<Note>Properties of Particleboard from Lesser-used Species I. : Albizia falcata Backer

Abstract

Flakeboards in the density range of 0.4-0.65 g/cm^3 were produced using Albizia falcata as raw material and a urea formaldehyde resin, a phenol-melamine formaldehyde resin, and an isocyanate compound as adhesives. Mechanical properties and dimen sional stability of boards were determined. Using long flakes from this low-density species, high MOE and MOR was obtained in relatively low-density board. Further improvements in internal bond strength and the dimensional stability in thickness direction may enable to produce boards sufficient for structural use. Isocyanate bonded board showed superior properties to those bonded with other adhesives.