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SIFAT PAPAN WOL KAYU DARI 6 JENIS KAYU HUTAN TANAMAN INDUSTRI I M Sulastiningsih; Rodjak Memed; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 7, No 2 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3754.764 KB) | DOI: 10.20886/jphh.1990.7.2.43-47

Abstract

The results  of  laboratory test of wood wool board properties made from 6 individual  wood  species obtained from East  Kalimantan, Jambi, South Sumatera and Maluku  province   are reported  in  this paper. The properties tested were board density, moisture content,   thickness  reduction  due to compression  and bending strength.The study   reveals that  average yield  of  wood  wool  is  348  kg per  cubic  meter  of log input. The wood  wool of Acacia mangium must be soaked  in  cold  water  for  24  hours  prior to  manufacturing  of  wood  wool  board, whereas  the other species can be processed  directly.The  physical and  mechanical  properties of  wood  wool  boards  made  from  three  wood  species (Shorea platyclados, Acacia mangium and Shorea leprosulaf) catalyzed with  CaCl2 solution were in conformity with  the DIN 1101  standard Nevertheless, only two  species  (S. platyclados and A. mangium) catalyzed with Ca(OH)2 suspension met the  standard requirement.
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 VENIR DAN KAYU LAPIS ENAM JENIS KAYU UNTUK HUTAN TANAMAN INDUSTRI Rodjak Memed; M I Iskandar; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 7, No 4 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4666.226 KB) | DOI: 10.20886/jphh.1990.7.4.139 - 145

Abstract

The characteristics studied are peeling  properties, physical properties of  the  veneer,  gluing  properties  and  some physical   and  mechanical  properties of  the  plywood  (both   triplex and  multiplex).All logs from 6 wood species could be peeled satisfactorily in cold condition. Veneer  of  1.5 mm  thickness could be produced at cutting angle  between  90° 30’- 92°.Average shrinkage of  the  veneer is 6.52% and  average veneer  swelling  from  oven  dry to air dry condition is 4.11%. Water resistant bonding  strength for all wood species  studied meet  Indonesian, Japanese and German  standard. Average thichness  reduction  due to pressing in the plywood  manufacturing  process  is 0.31mm.  The mechanical  properties of plywood vary among  the wood  species.
PENGARUH KOMPOSISI PEREKAT FENOL FORMALDEHIDA TERHADAP.KETEGUHAN REKAT KAYU LAPIS SENGON Rodjak Memed; Adi Santoso; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 8, No 3 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1710.446 KB) | DOI: 10.20886/jphh.1990.8.3.106-108

Abstract

In the future. phenol formaldehyde resin will be used in greater quantity due to ita capability inproducing weather and boil•proof plytDood. This paper discribet two aapects, i.e. ':  the effect of weight ratio of phenol and formaldehyde on the propemea  of phenol formaldehyde  resin and plywood  bonding strength; and the effect of filler proportion on the bond.inf ltrength of se111on plywood glued with phenol formaldehyde.77ae resulta showed that the properties of phenol formaldehyde resin which were produced in three different com- positions were met  Indonesian Standard. The effect of filler proportion on plywood  bonding strenfth waa significant, but the effect  of  weight ratio of phenol  formaldehyde and their interaction were not significant. The bond.inf strength of plywood  glued .with phenol  formaldehyde at 1111  compositio1u were conformed   with German standard for exterior ply- wood. The_ rwlati_onship between filler proportion and plywood  bonding strength could be exprwued by quadratic regreBBion.
PENGARUH KADAR PEREKAT DAN CAMPURAN KULIT TERHADAP SIFAT FISIS DAN MEKANIS PAPAN PARTIKEL TUSAM (Pinus merkusii) I M Sulastiningsih; Rozak Memed; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 5, No 4 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6125.755 KB) | DOI: 10.20886/jphh.1988.5.4.184-191

Abstract

The  laboratory   test  of  strength  properties   of pine  particleboard subtituted  with 0,  20, 40 and 60 percent of pine bark, glued  with  8, 10, and  12 percent   liquid  urea formaldehvde    (by particle  dry  weight  basis) is reported   in  this paper.  Pine  wood  and  its  bark  were obtained   from West Java.                                                                                                                                                    The result  shows  that  the substitution with  bark of  20,  40,  and  60 percent   of pine   wood  particle  improved   water absorption   and  thickness- swelling  properties;   however,  it decreased  mechanical properties of particleboard.  Particleboard with  high  bark  content   has lower  mechanical  properties   than  that  with  low  bark content.   The physical   and  mechanical properties   of  particleboard   that  is subtiuuted  with  20 and  40%  bark and  10 and  12%  urea-formaldehyde resin meet the FAO   standard   for   medium   density   particleboard,  except for,  modulus of rupture. If   we  compared  with  Indonesian standard,  the properties  that do not  meet  the standard  are the modulus  of rupture  and the internal  bond strength 
PENGARUH JENIS KAYU DAN PERMETHRIN TERHADAP KETEGUHAN REKAT DAN KEAWETAN KAYU LAPIS*) I M Sulastiningsih; Jasni Jasni; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 18, No 2 (2000): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2000.18.2.55-67

