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SIFAT FISIS DAN MEKANIS ORIENTED STRANDS BOARD (OSB) DARI AKASIA, EKALIPTUS DAN GMELINA BERDIAMETER KECIL : PENGARUH JENIS KAYU DAN MACAM APLIKASI PEREKAT NURYAWAN, Arif; MASSIJAYA, Muh. Yusram; HADI, Yusuf Sudo
Jurnal Ilmu dan Teknologi Hasil Hutan Vol 1, No 2 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The objectives of this research were to determine and to compare the physical and mechanical properties of OSB made of strands from three small diameter fast growing species, namely  Akasia (Acacia mangium Willd.), Ekaliptus (Eucalyptus sp.), and Gmelina (Gmelina arborea Roxb.). There were 3 models of OSB produced which bonded by 2 types of adhesive, namely Phenol Formaldehyda (PF) powder type, isocyanate (IC), and the face and back layers bonded by powder PF and the core layer bonded by IC. OSB was made of  three plies, with 9 mm target thickness and ratio of strands weight in face : core : back was 1:1:1. Mat forming methods in face was lengthwise and  the core was widthwise. Level of adhesive 7% based on oven dry strands weight, pressed at 25 kg/cm2 for 15 minutes at 160 °C. Japanese Industrial Standard (JIS) A 5908-2003 for particle board 24-10 type was used as standard. Results of this research showed generally physical properties consist of density, moisture content, and thickness swelling fulfilled JIS A 5908-2003 standard. Unfortunatelly, the dimensional stability should be improved, the range 24 hours water absorption was about 22.35–44.63%. For mechanical properties, which consist of internal bonding, modulus of rupture (MOR) and modulus of elasticity (MOE) which be evaluated in dry condition both lengthwise and widthwise generally fulfilled JIS A 5908-2003 standard. However, there were values of  MOR and MOE which be evaluated in wet condition both of lengthwise and widthwise did not fulfill JIS A 5908-2003 standard. The best performance of OSB was which bonded by IC for all the wood species. Using PF powder at the face and back layers and IC in the core layer of OSB generally increased their physical properties (dimensional stability) but decreased their mechanical properties.   Keywords  : Physical and  mechanical properties, OSB, small diameter fast growing species, adhesive
KARAKTERISTIK PAPAN KOMPOSIT DARI SERAT SABUT KELAPA DAN PLASTIK POLIPROPILENA DAUR ULANG BERLAPIS ANYAMAN BAMBU SETYAWATI, Dina; HADI, Yusuf SUDO; MASSIJAYA, Muh. YUSRAM; NUGROHO, Naresworo
Jurnal Ilmu dan Teknologi Hasil Hutan Vol 1, No 1 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The objective of this research is to evaluate the characteristic of  composite board made from coconut fibre, recycled polypropylene (RPP), and bamboo matting layers. The board samples target density was 0,70 g/cm3. The board construction type was core type composite board (three layers).  Coconut fiber and RPP were used as core, and bamboo matting was used as face and back layers. RPP was used 50% based on coconut fiber oven dry weight. The bamboo sheet wide is 1 cm and 2 cm, with and without bark. The bamboo matting layers were used in slope (45˚) and perpendicular (0/90˚) orientation to length of the board. The research results showed that utilization of bamboo matting layers increase the mechanical properties of board. All of composite board made from coir, RPP, and bamboo matting layers fulfill  the JIS A 5908 standard in density, thickness swelling after 24 hours of water immersions, and screw holding power. Only composite boards with bamboo matting layers with bark, sheet wide 1 cm, and perpendicular orientation to length of the board fulfill JIS A 5908 1994 standard for veneered particleboard in MOE.  However, application of bamboo matting layers without bark is adviced better because more efficient in the raw material using.   Keywords:               Composites board, coconut fiber, recycled polyprophylene, bamboo matting layers
KARAKTERISTIK PAPAN PARTIKEL DARI BAMBU TANPA MENGGUNAKAN PEREKAT ., SUHASMAN; MASSIJAYA, Muh. Yusram; HADI, Yusuf Sudo; SANTOSO, Adi
Jurnal Ilmu dan Teknologi Hasil Hutan Vol 3, No 1 (2010): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The purpose of this study was to analyze the phisycal and mechanical properties of binderless particleboard using bamboo as raw materials. Andong bamboo (Gigantochloa pseudoarundinaceae) used in this study was taken from Bogor area. Bamboo was converted using hammer mill and air dried subsequently. The particle zise was passed of the 20 mesh screener. Three types pretreatment were used to prepare the particle, namely : 1) water boiling for 30 and 60 minutes, 2) oxydation using hydrogen peroxyde, and 3) combination of water boiling for 30 minutes and oxydation using hydrogen proxide. As a control, conventional particleboards using 10 % melamine formaldehyde (MF) resin based on dry particle weight was produced. The particle which has pretreated then utilized to produce binderless particleboard with board density of 0.75 g/cm3. The pressing conditions were 180 oC in temperature, 25 kgf/cm2 in pressure for 20 minutes. The board characteristics were tested according to JIS A 5908 2003. The results indicated that particleboard made from  particle with oxydation pretreatment performed superior characteristics compared to those of particleboard made from particle only with water boiling pretreatment. Dimensional stability and modulus of elasticity of board with oxydation pretreatment were excellent. Its was superior compared to that of conventional particleboard using melamine formaldehyde as adhesive.   Keywords : Bamboo, Binderless Particleboard, Oxydation, Hydrogen Peroxyde
KARAKTERISTIK BALOK LAMINASI DARI KAYU MANGIUM (Acacia mangium Willd.) HERAWATI, Evalina; MASSIJAYA, Muh. YUSRAM; NUGROHO, Naresworo
Jurnal Ilmu dan Teknologi Hasil Hutan Vol 1, No 1 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

