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PENGARUH BAHAN PENGAWETAN PHOXIM TERHADAP SIFAT PAPAN PARTIKEL KAYU KARET (hevea brasiliensis) (effect of phoxim preservation on the properties of rubber wood particleboard (hevea brasiliensis)) Rodjak Memed; I M Sulastiningsih; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 11, No 8 (1993): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1885.984 KB) | DOI: 10.20886/jphh.1993.11.8.329-332

Abstract

The objectives of the study was to determine the effect of phoxim on the properties of rubber wood particleboard (Hevea brasiliensis ) phoxim concentration used were 0.05,1, 1.5 and 2 % based on particle dry weight.The result showed, that the addition of phoxim preservative to particleboard reduced the values of modulus of rupture, modulus of elasticity, internal bond strength and shear strength, but increased the thicknees swelling and water absorption of particleboard. However, the phyrical. and mechanical properties of particleboard treated With phoxim preservative up to 2 % met the FAO standard for medium density particleboard and met JIS for type 150 particleboard. Compared with Indonesian standard all particleboards produced met the standard requirements except for internal bond strength.
PENGABUH BERAT LABUR DAN KADAR PENGISI PEREKAT TANIN FORMALDEHIDA TERHADAP KETEGUHAN BEKAT LAPIS adi santoso; rodjak memed; Paribotro sutigno
Jurnal Penelitian Hasil Hutan Vol 9, No 3 (1991): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1861.4 KB) | DOI: 10.20886/jphh.1991.9.3.111-114

Abstract

It has been known that  tannin formaldehyde  resin  is suitable for exterior plywood  adhesive. one   of the source of tannin is Acacia decurrens bark. A study on using tannin formaldehyde from.  Acacia  decurrens   bark has been done  to predict  the effect of  glue spread  and percentage of filler on the plywood   bonding strength. The results show that glue spread has not sigatficant effect on plywood  bonding strength, while percentage of  filler  has significant effect on plywood  bonding strength and all plywood resulted meet German  Standard requirement for  exterior purpose. (AW 100).From  the economic paint of view,  it is recommended. to use glue spread of 150 g/m2 and percentage of filler of 4o%. 
PENGARUH MELAMIN DALAM PEREKAT UREA FORMALOEH IDA TERHADAP BEBERAPA SIFAT KAYU LAPIS MERANTI The (lffect of melamine composition in urea formaldehyde resin glue on the properties of merenti plywood Rodjak Memed
Jurnal Penelitian Hasil Hutan Vol 8, No 1 (1990): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5286.169 KB) | DOI: 10.20886/jphh.1990.8.1.20-24

Abstract

The "fiy1iialal'ld :chemical properties of  urea formaldehyde resin were tested  based on the Indonesian Standard. which cO'nlittfl)t appearatlceipropertie1, pH, tree fOrmaldehyde, solid content and pot'~llfe. TM   re.ult 1hou>s that most of the prripertiu    co11form,fbith.  the  nanclard :                                                                                                                                      .                                                        .                                             'n.w:addinon.  1 scent '.melamine  qnd ao ~rcent   extender 1'r:Oduces plywood  with formAlile1&yde emwionmeetini the J 981. American 1tanclqrd.  The effect of melamine addition toat not signi(tt:ant.The effect of extender on theother htind 1uu•iiwhJ1.  1igni'(ieant'effect  on the ilecr:ea_1e of formaldehyde emiaion tn  plywood.          Allplytt;ooli bonittir; 1tren,.th meet the Indonesian, Japaneseand German standard. The effect of melamine addition of lO dd  16 enton      thplywood   bonding atrength' was not significant.
PENGARUH SENYAWA BORON TERHADAP BEBERAPA SIFAT PAPAN PARTIKEL KARET (Hevea brasiliensis) Rodjak Memed; I M Sulastiningsih; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 10, No 5 (1992): 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.1992.10.5.160 - 166

Abstract

The objective of the study was to determine the effect  of boron concentration and resin proportion on some properties of rubberwood (Hevea brasiliensis) particleboard. Boron concentrations used were 0, 0.25,  0.50,  0. 75 and  1.0%, and resin proportions in urea formaldehyde were 10, 12 and 14% dry weight basis.The results indicated that the addition of boron compound to porticleboard reduced the values of bending strength, internal bond strength and shear strength but increased the thickness swelling and water absorption of particleboard. Mechanical properties of particleboard  increased with the increase of resin proportion. Thickness swelling and water absorption decreased as the resin proportion  increases.  Physical and mechanical properties  of particleboard  treated with boron compound up to 1% cocentration level and bonded with urea formaldehyde  at 12% or 14% resin propotions were all  met  the  SII  standard requirements,  except  for  internal  bond  strength.  Compared  with  FAO  standard, particleboards that met all the standard requirements  were those with 14% resin proportion.
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 | 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.
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 | 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 | 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.
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.