PENGARUH UKURAN BILAH KAYU SENGON TERHADAP BEBERAPA SIFAT PAPAN BlOK

l M Sulastiningsih, Paribotro Sutigno, M l Iskandar

Abstract


Experimental blockboards (5-ply)were made of sengon wood (Earaserianthes falcataria) glued with urea formaldehyde. Thickness of veneers were 2 mm for face and back layers and 3 mm for cross core layer. The dimension of strip (core layer) divided into two different thickness (I cm and 1.5 cm) and three different width (0.7 cm; 2.5 cm and 7.6 cm). The blockboard properties were tested according to the Indonesian Standard (SNI), Japanese Standard (JAS) and Germany Standard (DIN) included moisture content, density, bending strength, moisture resistant bonding strength and delamination. The objective of this study was to determine the effect of strip dimension on some properties of sengon blockboard.

The result revealed that the average density of sengon blockboard was 0.33 g/m3. The width of strip affected the thickness swelling and the length expansion of sengon blockboard but the width expansion. The thickness of strip affected the width and length expansions however did not affect the thickness swelling of sengon blockboard. The moisture resistant bonding strength of sengon blockboard with all treatments based on tensile strength and delamination tests met the SNI and JAS requirements. Compared with DIN Standard the sengon blockboard that met the bending strength requirement only that made of strip with 0. 7 cm in width and 1 cm thick. Indonesian Standard for blockboard does not require bending strength test.


References


Anonim. 1966. Plywood and Other Wood-based Panels Food. and Agriculture Organization. Rome.

Japanese Agriculture Standard of Common Plywood and its Commentary. The Japan Plywood Inspection Corporation. The Japan Plywood Manufacturers Association. Tokyo.

DIN Taschenbuch 60, Beuth Verlag Gmbh, Berlin.

Rancangan Standar Nasional Indonesia (SNI). Mutu Papan Blok. Dewan Standardisasi Nasional, Jakarta.

Hidayat, N.,B. Tambunan clan P. Sutigno. 1978. Papan Blok dengan Berbagai Jenis danTebal Venir. Kehutanan Indonesia 5 (1): 28-32.

Kliwon, S., M.I, Iskandar dan P. Sutigno. 1987. Sifat Papan Blok dengan Inti Limbah Eksploitasi Hutan Lampung. Jurnal Penelitian Hasil Hutan 4 (2) : 16-20.

Martawijaya, A.,I. Kartasujana, Y.I. Mandang, S.A. Prawira, K. Kadir. 1989. Atlas Kayu Indonesia Jilid II, Badan Penelitian clan Pengembangan Kehutanan, Bogor.

Northcott, P.L. 1955. Bond Strength as Indicated by Wood Failure or Mechanical Test. Forest Products Journal 2 (5): 118-123

Oey Djoen Seng. 1964. Berat Jenis Dari Jenis-jenis Kayu Indonesia dan Pengertian Beratnya Kayu untuk Keperluan Praktek. Pengumuman LPHH No. 1, Bogor.

Prajadinata, S dan Masano. 1989. Teknik Penanaman Sengon (Albizia Falcataria L.FOsberg). Informasi Teknis No. 6. Pusat Penelitian dan Pengembangan Hutan, Bogor.

Snedecor, G. W. and W.G. Cochram. 1971. Statistical Methods. Sixth Edition. The Iowa State University Press. Ames, Iowa USA.

Sulastiningsih, I.M. dan Paribotro Sutigno. 1986. Hubungan Beberapa Sifat Kayu Lapis. Duta Rimba 12 (77-78): 18-27.

Sutigno, P. 1991. Kayu Majemuk Perkembangan dan Masa Depannya di Indonesia. Orasi Pengukuhan Ahli Peneliti Utama. Badan Penelitian dan Pengembangan Kehutanan, Jakarta.




DOI: https://doi.org/10.20886/jphh.1995.13.5.186-195

Refbacks

  • There are currently no refbacks.


JURNAL PENELITIAN HASIL HUTAN INDEXED BY:

More...


Copyright © 2015 | Jurnal Penelitian Hasil Hutan (JPHH, Journal of Forest Products Research)

eISSN : 2442-8957        pISSN : 0216-4329

       

JPHH is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.