Glued-laminated (glulam) beams is one of engineered wood products used for structural applications.  The objective of this research is to evaluate characteristics of glulam beams made from Acacia mangium Willd.    Laminations used were 2, 4, 6, 8 and 12 cm in widthnesses, 2 cm in thickness and 260 cm in length.  Each lamination was graded using Machine Stress Grading (namely by Panter or plank sorter) to determine the modulus of elasticity (MOE) value.  The glulam beams was 6 cm x 12 cm in five types of cross-section which arranged by various widths and those MOE of laminations.  Glulam beams were bonded by water based polymer isocyanate (WBPI) using 280 g/m2 double glue spread.  The research results showed that glulam beams made from A. mangium Willd.  fulfilled the JAS 234:2003 standard as on following properties: moisture content, MOE, MOR, shear strength and immersion delamination test.  However, performance of glulam was unsatisfactory in wood failure ratio and boiling water soak delamination test.   Keywords:  Glulam beam, MOE, MOR, shear strength, delamination
PEMANFAATAN LIMBAH PELEPAH SAWIT DAN PLASTIK DAUR ULANG (RPP) SEBAGAI PAPAN KOMPOSIT PLASTIK Wardani, Lusita; Massijaya, Muh. Yusram; Machdie, Muhammad Faisal
Jurnal Hutan Tropis Vol 1, No 1 (2013)
Publisher : Jurnal Hutan Tropis

