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All Journal Jurnal Sylva Lestari
Muhammad Iqbal Adi Baskara
Department of Forest Products, Faculty of Forestry and Environment, IPB University
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology

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Physical and Mechanical Properties of Oriented Strand Board from Three Species of Plantation Forests at Various Resin Contents Muhammad Iqbal Adi Baskara; Doni Hapsoro; Muhammad Iqbal Maulana; Marwanto; Denni Prasetia; Wahyu Hidayat; Muhammad Adly Rahandi Lubis; Nam Hun Kim; Fauzi Febrianto
Jurnal Sylva Lestari Vol. 10 No. 1 (2022): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v10i1.519

Abstract

The objective of this study was to determine the physical and mechanical properties of oriented strand board (OSB) from three wood species of plantation forests, i.e., Afrika (Maesopsis eminii), mangium (Acacia mangium), and sengon (Paraserianthes falcataria) at various resin contents. OSB was made with a shelling ratio (face:core:back) of 1:2:1 and a target density of 0.6 g/cm3. Methylene diphenyl di-isocyanate (MDI) adhesive was used with 3%, 5%, and 7% resin contents. 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 improved as the resin content increased for all wood species. OSB prepared from Afrika and mangium wood strands with 7% resin content showed better physical and mechanical properties than the other OSBs. Thickness swelling of OSB prepared from three wood species had met the CSA O437.0 (Grade O-1) standard. All OSBs produced in this experiment met the standard for MOR parallel and perpendicular to the grain. OSB from three wood species with a 5% and 7% resin content met the standard for MOE perpendicular to the grain. Only mangium OSB with a resin content of 7% met the standards for MOE parallel to the grain. Afrika OSB with 5% and 7% resin content, mangium OSB with 5% resin content, and sengon OSB with 3% and 7% resin content met the standard for the internal bond. Keywords: Acacia mangium, Maesopsis eminii, Methylene diphenyl di-isocyanate, Oriented strand board, Paraserianthes falcataria
Characteristics of Polyurethane Cross-Laminated Timber Made from a Combination of Pine and Coconut Muhammad Iqbal Adi Baskara; Yusuf Sudo Hadi; Muhammad Adly Rahandi Lubis; Muhammad Iqbal Maulana; Rita Kartika Sari; Fauzi Febrianto; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 11 No. 2 (2023): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i2.691

Abstract

The objective of this study was to assess the properties of cross-laminated timber (CLT) fabricated from the combination of Sumatran pine (P) and coconut trunk (C) bonded with polyurethane adhesive. The basic properties of raw materials and adhesives were characterized. The CLT panels’ length, width, and thickness are 100 cm by 30 cm by 3.6 cm, respectively. Three-layer CLT was made with 4 combinations of face/core/back lamina, i.e., PPP, CCC, PCP, and CPC, which are arranged perpendicular to each other. The laminae were bonded using PU adhesive on 160 g.m-2 glue spread. The CLT’s delamination and wood failure percentages (WFP) were assessed following the JAS 3079 (2019) standard. The study’s results demonstrated that the PU adhesive employed in this investigation could curl ideally at 30°C for 200 min. Solid pine and coconut’s physical and chemical characteristics differed, but their wettability to polyurethane adhesives was identical. Hybrid pine CLT has greater attributes compared to single pine CLT. Single coconut CLT, on the other hand, offers better features than hybrid coconut CLT. All CLT samples failed to fulfil the JAS 3079 (2019) requirement for delamination (=< 10%) and WFP (>= 90%). Keywords: Coconut trunk, cross-laminated timber, layer combination, pine wood, polyurethane adhesive
Co-Authors Denni Prasetia Doni Hapsoro Fauzi Febrianto Marwanto Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Iqbal Maulana Nam Hun Kim Rita Kartika Sari Wahyu Hidayat Yusuf Sudo Hadi