Effects of Steam Treatment on Physical and Mechanical Properties of Bamboo Oriented Strand Board
2017; The Korean Society of Wood Science Technology; Volume: 45; Issue: 6 Linguagem: Inglês
10.5658/wood.2017.45.6.872
ISSN2233-7180
AutoresSena Maulana, Imam busyra, Adesna Fatrawana, Wahyu Hidayat, Rita Kartika Sari, Ihak Sumardi, Nyoman J Wistara, Seung Hwan Lee, Nam–Hun Kim, Fauzi Febrianto,
Tópico(s)Wood Treatment and Properties
ResumoThe objective of this study was to evaluate the properties of bamboo oriented strand board (B-OSB) from andong (Gigantochloa psedoarundinacea) and betung (Dendrocalamus asper) with and without steam treatment. Strands were steam-treated at 126°C for 1 h under 0.14 MPa pressure. The extractive content of bamboo strands before and after steam treatment were determined according to a standard (TAPPI T 204 om-88). Three-layer B-OSB with the core layer perpendicular to the surface and back layers were formed and binded with 8% of phenol formaldehyde (PF) resin with the addition of 1% of wax. The evaluation of physical and mechanical properties of the boards were conducted in accordance with the JIS A 5908:2003 standard. The results showed that steam treatment of bamboo strands significantly reduced the extractive content. Steam treatment tended to increase the dimensional stability and mechanical properties of B-OSB from andong and betung. The results showed that the dimensional stability and bending strength of B-OSB from betung was higher than those of andong. The internal bond strength of B-OSB from andong was higher than betung owing to a greater amount of extractives dissolved during the steam treatment.
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