Avaliação da gramatura de cola na propriedade de flexão estática em painéis compensados de Copaifera duckei Dwayer e Eperua oleifera Ducke

Abstract

A presente pesquisa teve como objetivo analisar as seguintes gramaturas de cola: 270; 330; 364 e 390 g.m -² a partir da produção de compensados fenólicos utilizando duas espécies florestais; Copaifera duckei e Eperua oleifera e avaliar a flexão estática dos painéis. A madeira foi proveniente da área de manejo florestal sustentado da Indústria PALAVRAS-CHAVE Gramatura de cola, Compensado, Flexão estática, Copaifera duckei, Eperua oleifera Evaluation of the glue amount in the static bending of the species Copaifera duckei Dwayer e Eperua oleifera Ducke ABSTRACTThe objective of the present research was to analyze 270; 330; 364 and 390 g.m -² amounts of glue in the production of fenolic plywood, using two forest species; Copaifera duckei and Eperua oleifera, and evaluate the static bending of the panels. The wood came from an area of sustained forest pertaining to the Plywood Industry located in Manicoré, county of Amazonas. The panels were produced with thicknesses of 2.2mm at the Gethal Amazonas S.A in Itacoatiara -AM. Forty panels, 20 per species, were produced an industrial level, using a total of 8 treatments. The experiment was completely randomized with factorial arrangement. The European standard EN 310: 1993 was used. The basic density values were 0.60 (g.cm -²) for Copaifera duckei, and 0.62 (g.cm -²) for Eperua oleifera. In static bending, parallel to the grain, only Copaifera duckei presented a significant difference at 5% in the Dunnette Test for the properties of MOE and MOR. In the perpendicular sense to the grain, Copaifera duckei and Eperua oleifera presented significant differences, for MOE as much as MOR, at 5% of probability.