Production and evaluation of particleboards made of coconut fibers, pine, and eucalyptus using bicomponent polyurethane-castor oil resin

This research examined the influence of compositions between coconut fiber (Cocos nucifera) and wood particles (Pinus taeda L. Eucalyptus saligna) on physico-mechanical properties homogeneous particleboards. The exploratory study was carried out under Tukey’s contrast test means, at 5% significance level, with following compositions: 100% (F100 P0 E0); 50% fiber, 25% pine particles, eucalyptus (F50 P25 E25); (F0 P50 E50), particle moisture content 0% to 2% 10%, in mass, polyurethane-castor oil (PU-Castor) resin. Three panels were produced for each composition. such as density, content, swelling thickness after 24 h immersion water, perpendicular tensile strength, static bending modulus elasticity evaluated using standard methods. results obtained indicated potential production particleboards view minimum criteria required by normative documents, emphasis physical property hours, which a statistically equivalent average relative treatment that contained only particles.