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M l Iskandar
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SIFAT PAPAN WOL KAYU DARI 8 JENIS KAYU MALUKU UTARA I M Sulastiningsih; Paribotro Sutigno; M l Iskandar
Jurnal Penelitian Hasil Hutan Vol 13, No 2 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4540.253 KB) | DOI: 10.20886/jphh.1995.13.2.77-86

Abstract

The result of  laboratory  test of wood-wool board properties  manufactured from 8 individual wood species  obtained from  North Maluku  are  reported  in this paper.   The  tests  comprising board density,  moisture  content,   thickness  reduction  due  to  compression,   and bending  strength.The study  reveals that  the  average yield  of wood-wool  is  492. 75 kg/m3  of log  input.   The wood-wool  of  Parinari   corymbosa,   Shorea    koordersii,    Hopea   sp.   and  Horsfieldia        sylvestris  must  be  soaked   in  cold  water  for 24 hours prior  to  wood-wool board manufacture,      while the otherfour  species  do not  require   the soaking.  The physical  and mechanical  properties   of wood- wool board from  seven  wood species  mineralized   with Ca CJ 2  are in comformity with  the DIN 1 101   standard.    Only six  wood species,   however,    mineralized    with Ca(OH)2 suspension   meet  the  standard  requirement.     The  identical  commercial   name of wood not  necessarily  produce  a comparable  quality  board.   Apart  from  the  species,   growth  and  environmental   factors   are believed  to contributing  to board properties.
PENGARUH UKURAN BILAH KAYU SENGON TERHADAP BEBERAPA SIFAT PAPAN BlOK l M Sulastiningsih; Paribotro Sutigno; M l Iskandar
Jurnal Penelitian Hasil Hutan Vol 13, No 5 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2180.091 KB) | DOI: 10.20886/jphh.1995.13.5.186-195

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.
SIFAT PAPAN WOL KAYU DARI 8 JENIS KAYU MALUKU UTARA I M Sulastiningsih; Paribotro Sutigno; M l Iskandar
Jurnal Penelitian Hasil Hutan Vol 13, No 2 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1995.13.2.77-86

Abstract

The result of  laboratory  test of wood-wool board properties  manufactured from 8 individual wood species  obtained from  North Maluku  are  reported  in this paper.   The  tests  comprising board density,  moisture  content,   thickness  reduction  due  to  compression,   and bending  strength.The study  reveals that  the  average yield  of wood-wool  is  492. 75 kg/m3  of log  input.   The wood-wool  of  Parinari   corymbosa,   Shorea    koordersii,    Hopea   sp.   and  Horsfieldia        sylvestris  must  be  soaked   in  cold  water  for 24 hours prior  to  wood-wool board manufacture,      while the otherfour  species  do not  require   the soaking.  The physical  and mechanical  properties   of wood- wool board from  seven  wood species  mineralized   with Ca CJ 2  are in comformity with  the DIN 1 101   standard.    Only six  wood species,   however,    mineralized    with Ca(OH)2 suspension   meet  the  standard  requirement.     The  identical  commercial   name of wood not  necessarily  produce  a comparable  quality  board.   Apart  from  the  species,   growth  and  environmental   factors   are believed  to contributing  to board properties.
PENGARUH UKURAN BILAH KAYU SENGON TERHADAP BEBERAPA SIFAT PAPAN BlOK l M Sulastiningsih; Paribotro Sutigno; M l Iskandar
Jurnal Penelitian Hasil Hutan Vol 13, No 5 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1995.13.5.186-195

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.
Co-Authors Ignasia Maria Sulastiningsih Paribotro Sutigno