High-density particleboard made from agro-industrial waste and different adhesives

Abstract

Particleboards were made using particles from sugarcane bagasse and eucalyptus residues of the pulp industry. The particleboard properties were evaluated according to ABNT NBR 14810-1 (2013), ABNT NBR 14810-2 (2013), and ANSI A208.1 (1999) standards, which compared the efficiency of castor oil-based polyurethane resin (PU-Castor) and urea-formaldehyde resin (UF). The particleboards were composed of 60% wood particles and 40% bagasse, with a 10% adhesive dose based on the dry mass of particles. The following parameters were evaluated: apparent density, moisture content (MC), thickness swelling after 24 h, modulus of rupture (MOR), modulus of elasticity to static bending (MOE), and internal bond strength of panels (IB). The results obtained demonstrated the potential use of eucalyptus and sugarcane bagasse residues in the production of high-density particleboards. The panels produced with PU-Castor showed greater efficiency, and their physical and mechanical properties were compatible with the requirements of the Brazilian standard for P4 panels (structural panels for use in dry conditions) and the American standard for H-3 panels (high industrial density).

Use of Residues From the Cellulose Industry and Sugarcane Bagasse in Particleboards

“…Sugarcane bagasse was collected at the Vale do Paraná S/A alcohol and sugar mill, being sun-dried until the apparent moisture reached between 10 and 12%. The material was also crushed to obtain a particle size between 4 and 10 mm (Sugahara et al 2019). The resin consisted of a castor oil-based bicomponent polyurethane resin (PU), with polyol (1.1 g/cm 3 ), made from castor oil and polyfunctional isocyanate (1.24 g/cm 3 ) at a 1:1 ratio (polyol and isocyanate) (Ferro et al 2014).…”

“…The resin consisted of a castor oil-based bicomponent polyurethane resin (PU), with polyol (1.1 g/cm 3 ), made from castor oil and polyfunctional isocyanate (1.24 g/cm 3 ) at a 1:1 ratio (polyol and isocyanate) (Ferro et al 2014). The adhesive content used was 10% relative to the dry mass of particles (Sugahara et al 2019).…”

“…Afterward, the panel was hot-pressed at 100 °C and 5 MPa pressure for 3 minutes. Decompression was performed for 30 seconds to eliminate gases that can cause voids in the panel and then a compression was applied for another 7 minutes (Sugahara et al 2019). After that, the panel was squared and stored in an appropriate place.…”

“…One possibility of reducing wood consumption as panels is the use of lignocellulosic residues to produce cleaner and more ecological (Fiorelli et al 2013;Keskin et al 2015). These residues may consist of corn ears (Paiva et al 2012), poppy particles (Keskin et al 2015), sugarcane bagasse (Fiorelli et al 2013;Hofsetz & Silva 2012;Sugahara et al 2019), and residues from the pulp and paper industry (Elliott & Mahmood 2007;Mäkelä et al 2012).…”

A new model based on principal component regression-random forest for analyzing and predicting the physical and mechanical properties of particleboard

“…A traditional orthogonal test is typically used to study the influence of process parameters on the physical properties of the final panel, as demonstrated by Wu et al (2016). Sugahara et al (2019) manufactured particleboard using bagasse and eucalyptus slag pulp and tested its properties, i.e., the static bending strength, and internal bond strength. It was shown that the use of bagasse and eucalyptus slag in the production of high-density particleboard was feasible.…”