PENGARUH UMUR POHON, POSISI BATANG, TEBAL VENIR DAN KOMPOSISI PANEL INTI SAWIT TERHADAP PRODUKSI KAYU LAPIS MINDI
Main Article Content
Abstract
This study examined the effect of tree age, trunk position, veneer thickness, and composition of panel core of oil
palm wood on mindi plywood production. Oil palm logs of 1.3 m length were cut from two sources of trees with different
ages, i.e. 25 and 32 years old. Four logs were collected from the bottom toward the top of each tree in which ten trees from
respective age classes were selected randomly and cut into logs. Logs from each age class were peeled in spindleless rotary
machine respectively into two thickness of veneer, i.e. 2.5 and 3.4 mm. Dried veneers (MC 10%) were assembled into
two kinds of panel, i.e. 3 and 5 plies, where the face and back layer were made using 1.2 mm veneer of mindi (Melia
azedarach) wood. Results showed that trunks from the 32 year old tree have higher green and dry veneer recoveries
than those of the 25 year old tree. Moisture content and density of the 25 year old panels core are lower than those
made from the 32 year old veneer. Bonding strength of panels made from the 32 year old core veneer is higher than that
made from the 25 year old veneer. The 3 layer panels have higher bond strength than those of the 5 layer panel. Panels
made from 2.5 mm core veneers have lower bonding strength than those made from 3.4 mm veneers.
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