Articles

The Quality Of Composite Board Made Of Waste Oil Palm Stem (Elaeis Guineensis Jacq) And Recycle Polyethylene (Pe) Lubis, Maryam Jamilah; Risnasari, Iwan; Nuryawan, Arif; Febrianto, Fauzi
Journal of Agroindustrial Technology Vol. 19 No. 1 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

The main objective of this research was to find out the substitution of solid wood and it may solve environmental problem. These researches concerned on using waste of oil palm stem particle form and recycle plastic polyetyhlene (PE) as raw materials for composite board. In this research, 5% Maleic Anhydride (MAH) was added to increase compatibility and 0.75% Dicumyl Peroxide (DCP) was added to initiate the reaction of maleolation. The methods of this research followed JIS A 5908 (2003) with ratio of plastic to particle were 50:50, 60:40 and 70:30, respectively, pressed at 30 kgf/cm2 in 165°C for 15 minutes. Evaluation on physical and mechanical properties based on JIS A 5908 (2003), and the result of physical properties as follow : 1) Density met the standard at 0.77 - 0.99 g/cm, 2) The value of moisture content were below on target and the standard because of the hidrofobicity of PE, the range were 0.79 - 3.06%, 3) Thickness swelling of the board for 24 hours fulfill the standard the value were 0.44 - 2.77%. Unfortunatelly the water absorption were 2.82 - 16.19%. Mechanical properties consist of modulus elasticity (MOE), modulus rupture (MOR) and screw holding strength didn’t meet the criteria of JIS A 5908 (2003), except MOR with plastic: particle 60:40 with particle made of inner stem. Keywords: Composite board, oil palm stem, polyethylene (PE)
Since the 1970s, energy has been a significant product of forest-related biomass.  The use of wood to provide industrial heat and electricity has become important to the economic viability of the forest product and other industry.  Growing normally at marginal soil of mining area, Leuchaena leucocephala, Samanea saman, Sesbandia grandiflora, Glirisidia maculate, Pterocarpus indica, Enterolobium cylocarpum, Hibiscus tiliaceus, and Gmelina arborea woods were analysed to investigate heat value an Cahyono, Tekat Dwi; Coto, Zahrial; Febrianto, Fauzi
Forum Pasca Sarjana Vol. 31 No. 2 (2008): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

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Abstract

Since the 1970s, energy has been a significant product of forest-related biomass.  The use of wood to provide industrial heat and electricity has become important to the economic viability of the forest product and other industry.  Growing normally at marginal soil of mining area, Leuchaena leucocephala, Samanea saman, Sesbandia grandiflora, Glirisidia maculate, Pterocarpus indica, Enterolobium cylocarpum, Hibiscus tiliaceus, and Gmelina arborea woods were analysed to investigate heat value and economic feasibility of their usage as coal substitution in cement production.  Examination on those woods species showed that mean of heat value in air dry condition was about 4.000 kcal/kg. As BC ratio is 2,07, then the mining plantation enterprise to provide fuel wood is feasible economically.   Key words: wood, heat value, feasibility
The Effect of Pressing Temperature and Time on the Quality of Particle Board Made from Jatropha Fruit Hulls Treated in Acidic Condition Iswanto, Apri; Febrianto, Fauzi; Hadi, Yusuf; Ruhendi, Surdiding; Hermawan, Dede
Makara Journal of Technology Vol 17, No 3 (2013)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.655 KB) | DOI: 10.7454/mjt.v17i3.278

Abstract

The high of pH of jatropha fruit hulls causes the negative properties of particleboard made from this material. Adjusting the  particle  acidity  and  pressing  conditions  (temperature  and  time)  is  among  the  technical  modifications  available  to improve this particleboard’s properties.  Particle acidity has been adjusted in a previous research project, and immersing the  particles  in  acetic  acid  was  found  to  be  the  best  treatment  in  this  preliminary  research.  In  order  to  improve  the particleboard’s  properties,  an  experiment  was  conducted  to  determine  the  best  pressing  temperature  and  time.  The objective of the research was to evaluate the influence of pressing temperature and time on the physical and mechanical properties of the board. Jatropha fruit hulls were immersed in 1% acetic acid solution for 24 hours. UF resin was used as the adhesive in the amount of 10%. The pressing temperatures and times used in this research were 110 °C, 120 °C, and 130 °C for 8 and 10  minutes, respectively. The particleboards  were tested to determine their physical and  mechanical properties according to JIS A 5908-2003. The result showed that pressing at 130 °C for 10 minutes resulted in the best physical  and mechanical  properties.  Increasing  the  pressing temperature  at  a  constant  time  or  increasing  the  pressing time  at  a  constant  temperature  caused  the  particleboard  to  exhibit decreased  water  absorption.  The  thickness  swelling and modulus of elasticity (MOE) of the particleboard did not fulfil JIS A 5908-2003.
Analisis Modulus Geser dan Pengaruhnya terhadap Kekakuan Panel Laminasi Kayu Samama (Antocephallus Macrophyllus) Cahyono, Tekat Dwi; Wahyudi, Imam; Priadi, Trisna; Febrianto, Fauzi; Ohorella, Syarif
Jurnal Teknik Sipil Vol 21, No 2 (2014)
Publisher : Institut Teknologi Bandung

