The potential of utilising bamboo culm (Gigantochloa scortechinii) in the production of structural plywood

Uyup, Mohd Khairun Anwar and Ashaari, Zaidon and Md. Tahir, Paridah and Wahab, Razak (2004) The potential of utilising bamboo culm (Gigantochloa scortechinii) in the production of structural plywood. Journal of Bamboo and Rattan, 3 (4). pp. 393-400. ISSN 1569-1586

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The potential of utilising 4-year-old Gigantochloa scortechinii culms for structural plywood was evaluated based on their gluing, physical and mechanical properties. Bamboo strips (without epidermis) were glued together edge to edge using polyvinyl acetate to produce a ply of 400 mm x 400 mm x 4 mm. The plies were assembled perpendicularly to each other to form a bamboo plywood of three plies. Phenol formaldehyde was used as a binder. The assembly time of the adhesive was 30 min. The hot press temperature and pressure were 140°C and 1.4 N/mm2, respectively, and they were maintained for 6.5 min. A commercial structural grade 5-ply plywood (Hopea sp.) with the same thickness of the bamboo plywood (12 mm) was used for comparison purposes. The bonding strength of bamboo plywood meets the minimum standard requirement of the Malaysian Standard. The modulus of rupture (MOR), modulus of elasticity (MOE) and compression parallel to grain of the bamboo plywood were significantly higher compared to commercial plywood. The values were 65.4 vs. 42.0 N/mm 2 for MOR and 8955 vs. 4583 N/mm2 for MOE and 35.39 vs. 19.93 N/mm2 (compression parallel to grain). The width expansion and thickness swelling of bamboo plywood (after soaking in water 24 h) were markedly higher than commercial plywood, i.e. 1.51 vs. 0.43% and 5.44 vs. 4.42%, respectively.

Item Type:Article
Keyword:Bamboo plywood; Gigantochloa scortechinii; Phenol formaldehyde; Ply
Subject:Plywood industry
Subject:Bamboo - Research - Malaysia
Faculty or Institute:Faculty of Forestry
DOI Number:10.1163/1569159042464653
ID Code:18405
Deposited By: Azwana Abdul Rahman
Deposited On:26 Nov 2011 04:11
Last Modified:26 Nov 2011 04:11

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