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Abstract

This study examined the physical and mechanical properties of wood plastic composites made from recycled propypropylene (RPP) and oil palm biomass wastes under various particle sizes. Oil-palm biomass wastes (ie., petiole oil palm (POP were used as filler. The POP was produced in 3 groups (i.e., passed from 20, 40 and 60 meshes filtered). The RPP and POP ratio were 7:3. Maleic anhydride (MAH) and benzoil peroxyde (BPO) were used as a modifier and an inisiator in amount of 5% based on RPP and MAH weight, respectively. The hand-mixtures of RPP and POP with or without MAH and BPO were subjected to hot-press at 190p C for 10 min at 15 kgf.cm-2 pressure. The results indicated particle sizes, MAH and BPO and presure of temperature were influences of physical and mechanical properties of WPC from POP. Samples WPC with MAH and BPO have a highest value than samples without MAH and BPO.Testing was done according to standard JIS A 5908-2003. Preliminary research results shown that particle from palm oil petiole with aditive content shown the best physical and mechanical properties compared to the others.
Ciri Finir Kupas Kayu Jabon (Anthocephalus cadamba) Kabe, Abigael; Darmawan, Wayan; Massijaya, Muh. Yusram
Jurnal Ilmu Pertanian Indonesia Vol 18, No 3 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Fast growing jabon is largely rotary-cut to produce veneer for plywood, com-ply, and LVL. In order to provide better information on veneer production and utilization, in this study the effects of wood juvenility and veneer thickness on lathe checks of jabon rotary-cut veneer were evaluated. Before veneer manufacturing, the jabon log was boiled at 50 and 75 °C for 4 and 8 hours respectively. The boiled logs were peeled to produce veneer of 1 and 2 mm thick. Lathe checks of veneers were measured under an optical video microscope. The rotary-cut veneer was grouped and evaluated separately at every segmented ring of 1 cm from pith to bark. The results showed that wood juvenility and veneer thickness had an important effect on lathe checks for the rotary-cut veneer. In general, the number of lathe check of the veneer increases with increasing veneer thickness and increase from pith to bark. Boiling of logs before rotary-cutting could decrease the value of lathe check. The results indicated that boiling of logs at 50 °C for 8 hours, and at 75 °C for 4 and 8 hours could minimize the number of lathe checks in manufacturing of 1 and 2 mm rotary-cut veneer from juvenile wood jabon. Keywords: boiling of wood, jabon, juvenility, lathe check, rotary-cut veneer, veneer thickness
PENGARUH KOMPOSISI ARAH LAPISAN TERHADAP SIFAT PAPAN BAMBU KOMPOSIT Sulastiningsih, I.M.; Ruhendi, Surdiding; Massijaya, Muh. Yusram; Darmawan, Wayan; Santoso, Adi
Jurnal Penelitian Hasil Hutan Vol 32, No 3 (2014): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Litbang Keteknikan Kehutanan dan Pengolahan Hasil Hutan

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh komposisi arah lapisan terhadap sifat papan bambu komposit (PBK). Jenis bambu yang digunakan adalah bambu andong (Gigantochloa pseudoarundinacea) berumur sekitar 4 tahun yang diperoleh dari tanaman rakyat di Jawa Barat. Bilah bambu andong yang digunakan untuk membuat PBK diberi perlakuan pendahuluan dengan jalan direndam dalam larutan boron 7% selama 2 jam. Produk PBK 5 lapis dibuat dengan 4 macam variasi komposisi arah lapisan. Bambu lamina dibuat dengan menggunakan perekat isosianat water based polymer-isocyanate (WBPI) dengan berat labur perekat 250 g/m2 permukaan, dikempa dingin dengan lama pengempaan 45 menit. Hasil penelitian menunjukkan bahwa rata-rata kerapatan, kadar air, pengembangan tebal, dan pengembangan lebar PBK berturut-turut adalah 0,79g/cm3, 12,60%, 2,38%, dan 1,13%. Kualitas perekatan PBK yang dibuat dengan perekat isosianat (WBPI) cukup baik yang ditunjukkan oleh tidak terjadinya delaminasi pada semua contoh uji untuk pengujian delaminasi. Keteguhan rekat rata-rata (uji kering) PBK yang dibuat dari bambu andong dengan perekat isosianat adalah 70,4 kg/cm2.  Sifat fisis dan mekanis PBK sangat dipengaruhi oleh komposisi arah lapisan penyusun PBK. Sifat mekanis PBK menurun dengan meningkatnya jumlah lapisan silang dalam komposisi lapisan penyusun PBK. Sebaliknya keberadaan lapisan silang dalam komposisi lapisan penyusun PBK meningkatkan kestabilan dimensi PBK yang dihasilkan.
Ciri Finir Kupas Kayu Jabon (Anthocephalus cadamba) Kabe, Abigael; Darmawan, Wayan; Massijaya, Muh. Yusram
Jurnal Ilmu Pertanian Indonesia Vol 18, No 3 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.779 KB)

