| dc.description.abstract | ZAINAL ABIDIN SYAH POLEM : The Influence of Composition Urea
Formaldehyde Adhesives and padding Styrofoam Particle Board on the Quality of
Waste Oil Palm Trunk. Supervised by TITO SUCIPTO and RUDI HARTONO.
The waste oil palm trunks be redundant is a alternative basic commodity
manufacture particleboards. The purpose of this study was to evaluate the
physical and mechanical properties with the influence temperature and pressing
time. Boards were made with size 25 cm x 25 cm x 1 cm with density of 0,75
gr/cm3
. Getting the best composition of adhesives and fillers. Particleboards using
urea formaldehidyde adhesive, press 25kg/cm2
dan experiments were analyzed by
non factorial with completely randomized design in 5 temperatures 130º, 130 and
pressing times 10 min . Particleboard was tested for density, moisture content,
water absorption, thickness swelling, modulus of rupture, compression strength
parallel to the surface and internal bond.
Result showed that pressing time and interaction temperature and pressing
time have between the mixing rate urea formaldehyde and styrofoam significant
influenced to the density. The combination of mixing optimal padding and
adhesive by combination UF 90 : ST 10 density was 0,0627 g/cm3 moisture
content was 7,45 %, water absorption was 91,03 %, thickness swelling was
9,99%, modulus of elasticity was 8660,58 kg/cm2
, modulus of rupture was 81,167
kg/cm2
and internal bond was 6,11 kg/cm2. | en_US |
