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The objective of this study was to evaluate the quality of particleboard produced with Hevea brasiliensis wood in different mixing proportions of Eucalyptus grandis, Eucalyptus saligna and Eucalyptus urograndis, employed by the industries of the State of São Paulo. The experimental panels were produced with wood particles from Hevea / Eucalyptus, in the proportions of 100/0%, 80/20%, 60/40%, 40/60%, 20/80% and 0/100%, totaling six treatments. The panels were produced with a nominal density of 0.75 g/cm3, 8% of urea-formaldehyde resin content and 1% paraffin emulsion. The quality of the panels was evaluated by water absorption and thickness swelling tests after 2 and 24 hours, internal bond, static bending (MOE and MOR) and screw pulling. The results of the mechanical properties of the panels indicated the feasibility of use of the wood of Hevea brasiliensis (Clone RRIM 600), pure and in combination with the three Eucalyptus species, used by the industries of the State of São Paulo, for the production of particleboard for interior fittings and dry conditions.

scientia forestalis

Produção de painéis aglomerados de Hevea brasiliensis (Clone RRIM 600) em mistura com três espécies de Eucalyptus utilizadas pelas indústrias de São Paulo