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Abstract

Abstrak. Modulus geser perlu dijadikan pertimbangan pada produkkayu, khususnya untuk desain yang memiliki rasio tinggi/panjang bentangnya besar.Penelitian ini mendesain 6 tipe panel laminasi kayu Samama (Antocephallus macrophyllus), menganalisis modulus geser dan pengaruhnya terhadap nilai kekakuan (MOEstatis) masing-masing panel laminasi. Hasilnya kemudian dibandingan dengan kekakuan hasil pengujian non destruktif (MOEd). Hasil penelitian menunjukkan bahwa modulus geser panel laminasi kayu Samama memberikan pengaruh sebesar 2 - 8% terhadap kekakuan kayu Samama, tergantung pada tipe laminasi dan panjang bentangnya. Sementara itu nilai pengujian non-destruktif memiliki nilai yang lebih besar 11 - 20% dibandingan dengan kekakuan panel laminasi kayu Samamayang telah terkoreksi oleh modulus geser. Abstract. Shear modulus need to be considered in designing wood product that has high ratio of height/length. This study designed 6 types of panel lamina made of Samama wood (Antocephallus macrophyllus). The shear modulus was measured and its effect on the stiffness (MOE static) was analyzed in comparison to those of non-destructive test (MOEd). The results showed that shear modulus affected the stiffness of the laminas by 2-8%;the value was determined by the type of lamination and the length of span. Meanwhile, non-destructive test showedthat the laminas had 11-20% of higher stiffness than those of laminas with shear modulus corrected-stiffness.
Physical, Mechanical, and Durability Properties of OSB Prepared from CCB Treated Fast Growing Tree Species Strands Hidayat, Wahyu; Carolina, Anne; Febrianto, Fauzi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 1 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

The objective of this research was to evaluate the effect of preservative treatment of strands on the properties of oriented strand board (OSB) made from Paraserianthes falcataria, Maesopsis eminii and Acacia mangium strands. Prior to OSB manufacturing, strands were treated with chromium copper boron (CCB) soaking with concentration of 2% for 6 h. Three (3) layers OSB bonded with 7% of methylene diphenyl isocyanate (MDI) resin were produced with the core layer orientation perpendicular to the face and back layers. The results indicated that soaking strand with CCB significantly decreased the water absorption (WA) and thickness swelling (TS) values of OSB after immersed in water for 24 hours. Preservative treatment significantly decreased the mechanical properties of OSB (modulus of rupture/MOR parallel, modulus of elasticity/MOE parallel and internal bond/IB). Almost all board met the requirement of CSA 0437.0 standard for grade O-1 OSB panels, except board made from P. falcataria treated with preservative which did not achieve the requirement of TS, MOE in parallel direction, and IB. Preservative treatment strongly affected the durability of OSB. Soaking strand with CCB increased the resistance of OSB against termites attack 13.0 times higher than control board.Key words: chromium copper boron, fast growing tree species, methylene diphenyl isocyanate, oriented strand board
Properties Enhancement of Rubber Wood Particleboard Laminated with Low Density Polyethylene (LDPE) Resin Febrianto, Fauzi; Hwee, See P; Man, Ching K; Hidayat, Wahyu
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 2 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

The main weaknesses of particleboard are that it has a lower strength and a lower dimensional stability compared to solid wood. Therefore, in order to gain excellent properties prior to be used, it needs some treatments, i.e., resin thermoplastic laminated. The objectives of this study were to improve the physical and mechanical properties of rubber wood particleboard laminated with low density ethylene (LDPE) resin. Rubber wood particleboard was laminated with 4 different concentrations of LDPE resins (i.e., 5, 10, 15, and 20%). The physical and mechanical properties of board were evaluated both in dry and wet states. The results indicated that the dimensional stability of board after laminated with LDPE resin showed significant improvement in term of water absorption and thickness swelling. Modulus of rupture and srew resistant of resulted particle board were increased with addition of LDPE resin. Modulus of elasticity and surface hardness of the particleboard were slightly decreased with addition of LDPE resin. The intenal bond was unchanged. The best treatment was found on lamination the surface of particleboard with 5% LDPE resin. All the physical and mechanical properties of particleboard laminated with 5% LDPE resin met the requirements of JIS A 5908-2003 standard.Key words: dimensional stabilization, low density polyethylene, mechanical properties, particleboard
Physical and Mechanical Properties of Particleboard Made from Jatropha (Jatropha curcas) Fruit Hulls Reinforced with Wood Particle Iswanto, Apri H; Febrianto, Fauzi; Hadi, Yusuf Sudo; Ruhendi, Surdiding; Hermawan, Dede
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 2 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

