| dc.description.abstract | Waste of cassava leaves are an organic waste with a lignocellulose that has the
potential to be an alternative raw material for particleboard. Its utilization can be
a solution to the limited wood supply caused by increasing deforestation rates. This
study aims to optimize the particleboard manufacturing process from waste of
cassava leaves by varying the isocyanate adhesive content, pressing temperature,
and number of fiberglass reinforcement layers. Waste of cassava leaves is used as
an alternative source of lignocellulose to replace wood, with the addition of
shavings of belangke bamboo (Gigantochloa pruriens) as reinforcement. The study
was conducted in three stages: (I) varying the adhesive content of 4%, 6%, and 8%;
(II) varying the pressing temperature of 130–170°C; and (III) varying the number
of fiberglass layers (4, 8, and 12 sheets) on the permukaan of the board with a
board size of 25x25x1 cm. Particleboard samples were tested for physical,
mechanical, and microscopic properties. The results of the board testing were
physical properties including density ranging from 0,50-0,53g/cm3 (in phase
I), 0,57-0,61g/cm3 (in phase II), 0,57-0,81g/cm3 (in phase III), moisture content
ranging from 8,45-9,02g/cm3 (in phase I), 6,90-9,75g/cm3 (in phase II), 3,77-
7,54g/cm3 (in phase III), water absorption ranging from 20,56-51,84% (in phase
I), 39,50- 48,96% (in phase II), 22,55-49,11% (in phase III), thickness swelling
ranging from 8,92-26,20 (in phase I), 39,50-48,96 (in phase II), 8,86-11,46 (in
phase III) and mechanical properties include MOE ranging from 3.745-5.138 (in
phase I), 5.992-12.543 (in phase II), 8.561-36.713 kgf/cm2 (in phase III), MOR
ranging from 30,2- 45,4 kgf/cm2 (phase I), 45,89-84,28 kgf/cm2 (phase II), 84,09-
176,34 kgf/cm2 (phase III) and IB ranging from 0,37-0,95 (in phase I), 0,31-1,27 (in
phase II), 0,54-0,73 (in phase III). Optimization of adhesive content, pressing
temperature, and fiberglass layers was conducted to achieve stronger internal
bonding, optimal curing, and improved surface reinforcement. These factors
directly enhance the physical and mechanical properties of the particleboard to
meet quality standards. The highest values in the physical and mechanical
properties tests were obtained from the boards treated with 8% adhesive content, a
pressing temperature of 160°C, and the application of 12 layers of fiberglasS. | en_US |
