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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 0103-9954
Vol. 23, No. 4, 2013, pp. 761-769
Bioline Code: cf13097
Full paper language: English
Document type: Research Article
Document available free of charge

Ciência Florestal, Vol. 23, No. 4, 2013, pp. 761-769

 en PHYSICAL AND MECHANICAL PROPERTIES OF PARTICLEBOARDS OF Acrocarpus fraxinifolius check for this species in other resources COMPOUNDS WITH DIFFERENT PERCENTAGES OF BARK
Trianoski, Rosilani; Iwakiri, Setsuo; de Matos, Jorge Luis Monteiro & Prata, José Guilherme

Abstract

The particleboard industries have used a large volume of wood mainly from planted forest of Pinus check for this species in other resources , being necessary to diversify the wood species and optimize the use of raw material. One of the ways to optimize the use of this resource is the utilization of the bark in the particleboard manufacturing process. In this way, this research was developed to evaluate the physical and mechanical properties of the particleboard manufactured with the wood of Acrocarpus fraxinifolius check for this species in other resources and different proportions of the bark. The boards were manufactured with 100% of wood particles of Acrocarpus fraxinifolius and replacing the wood particles with 30%, 20% and 10% of bark, board density of 0.75 g/cm3 and 8% of urea-formaldehyde resin. The properties of board density, water absorption and thickness swelling, static bending, internal bond and screw pullout strength, were determined according to EN and NBR standards, and then compared with the standard treatment (100% Pinus taeda check for this species in other resources ) and with the minimum requirements of these standards. The results indicated that Acrocarpus fraxinifolius species showed technical feasibility for particleboard production and the addition of the bark until 30% did not negatively affect the physical and mechanical properties of the boards.

Keywords
wood panels; particleboard; Acrocarpus fraxinifolius; bark

 
 pt PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS DE MADEIRA AGLOMERADA DE Acrocarpus fraxinifolius check for this species in other resources , COMPOSTOS COM DIFERENTES PERCENTUAIS DE CASCA
Trianoski, Rosilani; Iwakiri, Setsuo; de Matos, Jorge Luis Monteiro & Prata, José Guilherme

Resumo

A indústria de painéis de madeira aglomerada tem utilizado grandes volumes de madeira, sobretudo de florestas plantadas de Pinus check for this species in other resources , sendo necessário diversificar espécies, bem como maximizar o uso da matéria-prima. Uma das maneiras de maximizar o uso deste recurso é a utilização da casca no processo produtivo. Desta forma, este trabalho teve como objetivo avaliar as propriedades físicas e mecânicas de painéis aglomerados de Acrocarpus fraxinifolius check for this species in other resources contendo diferentes percentuais de casca. Foram manufaturados painéis com 100% de partículas de madeira de Acrocarpus fraxinifolius e painéis com partículas da madeira de Acrocarpus e percentuais de casca de 10%, 20% e 30%, massa especifica nominal de 0,75 g/cm3 e 8% de resina. As propriedades de massa especifica aparente, absorção de água e inchamento em espessura, flexão estática, tração perpendicular à superfície e arrancamento de parafuso foram determinadas de acordo com as normas EN e NBR, e comparadas com um tratamento testemunha (100% Pinus taeda check for this species in other resources ) e com requisitos normativos prescritos pelas respectivas normas.Os resultados demonstraram que a espécie apresenta viabilidade técnica para produção de painéis de madeira aglomerada e que a crescente adição de casca não afetou negativamente as propriedades físicas e mecânicas dos painéis.

Palavras-chave
painéis de madeira; painéis de madeira aglomerada; Acrocarpus fraxinifolius; casca.

 
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