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All Journal Jurnal Sylva Lestari Indonesian Journal of Forestry Research
Kenji Umemura
Laboratory of Sustainable Materials, Research Institute for Sustainable Humanosphere, Kyoto University
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology

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Effectiveness of Nanocatalyst in the Improvement of Sorghum Bagasse Particleboard Bonded with Bio-Adhesive Yunia Frida Adelka; Deni Purnomo; Sudarmanto; Narto; Bernadeta Ayu Widyaningrum; Murni Handayani; Jajang Sutiawan; Kenji Umemura; Dede Hermawan; Sukma Surya Kusumah
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.765

Abstract

Modification in the manufacturing process of bio-adhesive need to be carried out to improve the properties of sorghum bagasse particleboard, such as adding nanocatalyst into the bio-based adhesive. This study was conducted to determine the effectiveness of nanocatalyst in enhancing the properties of sorghum bagasse particleboard. Each nanocatalyst, such as zinc oxide (ZnO) and graphene oxide (GO), has been added to the citric acid and molasses-based adhesives. The target density of the particleboard was 0.8 g/cm3, with a board size of 350 mm × 350 mm × 6 mm. The particleboard was pressed using a hot-pressing machine at a temperature of 200°C and 10 MPa of pressure for 10 min. The physical and mechanical properties of the particleboard were evaluated, referring to JIS A 5908:2022 standard. The result showed that adding GO into the citric acid-based adhesive obtained a higher modulus of rupture (MOR) and lower thickness swelling (TS) than the others. Consequently, adding GO is more effective than adding ZnO into the bio-based adhesive in enhancing the properties of the particleboard. Keywords: bagasse sorghum, citric acid, molasses, Nanocatalyst GO, Nanocatalyst ZnO
UTILIZATION OF CITRIC ACID AS BONDING AGENT IN SEMBILANG BAMBOO (Dendrocalamus giganteus Munro) PARTICLEBOARD PRODUCTION Firda A. Syamani; Agus Z. Arifqi; Sasa S. Munawar; Sudarmanto Sudarmanto; Lilik Astari; Kurnia W. Prasetiyo; Mohamad Gopar; Ismadi Ismadi; Sukma S. Kusumah; Mohd. H. Hussin; Subyakto Subyakto; Yusuf S. Hadi; Kenji Umemura
Indonesian Journal of Forestry Research Vol. 9 No. 1 (2022): Indonesian Journal of Forestry Research
Publisher : APTKLHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2022.9.1.99-120

Abstract

Citric acid was utilized as a bonding agent in the production of Sembilang bamboo particleboard. The limitation in using bamboo for particleboard production is that the silica content in bamboo skin can accelerate particleboard processing machines' bluntness and reduce particle adherence in particleboard manufacturing. This research aimed to investigate the influence of bamboo skin and citric acid content on the characteristics of Sembilang bamboo particleboard. Particleboards were prepared using bamboo particles (type A) and unskinned bamboo particles (type B). The citric acid solution (59%) was sprayed over the surface of bamboo particles to obtain three different levels of citric acid, i.e., 15, 20, and 25 % (based on bamboo particles’ dry weight). The Sembilang bamboo particleboards were manufactured using a hot-pressing machine at 200°C, 5 MPa for 10 min. The particleboard targeted density was 0.8 g/cm3. The type B particleboards’ internal bond (IB), modulus of rupture (MOR), water absorption (WA), and thickness swelling (TS) were superior compared to the type A particleboards. This was influenced by the lower concentration of silica in type B particleboards, which tend to allow an intimate contact area among particles and citric acid then produced better quality particleboards compared to type A particleboards. The type B particleboards met the obligation of JIS A 5908 for type 18 particleboard in terms of modulus of rupture, modulus of elasticity, and internal bond, however, only fulfilled the type 8 particleboard in terms of screw holding power.
Co-Authors Agus Z. Arifqi Bernadeta Ayu Widyaningrum Dede Hermawan Deni Purnomo Firda A. Syamani Ismadi Ismadi Jajang Sutiawan Kurnia W. Prasetiyo LILIK ASTARI Mohamad Gopar Mohd. H. Hussin Murni Handayani Narto Sasa S. Munawar SUBYAKTO SUBYAKTO Sudarmanto Sudarmanto Sudarmanto Sukma S. Kusumah Sukma Surya Kusumah Yunia Frida Adelka YUSUF S. HADI