Sifat Fisis dan Mekanis Oriented Strand Board Tiga Jenis Kayu Hutan Tanaman pada Berbagai Kadar Perekat

Abstract

Tujuan penelitian ini adalah untuk menganalisis sifat fisis dan mekanis oriented strand board dari tiga jenis kayu afrika (Maesopsis eminii), mangium (Acacia mangium), dan sengon (Paraserianthes falcataria) dari hutan tanaman pada berbagai kadar perekat. Oriented strand board dibuat dengan nisbah lapisan (face:core:back) 1:2:1 dan kerapatan target 0,6 g/cm3. Perekat methylene diphenil di-isocyanate (MDI) digunakan pada kadar perekat 3%, 5%, dan 7%. Sifat fisis dan mekanis dievaluasi berdasarkan standar JIS A 5908:2003 dan hasilnya dibandingkan dengan standar OSB komersial CSA 0437.0 (Grade O-1). Hasil menunjukkan bahwa sifat fisis dan mekanis OSB meningkat seiring bertambahnya kadar perekat pada semua jenis kayu. Beberapa sifat fisis dan mekanis OSB memenuhi standar CSA 0437.0 (Grade O-1). Oriented strand board dari kayu afrika dan mangium dengan kadar perekat 7% memiliki sifat fisis dan mekanis yang lebih baik dibanding OSB lainnya.

The objective of this study was to determine the physical and mechanical properties of oriented strand board from three wood species of plantation forests i.e. afrika (Maesopsis eminii), mangium (Acacia mangium), and sengon (Paraserianthes falcataria) at various resin content. Oriented strand board was made with a shelling ratio (face:core:back) of 1:2:1 and target density of 0,6 g/cm3. Methylene Diphenyl di-Isocyanate (MDI) adhesive was used with 3%, 5%, and 7% resin content. The physical and mechanical properties were evaluated based on JIS A 5908:2003 standard and the values were compared with CSA 0437.0 (Grade O-1) standard. The results show that the physical and mechanical properties of the OSB were increased as the resin content increased for all wood species. Some of the physical properties of the three wood species have met the standard criteria for CSA O437.0 (Grade O-1). Some of the mechanical properties of the OSB of the three wood species increase with increasing resin content. Oriented strand board prepared from africa and mangium wood with 7% resin content shows better physical and mechanical properties compared to the other OSB.