Variasi Ukuran Partikel dan Perbandingan Kadar Perekat Urea Formaldehida dan Phenol Formaldehida terhadap Sifat Fisis dan Mekanis Papan Partikel Limbah Batang Kelapa Sawit

Abstract

JANNER WILLIAM GINTING: Variation of Particle Size and Comparison Adhesive Content Urea Formaldehida and Phenol Formaldehida on Physical and Mechanical Properties of Particleboard Made of Residu Oil Palm Trunks. Supervised by RUDI HARTONO and TITO SUCIPTO. The waste oil palm trunks is a alternative basic commodity manufacture particleboards. The purpose of this study was to evaluate the physical and mechanical properties with the influence particle size and comparison adhesive content urea formaldehida and phenol formaldehida. get the optimal size and comparison adhesive content of particleboard made of residu oil palm trunks. Board were made with size 25 cm x 25 cm x 1 cm with density of 0,7 gr/cm2 . Particleboard using urea formaldehida and phenol formaldehida adhesive, press 25 kg/cm2 for 10 minute and experiments were analyzed by factorial with completely randomized design in 3 particle size (20 mesh,35 mesh and 50 mesh) and 4 comparison adhesive content (45%:55%, 30%:70%, 15%:85% and 0%:100%). Particleboard was tested for density, moitusture content, water absorption, thickness swelling, internal bond, modulus of elasticity and modulus of repture. Result showed that comparison adhesive content, particle size and interaction comparison adhesive content and particle size have significant influence to the density, moisture content, thickness swelling, water absorbtion, MOE, MOR and IB. The result of the research so that density value 0,53-0,65 g/cm3 , moisture content 10,05%-12,68%, water absorption 47,5%-86,7%, thickness swelling 4,1%-12,6%, modulus of elasticity 4514–10481 kg/cm2 . modulus of repture 34–107 kg/cm2 and internal bond about 1,4-4,8 kg/cm2 . Density, moisture content, water absorbtion, thickness swelling and internal bond had filled SNI 03-2105-2006, modulus of repture and modulus of elasticity hasn’t filled the standard. Optimal condition was attained by combination of particle size and comparison adhesive content of 20 mesh and 0%:100%, were the density 0,63 g/cm3 , moisture content 12,55%, water absorption 86,69%, thickness swelling 10,2%, modulus of rupture 107 kg/cm2 , modulus of elasticity 10481 kg/cm2 and internal bond was 4,0 kg/cm2.