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vol.12 número1COMPORTAMIENTO FRENTE AL FUEGO DE TABLEROS Y MADERA DE PINO RADIATA CON Y SIN PINTURA RETARDANTE DE LLAMADRYING BEHAVIOUR OF SECOND-GROWTH NOTHOFAGUS ALPINA índice de autoresíndice de assuntospesquisa de artigos
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Maderas. Ciencia y tecnología

versão On-line ISSN 0718-221X

Resumo

POBLETE W, Hernán  e  BURGOS O, Rodrigo. EUCALYPTUS NITENS AS RAW MATERIAL FOR PARTICLEBOARDS. Maderas, Cienc. tecnol. [online]. 2010, vol.12, n.1, pp.25-35. ISSN 0718-221X.  http://dx.doi.org/10.4067/S0718-221X2010000100003.

The aim of the study was to evaluate Eucalyptus nitens as raw material for the production of particleboards. Wood density and particle size, slenderness and pH-value were controlled. Bending strength, internal bond, density, thickness swelling and water absorption after 2 and 24 hours of particleboards with densities between 450 and 750 kg/m³, were determined. Correlations between board density and properties were calculated. The wood and particle characteristics as well as the obtained board properties proved that Eucalyptus nitens could be used for the particleboard production. As board density increases, higher mechanical properties were founded. Thickness swelling and water absorption decreased as density of particleboard increased. High correlation factors (> 0,7) between dependent variables (thickness swelling, absorption, bending strength and IB) and board density were obtained. Due to swelling is a critical property, we recommend the addition of a wax emulsion and a catalyst in the middle layer of the particleboard.

Palavras-chave : Particleboard; Eucalyptus nitens; board density; physical and mechanical properties.

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