Articles
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
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
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
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
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
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
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
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
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
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
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.