PENGARUH KADAR EKSTENDER TEPUNG BIJI ALPUKAT TERHADAP MUTU KAYU LAPIS DAMAR (Agathis alba Foxw)
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Abstract
The addition of extender in the adhesive mixture may reduce the cost of gluing in the plywood manufacture. The extender addition should not reduce the plywood quality in term of internal bonding. This paper examines the use of avocado seeds flour as an extender in the manufacture of damar plywood (Agathis alba Foxw.). Based on the total mixture weight, the seeds flour was grouped into three concentrations of 10%, 20% and 30%. The main adhesive used was Urea Formaldehyde (UF) and parameters tested includes moisture content, density and internal bonding strength. Results show that the average of plywood moisture content, density and internal bonding strength were 7.46%, 0.48 g/cm , 11.77 kg/cm , respectively. The moisture content and bonding strength of damar plywood meets the Indonesian National Standard (SNI). The maximum bonding strength was achieved by plywood with an extender of 10% avocadoseed's flour. The variation of extender contents shows the pattern of the greater the extender content the the lower the internal bonding strength.
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References
Standard Nasional Indonesia (SNI). (2002). (SNI 01-5008.2-2000). Kayu lapis penggunaan umum. Badan Standardisasi Nasional.
Hendradi, T.C. (2006). Statistik six sigma dengan Minitab. Panduan cerdas inisiatif kualitas. Yogyakarta: Andi Offset.
Santoso, A., Hadi, Y.S., & Juliati, R. (2010). Pengaruh kadar ekstender dan waktu kempa terhadap sifat fisis mekanis LBV dengan perekat phenol formaldehida. Jurnal Penelitian Hasil Hutan, 28(4),380-393.
Santoso, A. & Sutigno, P. (2004). Pengaruh tepung gaplek dan dekstrin sebagai ekstender perekat Urea Formaldehida terhadap keteguhan rekat kayu lapis kapur. Jurnal Penelitian Hasil Hutan, 22(2), 61-68.
Sari, M.N., Rosidah & Rahman, Y.M. (2008). Jurnal Ilmu Kehutanan, 2(1), 48-54.
Siruru, H. (2006). Pengaruh ekstender dan bahan pengisi perekat Urea Formaldehida terhadap delaminasi papan blok. Jurnal Agroforestri, 1(3), 19-25.
Sudjana, (2004). Desain dan analisis eksperimen. Bandung: Tarsito.
Wahyuningsih, E. (1985). Pengaruh campuran sagu dan bungkil biji karet sebagai ekstender Urea Formaldehida terhadap keteguhan rekat kayu lapis meranti merah. (Skripsi Sarjana). Fahutan IPB, Bogor.
