Variasi Berat Labur Perekat Urea Formaldehida terhadap Kualitas Papan Lamina dari Batang Kelapa Sawit dengan Pemadatan

Abstract

DAVID PANGIHUTAN PASARIBU: Variations of Urea Formaldehyde Glue Spread Adhesive against to Laminated Board Quality from Oil Palm Trunk with Compaction.. Under the guidance of RUDI HARTONO and TITO SUCIPTO. This study aimed to evaluate the effect of urea formaldehyde adhesive glue spread against to physical and mechanical properties of laminated board from oil palm trunks and get the best glue spread for manufacturing of laminated boards. In this study, laminated boards made from oil palm trunk with compaction and used urea formaldehyde adhesive (UF). The variation of glue spread treatment, were 240 g/m2 , 260 g/m2 , 280 g/m2 and 300 g/m2 . The board was compressed with 130 °C temperatures for 15 minutes, press for 25 kg/cm2 . This study used nonfactorial completely randomized design and the results are compared with standard JAS 243: 2003. The results showed that glue spread variation of UF adhesive on laminated board does not affect to the value of all physical and mechanical properties. Water content and delamination test values fullfilled the standard of JAS 243:2003, while the MOE and MOR values have not fullfilled the standard of JAS 243:2003. The value of density, water content, water absorption, thickness swelling, delamination ratio, MOE and MOR were 0.48-0.51 kg/cm3 , 6.89-8.54%, 50,16-61,81%, 8,20-10,55%, 0-7,63%, 40753.90 kg/cm² and 188.02-259.13 kg/cm² respectively. The best glue spread for laminated board made from oil palm trunk in the range of 240-300 g/m2 is 240 gr/m2.