Macadamia (Macadamia integrifolia) shell and castor (Rícinos communis) oil based sustainable particleboard: A comparison of its properties with conventional wood based particleboard

摘要: Abstract The present study examines the suitability of particleboard made from ground macadamia nut shells bonded with castor oil derived resin as an environmentally sustainable substitute for conventional wood fiber/urea formaldehyde particleboards. properties shell were compared those a fiber/castor and particleboard. density was 43% higher than that its fiber counterpart, in keeping shells. Water absorption water-induced swelling much lower particleboard, being only one quarter value obtained This is consistent moisture reported previously internal bond strength similar particleboards based polyurethane. modulus rupture elasticity however about 50% counterpart. considered to be due, at least part, cellulose content Formaldehyde emissions less 5% typical urea Based on these findings it shell/castor have acceptable use built environment. Their good resistance makes them particularly attractive humid environments, such bathroom kitchen applications. Moreover, they environmental impact