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Pengaruh Panjang Strand terhadap Kualitas Oriented Strand Board dari Bambu Tali (Gigantochloa apus Kurz.)

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ABSTRAK

MUHAMMAD IDRIS. Pengaruh Panjang Strand terhadap Kualitas

Oriented Strand Board dari Bambu Tali (Gigantochloa apus Kurz.). Dibawah bimbingan APRI HERI ISWANTO dan TITO SUCIPTO.

Penelitian ini bertujuan untuk mengevaluasi pengaruh panjang strand terhadap kualitas OSB dari bambu tali. Perlakuan dari penelitian ini adalah ukuran panjang strand 5, 10, 15, 20, dan 25 cm. Papan dibuat berukuran 25x25 cm2 dengan target ketebalan dan kerapatan masing-masing sebesar 1 cm dan 0,7 g/cm3. OSB dibuat 3 lapis bersilang tegak lurus dengan komposisi face:core:back sebesar 1:2:1. Perekat yang digunakan dalam penelitian ini adalah isosianat tipe H3M dengan kadar perekat 5% dan solid content 98%. Pencetakan lembaran papan dengan menggunakan kempa panas pada suhu 1600C selama 5 menit dengan tekanan 25 kgcm-2. Hasil penelitian menunjukkan bahwa parameter sifat fisis telah memenuhi standar JIS A 5908 (2003) kecuali kadar air. Parameter sifat mekanis secara keseluruhan telah memenuhi standar. MOR dan MOE menunjukkan kecenderungan semakin panjang strand yang digunakan menyebabkan peningkatan MOR dan MOE, tetapi pada internal bond terjadi sebaliknya.

Kata kunci: oriented strand board, Gigantochloa apus, isosianat, panjang strand.

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ABSTRACT

MUHAMMAD IDRIS. Effect of Strand Length on Oriented Strand Board Quality made from Tali Bamboo (Gigantochloa apus Kurz). Under supervised

APRI HERI ISWANTO and TITO SUCIPTO.

The objective of this research was to evaluate the effect of strand length on OSB quality made from Tali bamboo. Variation of strand length that used in this research was 5, 10, 15, 20 and 25 cm. The size of boards, thickness and density

target were 25x25 cm2, 1 cm, and 0,7 g/cm3 respectively. OSB was manufactured

in three layer with perpendicular strand orientation for each layers. Layers ratio in face:core:back was 1:2:1. The amount of 5% Isocyanate resin (H3M type) with 98% solid content for binding in manufacturing of board. After mat forming, the

next step was hot pressing process in 1600C temperature for 5 minutes and

25 kgcm-2 pressure. The results showed that parameter of physical properties had

fulfill requirement of JIS A 5908 (2003) except of moisture content. Furthermore, overall the parameter of mechanical properties had fulfill those standard. Trend of MOR and MOE showed that increasing of strand length caused of increasing those parameter, but the opposite trend occured on internal bond.

Keywords: oriented strand board, Gigantochloa apus, isocyanate, strand length.

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