LIGNOCELLULOSIC COMPOSITES FROM BRAZILIAN GIANT BAMBOO (Guadua magna) PART 1: PROPERTIES OF RESIN BONDED PARTICLEBOARDS

Larissa M Arruda, Cláudio H. S Del Menezzi, Divino E. Teixeira, Priscila C. De Araújo

Abstract


This experiment evaluated the utilization of the recently identified Brazilian giant bamboo, Guaduamagna (Londoño & Filg.) to manufacture medium density particleboard. Four board types were tested:two of them exclusively with particles of bamboo and two in a mixture of bamboo with Pinus taedawood particles. The target density of the panels was 0.65 g/cm3 for all treatments. The particleboardswere bonded using 8% content of urea-formaldehyde (UF) and phenol-formaldehyde (PF) resins, basedon dry weight mat. Mechanical, physical and nondestructive properties of the panels were assessed.The particleboards produced with PF showed better dimensional stability than UF particleboards. Theaddition of wood particles improved the mechanical properties of EM, fM and IB. The flexural propertiesof the panels (EM, fM) could be modeled using either EMd or density and the models fitted presented highpredictability (>66%).

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