Abstract

Fast growing jabon is largely rotary-cut to produce veneer for plywood, com-ply, and LVL. In order to provide better information on veneer production and utilization, in this study the effects of wood juvenility and veneer thickness on lathe checks of jabon rotary-cut veneer were evaluated. Before veneer manufacturing, the jabon log was boiled at 50 and 75 °C for 4 and 8 hours respectively. The boiled logs were peeled to produce veneer of 1 and 2 mm thick. Lathe checks of veneers were measured under an optical video microscope. The rotary-cut veneer was grouped and evaluated separately at every segmented ring of 1 cm from pith to bark. The results showed that wood juvenility and veneer thickness had an important effect on lathe checks for the rotary-cut veneer. In general, the number of lathe check of the veneer increases with increasing veneer thickness and increase from pith to bark. Boiling of logs before rotary-cutting could decrease the value of lathe check. The results indicated that boiling of logs at 50 °C for 8 hours, and at 75 °C for 4 and 8 hours could minimize the number of lathe checks in manufacturing of 1 and 2 mm rotary-cut veneer from juvenile wood jabon.
3-MONOKLORO-1,2-PROPANDIOL PADA KEMASAN KERTAS DUPLEKS SERTA MIGRASINYA KE DALAM SIMULAN PANGAN Rachmani, Ira Dwi; Kusnandar, Feri; Yuliana, Nancy Dewi; Regina, Yane; Massijaya, Muh. Yusram; Budijanto, Slamet
Jurnal Teknologi dan Industri Pangan Vol 26, No 1 (2015): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.265 KB) | DOI: 10.6066/jtip.2015.26.1.44

Abstract

3-Monochloro-1,2-propandiol (3-MCPD) is a carcinogenic food contaminant. 3-MCPD is formed during food processing, and can also be derived from food contact packaging materials, including paper. Wet-strength resin is often added into paper food packaging to provide moisture resistance and thus enhancing food shelf-life and consumer usage. The wet-strength resins which are manufactured from epichlorohydrin-based starting materials, are known to initiate the formation of 3-MCPD. Thus, the objectives of this study were: 1) to validate an analytical method for the analysis 3-MCPD in duplex paper packaging, 2) to analyze3-MCPD content in duplex paper, and 3) to analyze 3-MCPD migration from duplex paper packaging into food simulants. 3-MCPD content in duplex paper was analyzed by a validated GC-MS method with linearity value (R2) of 0.993, limit of detection (LOD) of 6.65 ppb, limit of quantification (LOQ) of 22.15 ppb, and recovery range of 83.00–114.13%. The 3-MCPD content of five sample duplex papers obtained from different packaging paper manufacturers were ranging from 753.43 to 825.36 ppb, and there was no significant differences between the samples. Direct contact between food simulants and duplex paper for 24 hours at 40°C generated migration of 3-MCPD at levels of 40.55 to 57.61%.
PENGARUH KOMPOSISI ARAH LAPISAN TERHADAP SIFAT PAPAN BAMBU KOMPOSIT Sulastiningsih, I.M.; Ruhendi, Surdiding; Massijaya, Muh. Yusram; Darmawan, Wayan; Santoso, Adi
Jurnal Penelitian Hasil Hutan Vol 32, No 3 (2014): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.998 KB) | DOI: 10.20886/jphh.2014.32.3.221-234

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh komposisi arah lapisan terhadap sifat papan bambu komposit (PBK). Jenis bambu yang digunakan adalah bambu andong (Gigantochloa pseudoarundinacea) berumur sekitar 4 tahun yang diperoleh dari tanaman rakyat di Jawa Barat. Bilah bambu andong yang digunakan untuk membuat PBK diberi perlakuan pendahuluan dengan jalan direndam dalam larutan boron 7% selama 2 jam. Produk PBK 5 lapis dibuat dengan 4 macam variasi komposisi arah lapisan. Bambu lamina dibuat dengan menggunakan perekat isosianat water based polymer-isocyanate (WBPI) dengan berat labur perekat 250 g/m2 permukaan, dikempa dingin dengan lama pengempaan 45 menit. Hasil penelitian menunjukkan bahwa rata-rata kerapatan, kadar air, pengembangan tebal, dan pengembangan lebar PBK berturut-turut adalah 0,79g/cm3, 12,60%, 2,38%, dan 1,13%. Kualitas perekatan PBK yang dibuat dengan perekat isosianat (WBPI) cukup baik yang ditunjukkan oleh tidak terjadinya delaminasi pada semua contoh uji untuk pengujian delaminasi. Keteguhan rekat rata-rata (uji kering) PBK yang dibuat dari bambu andong dengan perekat isosianat adalah 70,4 kg/cm2.  Sifat fisis dan mekanis PBK sangat dipengaruhi oleh komposisi arah lapisan penyusun PBK. Sifat mekanis PBK menurun dengan meningkatnya jumlah lapisan silang dalam komposisi lapisan penyusun PBK. Sebaliknya keberadaan lapisan silang dalam komposisi lapisan penyusun PBK meningkatkan kestabilan dimensi PBK yang dihasilkan.