Author(s): Marques, Marcos Breno Lopes ; .
Date: 2020
Origin: Oasisbr
Subject(s): Res??duos vegetais; Madeira - Produtos; Madeira aglomerada; Madeira - Utiliza????o; CI??NCIAS AGRARIAS; Res??duos madeireiros; Pain??is aglomerados; Esp??cies amaz??nicas; Propriedades f??sico-mec??nicas
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The waste resulting from the operational phases in companies in the forestry market, are normally considered by-products and, therefore, they are discarded or reused in an energetic way, however, this material has a greater potential, such as the generation of new products through agglutination, which may generate a new trade adding competitiveness between products of native and planted species. This research aimed to analyze the feasibility of using wood residue for production particleboards. As studied species were: Dinizia excelsa Ducke and Manilkara huberi (Ducke) Chevalier and a mixture of high density commercial species. The experimental design consisted of five treatments with five replicates each. Experimental panels with nominal density of 0,80 g.cm3 were used, using a castor oil-based resin with 10% and 15% percentages. The panels were pressed with a specific pressure of 10 MPa, a temperature of 100oC and a pressing time of ten minutes. The evaluations of the results obtained were compared with the ANSI A208.1 standard and the literature on particleboards of tropical species. The results obtained indicate the technical feasibility of using the residues from the forestry of amazon species for the production of particleboards, with emphasis on Manilkara huberi (Ducke) Chevalier, which, in general, presented the best results of the normative evaluation, however, all panels have potential for industrialization.
Os res??duos de madeira resultantes das fases operacionais nas empresas do mercado florestal, normalmente s??o considerados subprodutos e, sendo assim, s??o descartados ou reutilizados de uma forma energ??tica, no entanto, esse material apresenta um potencial maior, como a gera????o de novos produtos atrav??s de sua aglutina????o, o que pode vir a gerar um novo com??rcio agregando competividade entre produtos de esp??cies nativas e plantadas. Esta pesquisa teve como objetivo analisar a viabilidade do uso de res??duos s??lidos para produ????o de pain??is. As esp??cies estudadas foram: Dinizia excelsa Ducke e Manilkara huberi (Ducke) Chevalier e uma mistura de esp??cies comerciais de alta densidade. O delineamento experimental consistiu de cinco tratamentos tendo cinco repeti????es cada um deles. Foram produzidos pain??is experimentais com densidade nominal de 0,80 g.cm3, utilizando a resina ?? base de ??leo de mamona com percentuais de 10% e 15%. Os pain??is foram prensados com press??o de 10 MPa, temperatura de 100oC e tempo de prensagem de dez minutos. As avalia????es dos resultados obtidos foram comparadas com a norma ANSI A208.1 e com a literatura de pain??is aglomerados de esp??cies tropicais. Os resultados obtidos indicam a viabilidade t??cnica da utiliza????o dos res??duos provenientes do desdobro de esp??cies florestais para a produ????o de pain??is de madeira aglomerada, com destaque para Manilkara huberi (Ducke) Chevalier que, de uma maneira geral, apresentou os melhores resultados da avalia????o normativa, no entanto, todos os pain??is apresentam potencial para industrializa????o.
