Ketahanan Oriented Strand Board Bambu Betung dengan Perlakuan Steam pada Strand terhadap Cuaca (Durability of Oriented Strand Board Prepared from Steam -treated Betung Bamboo to Natural Weathering)

Sena Maulana, Muhammad QA Damanik, Marwanto Marwanto, Muhammad I Maulana, Adesna Fatrawana, Ihak Sumardi, Nyoman J Wistara, Fauzi Febrianto

Abstract


Penelitian ini bertujuan untuk mengevaluasi ketahanan oriented strand board (OSB) dari bambu betung (Dendrocalamus asper) (BOSB) dengan perlakuan steam pada strand terhadap cuaca. Strand diberi perlakuan steam pada suhu 126 ºC di bawah tekanan 0,14 MPa selama 1 jam. Tiga lapis BOSB dibuat dengan kerapatan target 0,7 g cm-3 yang direkat dengan perekat fenol formaldehida (PF) dengan konsentrasi 8%. Parafin ditambahkan sebanyak 1% dari berat kering oven strand. Bamboo oriented strand board dipaparkan pada cuaca terbuka di Dramaga, Kabupaten Bogor Jawa Barat (6°34’15.72’’Selatan 106°44’17.30’’Timur). Evaluasi sifat fisis dan mekanis BOSB sebelum dan sesudah dipaparkan di udara selama 2 dan 3 bulan dilakukan berdasarkan standar JIS A 5908:2003. Penentuan nilai nisbah retensi MOE dan MOR dilakukan dengan membandingkan nilai MOE dan MOR sebelum dan sesudah pemaparan. Hasil penelitian menunjukkan bahwa perlakuan steam pada strand dapat meningkatkan stabilitas dimensi dan sifat mekanis BOSB. Pemaparan BOSB pada cuaca terbuka dapat menurunkan stabilitas dimensi dan kekuatan BOSB. Ketahanan BOSB dengan perlakuan steam pada strand terhadap pemaparan alami lebih tinggi dibandingkan dengan tanpa perlakuan steam.


Keywords


Bambu betung; BOSB; cuaca; ketahanan; steam; durability; steam; weathering

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References


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