Abstract

Industri kayu lapis di Indonesia umumnya menggunakan jenis kayu yang mempunyai kelas awet rendah. Oleh karena itu untuk meningkatkan keawetan kayu lapis perlu dilakukan usaha pengawetan. Tujuan penelitian ini adalah untuk mengetahui pengaruh jenis kayu dan konsentrasi bahan pengawet permethrin terhadap keteguhan rekat dan keawetan kayu lapis. Metode pengawetan yang dipakai adalah metode pelaburan bahan pengawet pada venir. Bahan pengawet yang digunakan adalah larutan yang menganduug bahan aktif permetrin 36,8%. Konsentrasi bahan pengawet yang digunakan adalah 0%; 0,10%; 0,25%; 0,50%; 0,75% dan 1,00%. Jenis kayu yang digunakan adalah kayu karet dan kayu durian dengan tebal venir 1,5 mm. Kayu lapis yang dibuat berupa tripleks dengan perekat urea formaldehida. Pengujian keteguhan rekat dilakukan menurut Standar Indonesia dan Standar Jepang. Pengujian keawetan dilakukan terhadap rayap kayu kering (Cryptotermes cynocephalus Light) dan rayap tanah (Coptotermes curvignatus Holmgren).Hasil penelitian menunjukkan bahwa jenis kayu berpengaruh terhadap keteguhan rekat kayu lapis. Keteguhan rekat kayu lapis durian (16-32,91 kg/cm2) lebih tinggi daripada kayu lapis karet (12,07-27 kg/cm2). Konsentrasi bahan pengawet permethrin yang dilaburkan pada venir kayu karet dan kayu durian tidak mempengaruhi keteguhan rekat kayu lapis. NIlai keteguhan rekat kayu lapis semuanya memenuhi persyaratan Standar Indonesia dan Standar Jepang. Pelaburan bahan pengawet permethrin pada venir kayu karet dan kayu durian dengan konsentrasi 0,1% sudah cukup efektif menahan serangan rayap kayu kering maupun rayap tanah.
SIFAT PAPAN WOL KAYU DARI 17 JENIS KAYU IRIAN JAYA I M Sulastiningsih; Rozak Memed; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 4, No 4 (1987): 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.1987.4.4.48-52

Abstract

The result of laboratory tests on the properties of wood-woo/boards made from 17 wood species obtained from lrian Jaya are reported in this paper. The test comprised board density, moisture content, thickness reduction due to compression and bending strength.The study reveals that the average yield of wood-wool is 312 kg per cubic meter of log input.  The physical and mechanical properties of wood-wool boards from  five  wood species mineralized with CaCl2 solution or  Ca(OH)2 suspension are in compliance with the DIN 1101 standard. 
SIFAT PAPAN WOL KAYU DARI 10 JENIS KAYU NUSA TENGGARA BARAT l M Sulastiningsih; Rodjak Memed; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 9, No 5 (1991): 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.1991.9.5.183-188

Abstract

The results of laboratory   test of wood-wool  board properties made fram ten wood species obtained from Nusa  Tenggara province are reported in   this paper.   The properties tested were board  density,   moisture  content,  thickness  reduction  due  Io compression   and  benJing strengih.The Study  revealed   that the average yield of  wood-wool was 423,6 kg per cubic  meter of  log input.   The wood-wool   of  Anthoceplus cadamba  Miq.  and Anthocephallus  sp.  must  be soaked  in cold  water for  24 houn   prior  to manufacturing   of wood-wool   board,  whereas she other species did not require soaking.   The physical  and mechanical  properties  of wood-wool  board from  nine wood  species  mineralized  with CaCl2 solution  were in conformity   with the  DIN  1101 standard.  However, only  three wood  species   mineralized   with Ca   (OH)2  suspension met  the standard  requirement.
SIFAT PAPAN WOL KAYU DARI 20 JENIS KAYU KALIMANTAN TIMUR Rozak Memed; Paribotro Sutigno; M Isa Iskandar
Jurnal Penelitian Hasil Hutan Vol 1, No 4 (1984): 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.1984.1.4.8-13

Abstract

The results of  laboratory test on the properties of  wood-wool boards manufactured from  20  individual wood species obtained from East Kalimantan province are reported in this paper.  The tests comprised board density, moisture content thickness reduction due to compression and bending strength.The results reveal an average yield of wood-wool of 419 kg per cubic meter of log input, and CaCl2 mineralizing fluid produced better quality boards compared with those using Ca (OH)2. 
PENGARUH PENAMBAHAN UREA DAN AMONIUM KARBONAT PADA PEREKAT UREA FORMAIDEHIDA TERHADAP EMISI FORMALDEHIDA DAN SIFAT FISIS-MEKANIS PAPAN PARTIKEL Paribotro Sutigno; Adl Santoso
Jurnal Penelitian Hasil Hutan Vol 9, No 2 (1991): 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.1991.9.2.63 - 69

Abstract

The  formaldehye  emission  of  particleboard  bonded   with  urea  formaldehyde  (UFJ  cain  affect  human  hseith. sepecially if It  used  in a room with limited ventilation. To reduce formaldehyde emission,  the glue can be  mixed with catching agent.  In  this paper, the effect  of  using  urea and  ammonium carbonate as catching agents  on   fermaldehyde emission,and on the physical and mechanical properties of UF bonded particleboard  is described.the effect of catching agent type on formaldehyde emission is not signifivant while effect of percentage,of catching agent is highly significant on formaldehyde emission. The higher  the percentage  of catching agent, the lower  formaldehye emission of particleboard. The formaldehyde emission reaches  the requirement (max. 1  ug/ml) at the leve of  18% of amntonium carbonate or 14%  of the mixture of ammonium carbonate and urea. Type  and percentage of catching agent aflect   water absoprtion, thickness  swelling, internal bond strength,shear  strength and modulus of rupture,but not the modulus of elasticity.