckei Dawyer and Eperua oleifera Ducke

The wood as a source of organic material responds in different ways to different treatments her employees, including the application of glue which depends on its moisture content, tending to reach a moisture content in dynamic equilibrium with relative humidity of the atmosphere. Currently we use blades with moisture levels of between 5 and 15% according to the type of resin used. This study evaluated the effect of 04 weights (270, 330, 364 and 390 g/m²) in the production of panels using offset the species: Copaifera ducker Dawyer and Eperua oleifera Ducke. The species were removed from the area of sustainable forest management Gethal Plywood Industry Ltd. located in Manicoré-Am. The slides were produced with thickness of 2.2 mm. The variables of the pressing cycle of were controlled by following the technical guidelines set by the manufacturer of resin. The property was assessed to resilience of the line of glue, with samples of the hood and the kernels in drought conditions and post-boil. Statistical analysis was applied an experimental design with in a factorial arrangement of treatments. Confronting the average values of voltage collapse and the percentage of failure in wood obtained in this research, test and post-boiling dry, with the literature, it appears that the panels assessed meet the established criteria, may be indicated for use inside and outside Because according to EN 314-2 (1993) the average voltage collapse along with the percentage of failure in the wood are at an acceptable standard of behavior.

veneer; glue line; adhesive


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