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Using miriti petiole to produce particleboards

posted on 2023-03-18, 07:04 authored by Ana Carolina Corrêa Furtini, Carolina Aparecida dos Santos, Eduardo Hélio de Novais Miranda, Denisse Concepción Vega Villarruel, Diogo Antonio Correa Gomes, Gracialda Costa Ferreira, Marcela Gomes da Silva, Lorival Marin Mendes, Jose Benedito Guimarães Júnior

Abstract This study aimed to use the petiole residues of miriti to partially replace pine wood and evaluate the effects of this incorporation on the physical and mechanical properties of the particleboards. Panels were produced with 0, 25, 50, and 75% of miriti in partial replacement of wood and 12% of urea-formaldehyde adhesive. The chemical-physical properties of miriti residues showed potential particleboard production as they were similar to those of pinewood. For the physical properties, the panels were classified as low density. There was an increase in the compression ratio and, consequently, in the hygroscopicity . For the mechanical properties, it was observed that the modulus of elasticity (MOE) and modulus of rupture (MOR) did not show any statistical differences. For perpendicular traction (PT), there was a significant reduction in 50%. Considering a general analysis of the physical and mechanical properties, up to 40% of mirti can be substituted, as in this situation they meet the properties mentioned in CS-236-66, except for PT for commercialization of the panels.