Properties of particleboards from Eucalyptus camaldulensis wood of different age trees
Properties of particleboards from Eucalyptus camaldulensis wood of different age trees
Tanvir Ahmad Qureshi
ABSTRACT
Particleboards were made with target density of 0.70
g/cm3 from different age trees of Eucalyptus
camaldulensis using flakes from 4 years (Class A), 6
years (Class B) and 8 years (Class C) old trees and
their mixtures; 50 percent A/50 percent B, 50 percent B/
50 percent C and 50 percent A / 50 percent C, bonded
with urea formaldehyde resin. Static bending, internal
bond, screw withdrawal, thickness swelling, water
absorption and linear expansion of particleboards for
each age class and their mixtures were determined.
Boards easily met industry specifications for all
properties except linear expansion. Overall, the
properties of the panels produced from 100 percent class
A flakes were significantly superior to those of 100
percent class C. the properties of the panels produced
from class B and C flakes were improved when they were
mixed with 50 percent class A flakes.
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March 1997
Vol. 47, Iss. 1