The objective of this research was to evaluate the properties of particleboard made from mixtures of jatropha fruit hulls (JFH) and wood particle in several mixture ratios. JFH, and mangium wood (Acacia mangium Wild) particle were untreated and treated with 1% acetic acid solution for 24 h. Urea formaldehyde (UF) resin with 10% resin content (SC: 63%) was used as binder. The ratio of JFH and wood particles were set at 100:0, 70:30, 60:40, 50:50, and 0:100. The target density of particleboard was set at 0.70 g cm-3. The temperature and pressure of hot pressing were set at 130 ºC and 2.544 N mm-2 for 10 minutes. The physical and mechanical properties of particleboard were evaluated according to JIS A 5908-2003 standard. The result indicated that addition of untreated mangium wood particle onto JFH particles improved mechanical properties of board especially modulus of elasticity (MOE) and modulus of rupture (MOR) parameters. However, the internal bond (IB) parameter was found to decrease with addition of wood particle. The higher amount of wood particle added resulted in the better the MOR and MOE parameters. Addition of acetic acid treated mangium wood particle onto JFH particleboard resulted in lower physical and mechanical properties.Key words: Jatropha curcas, fruit hulls, particleboard, wood particle
Natural Durability of Nine Woods Species Grown in Dramaga Campus Bogor Agricultural University against Termite Attacked Febrianto, fauzi; Pranata, Andi Z; Arinana, Arinana; Gumilang, Adiyantara
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 1 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

The objective of this research was to evaluate the natural durability of nine Indonesia lesser known species against subterranean termite (Coptotermes curvignathus Holmgren) and dry wood termite (Cryptotermes cynocephalus Light) attacked grown in Dramaga campus, Bogor Agricultural University. Sap and hearth wood parts of mangium, durian, nangka, angsana, afrika, rukam, trembesi, bisbul, and ki sampang woods with diameter around 13-30 cm were used in this experiment. Evaluation of natural durability of wood referred to SNI 01-7207-2006. The hearth wood of nangka wood was the most durable wood against C. curvignathus attacked and it was classified into 2nd class. Bisbul, rukam and trembesi woods both sap and herath wood and heart wood of angsana wood were classified into 3rd class. Mangium and afrika woods both sap and hearth woods were classified into 4th class. Ki sampang and durian woods both sap and hearth woods and sap wood of nangka and angsana woods were classified into 5th class. All the 9 woods species (i.e. rukam, bisbul, mangium, ki sampang, afrika, nangka, durian, angsana and trembesi woods) both sap and hearth wood parts were moderately resistance to C. cynocephalus and they were classified into 3rd class.Key words: dry wood termite, hearth wood, lesser known species, natural durability, sap wood, subterranean termite
Pengaruh Perlakuan Steam pada Strand dan Shelling Ratio terhadap Sifat Fisis dan Mekanis Oriented Strand Board Bambu (Effect of Steam Treatment on Strand and Shelling Ratio on the Physical and Mechanical Properties of Bamboo Oriented Strand Board) Maulana, Sena; Purusatama, Byantara D; Wistara, Nyoman J; Sumardi, Ihak; Febrianto, Fauzi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 2 (2016): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

The objective of this study was to evaluate the physical and mechanical properties of bamboo oriented strand board (OSB) from andong (Gigantochloa pseudoarundinacea) with steam treatment on strand at various shelling ratios. Strands were steam-treated at 126 ºC for 1 h under 0.14 MPa pressure. Three-layer OBSB with the core layer perpendicular to the surface at various shelling ratio (15/70/15, 20/60/20, 25/50/25, 30/40/30) was formed and bonded with 8% of phenol formaldehyde resin. Wax was added amount of 1% based on oven dry strand. The evaluation of physical and mechanical properties of the boards was conducted in accordance to the JIS A 5908:2003 standard. Steam treatment tended to increase the dimensional stability and mechanical properties of OBSB from andong. The higher shelling ratio increased the parallel flexural properties, but decreased the perpendicular flexural properties.
Physical and Mechanical Properties of Samama Wood (Antocephalus macropylus Roxb.) Grown in Mollucas Island Cahyono, Tekat D; Ohorella, Syarif; Febrianto, Fauzi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 1 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

People are less interest to the fast growing species since the quality is inferior compared to commercial wood. A research has been done to identify the physical and mechanical properties of samama wood (Antocephalus macrophylus (Roxb.)) from Mollucas island. Eight years old samama wood with diameter of 30 - 45 cm and height of 8 – 11 meter were used as samples. The parameters measured were moisture content (MC), specific gravity (SG), tangential and radial shrinkages, bending strength (MOR and MOE), tension and compression strengths parallel to grain and hardness. The result showed that the MC of samama wood decreased from bottom to upper and from outer to inner parts, while SG decreased from bottom to upper and from inner to outer part. Tangential and radial shrinkages of samama wood were much affected by vertical position. The MOE and MOR of samama wood decreased from bottom to upper part, while tension and compression strengths parallel to grain direction decreased form inner to outer part. On the other hand, hardness of samama wood decreased from bottom to upper and from inner to outer parts. Based on PKK NI5-1961 classification, samama wood belonged to strength class of III and IV.Key words: mechanical properties, Mollucas Island, physical properties, samama wood