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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu dan Teknologi Hasil Hutan
Mochamad Isa ISKANDAR
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Agriculture, Biological Sciences & Forestry

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Pengaruh Jenis Kayu dan Jumlah Lapisan Terhadap Sifat Venir Lamina Mochamad Isa Iskandar; Achmad Supriadi
Jurnal Ilmu Pertanian Indonesia Vol. 22 No. 1 (2017): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.255 KB) | DOI: 10.18343/jipi.22.1.34

Abstract

This study aims to determine the effect of wood species and the number of layers of veneer against laminated veneer properties. Wood species consist of sengon, pine, and mixed pine sengon. Laminated veener made by a number of layers consist of 4, 6, and 8 layers. The difference of a number of layers was to identify quality of laminated veneer. The adhesive used is urea formaldehyde (UF) liquid. The results showed that the average moisture content of 10.76%, density of 0.54 g/cm3, delamination 5.8%, MOE 124.108 kg/cm2, and MOR 450.74 kg/cm2. The moisture content and delamination made all meet the Indonesian National Standard. Statistically, wood species were a significant effect on moisture content, density, MOE, and MOR, while various of layers were a significant effect on moisture content, density, delamination, MOE, and MOR. The number of layer’s laminated veneer made higher of water content, density, delamination, and MOR.
Appearance of extractives matter as oil-form on wood surface has been causing problems in wood working, especially for laminated wood products and finishing. The problem of extractives on the oily keruing was observed to get the way how to overcome it so the wood utilization able to be increased by laminated wood manufacturing. The effect of the treatments on the oily keruing as laminated wood material has been done by boiling in the water, boiling in diesel fuel and cooking oil mixture, and pre Jamaludin MALIK; Mochamad Isa ISKANDAR
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 2 No. 1 (2009): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Appearance of extractives matter as oil-form on wood surface has been causing problems in wood working, especially for laminated wood products and finishing. The problem of extractives on the oily keruing was observed to get the way how to overcome it so the wood utilization able to be increased by laminated wood manufacturing. The effect of the treatments on the oily keruing as laminated wood material has been done by boiling in the water, boiling in diesel fuel and cooking oil mixture, and press-vacuum with paraffin addition. Comparison was done for inter-treatment and also to non oily keruing. The materials used were oily (Dipterocarpus gracilis), non oily (Dipterocarpus grandifloris) keruing and tannin-base glue. The observed parameters consist of visual appearance, moisture content, density, bonding strength and delaminating. Results indicated that moisture content of all treatment were not more than 15%, density range of 0.71-0.91 g/cm3 and average 0.79 g/cm3. The bonding strength of laminated wood ranges varied from 17.80 kg/cm2 to 37.73 kg/cm2 nd average 26.44 kg/cm2 (dry testing) and 1.81 kg/cm2-13.97 kg/cm2 and average 9.15 kg/cm2 (wet testing), while the delaminating ranges of 41.19% to 52.85% and average 45.52%. Generally, the treatment of boiling in mixture of diesel fuel and cooking oil with 6 : 1 in proportion, resulted increasing properties for laminated wood made of oily keruing.   Keywords : Extractives, oily keruing, tannin, laminated wood  
Co-Authors Achmad Supriadi Jamaludin MALIK