KARAKTERISTIK ORIENTED STRAND BOARD DARI KAYU AKASIA DAN AFRIKA BERDASARKAN PENYUSUNAN ARAH STRAND
ABSTRACT: The research
objectives arc to evaluate physical and mechanical properties of OSB based on
strands orientation; and to evaluate physical and mechanical properties of OSB
made from akasia wood (Acacia mangium Wild) and afrika wood (Maesopsis eminii
Engl). Akasia and afrika wood are used for OSB strand material with phenol
formaldehyde (PF) as adhesives and addition of paraffin. OSB made in this
research is consist of three plies whereas are differed into eight (8) strand
orientations. In the making process, hot press was carried out at 160OC and
pressure 25kg.cm-2 for 15 minutes. Determination of OSB physical and mechanical
properties is referred to JIS A 5908-2003. Result showed that strand
orientations has no affect to OSB physical properties except for linicr
swelling 24h, but it significantly influence all mechanical properties of OSB.
Wood species have an effect on mechanical properties of OSB in the dry test,
wet MOE lengthwise test and OSB physical properties, particularly to OSB
density and water absorbing capability at 2h and 24h. All of OSB physical
properties arc meet JIS A 5908-2003 standard, but not all of the mechanical
properties such as dry MOE lengthwise, dry MOE and MOR widthwise. The best
physical and mechanical properties is presented by OSB made from akasia wood in
strand orientation F, G, Band C whereas all parameters meet JIS A 5908-2003
standard. In comparation with strand orientation B that is frequent used in
industry, strand orientation F and G arc proficient to raise the modulus
elasticity value (MOE) and strength (MOR) as much as 167.81-231.65% and
89.73-109.87%, respectively; especially in widthwise board application.
Furthermore, strand orientation F and G arc more flexible as structural
components.
Penulis: Nurhaida, Naresworo
Nugroho, Dede Hermawan
Kode Jurnal: jppertaniandd080108
