This research aimed to develop and evaluation the mechanical properties of a particleboard produced with bamboo particles and coconut fiber in three different experimental conditions. The panels were manufactured with castor oil based polyurethane bi-component resin in three different ratios of the adhesive components (pre-polymer and polyol). Mechanical characterization was conducted to determine modulus of elasticity (MOE) and modulus of rupture (MOR) in static bending. For the static bending test the better values were to the experimental condition 2, which relate de proportion of 1:1.5 of pre-polymer and polyol, respectively. This best solution is to reduce the amount of pre-polymer in the formulation of the adhesive, due to decreased of use of chemicals most polluting.
The use of bamboo in the production of particleboard has been gaining ground as well as other agroindustrial waste, both present a promising alternative for the development of more sustainable materials. This research aims to evaluate the physical properties of particleboard, composed of bamboo particles species Dendrocalamus giganteus and coffee husks particles in the core layer, joined by a castor oil based polyurethane resin. Physical characterization was performed based on the Brazilian Standard [1]. The physical properties of density, moisture content, water absorption during 24 hours and thickness swelling during 24 hours were evaluated. The results were compared with the Brazilian standard [1] and it was concluded that from the evaluated properties, this panel can be used commercially.
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