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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Silvikultur Tropika (JST) Jurnal Ilmu dan Teknologi Hasil Hutan Forum Pasca Sarjana JURNAL HUTAN LESTARI Jurnal Bahan Alam Terbarukan Indonesian Journal of Forestry Research Jurnal Penelitian Hasil Hutan Jurnal Teknik Sipil Jurnal Ilmu dan Teknologi Kayu Tropis PERENNIAL Journal of Sylva Indonesiana Jurnal Penelitian Hasil Hutan Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society Jurnal Sylva Lestari JURNAL HUTAN TROPIS Makara Journal of Science Makara Journal of Technology
Yusuf Sudo Hadi
Departemen Hasil Hutan, Fakultas Kehutanan, Institut Pertanian Bogor, Dramaga Bogor.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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The Effect of Pressing Temperature and Time on the Quality of Particle Board Made from Jatropha Fruit Hulls Treated in Acidic Condition Iswanto, Apri Heri; Febrianto, Fauzi; Hadi, Yusuf Sudo; Ruhendi, Surdiding; Hermawan, Dede
Makara Journal of Technology Vol. 17, No. 3
Publisher : UI Scholars Hub

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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.
The Effect of Zephyr Layer Orientation on Zephyrboard Made from Oil Palm Petiole Wardani, Lusita; Massijaya, Muhamad Yusram; Hadi, Yusuf Sudo; Darmawan, I Wayan
Makara Journal of Technology Vol. 18, No. 1
Publisher : UI Scholars Hub

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Abstract

It is very important to utilize oil palm petiole for the production of zephyr boards. This study aimed to analyze the effect of layer orientation on zephyr board quality. Zephyr boards were made with three coating patterns (A = cross perpendicular, B= combine A and C, and C= paralell) and five zephyr layers using urea formaldehyde adhesive. They were pressed for 20 min at a pressure of 25 kgf/cm² and a temperature 120 ºC, to a target density of 0.80 g/cm³ and a size of 300 mm X 300 mm X 12 mm. Our results showed that the physical and mechanical properties fulfilled the standards of JIS A 5908-2003. The best physical properties were found in the type C layer pattern, which had a density of 0.82 g/cm³, Mouisture Content of 9.46%, Water Absorpsion of 16.49%, and Thickness Swelling of 16.49%. The best mechanical properties—Modulus Of Elasticity and Modulus Of Repture —were also found in the type C layer pattern, with values of 35.2 x 10-3 kgf/cm² and 603.9 kgf/cm², respectively. However, the best IB and screw holding strength (SW) results were found with the type B layer pattern (Internal bonding B of 38.65 kgf/cm², Screw Withdrawl of 145.11 kgf).
Physical and Mechanical Properties of Cross-Laminated Timber Made of a Combination of Mangium-Puspa Wood and Polyurethane Adhesive Tengku Muhammad Renzy Hariz; Yusuf Sudo Hadi; Muhammad Adly Rahandi Lubis; Muhammad Iqbal Maulana; Rita Kartika Sari; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 11 No. 1 (2023): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i1.645

Abstract

This study aimed to evaluate the physical and mechanical properties of cross-laminated timber (CLT) characteristics from mangium (Acacia mangium) and puspa (Schima wallichii) woods and their combination using polyurethane (PU 1.2) adhesives. The manufacture of CLT began with basic adhesive characterization and thermo-mechanical analysis. Wood material’s physical and chemical properties were also tested with its response to the PU 1.2 wettability. The CLT (100 ´ 30 ´ 3.60) cm3 was manufactured with 160 g/m2 glue spread at a pressure of 0.80 MPa for 200 minutes. The CLT panels were characterized refers to the JAS 3079  standard. The results show that PU 1.2 had a gelatination time of 182.1 minutes at 25°C, was able to form urethane groups, and experienced an increase in storage modulus at 35°C. Mangium and puspa woods have different physical and chemical properties, but they interact similarly with PU 1.2 wettability. Puspa CLT panel has a higher density than mangium but lower dimensional stability. The bending mechanical properties of hybrid puspa-mangium-puspa CLT were able to match puspa CLT and have one sample of shear strength that met the JAS 3079 standard in both grain directions. Therefore, hybrid puspa-mangium-puspa CLT has the potential to be developed to improve its dimensional stability and mechanical properties. Keywords: Acacia mangium, cross-laminated timber, layer combination, polyurethane adhesive, Schima wallichii
Characteristics of Polyurethane Cross-Laminated Timber Made from a Combination of Pine and Coconut Muhammad Iqbal Adi Baskara; Yusuf Sudo Hadi; Muhammad Adly Rahandi Lubis; Muhammad Iqbal Maulana; Rita Kartika Sari; Fauzi Febrianto; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 11 No. 2 (2023): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i2.691

Abstract

The objective of this study was to assess the properties of cross-laminated timber (CLT) fabricated from the combination of Sumatran pine (P) and coconut trunk (C) bonded with polyurethane adhesive. The basic properties of raw materials and adhesives were characterized. The CLT panels’ length, width, and thickness are 100 cm by 30 cm by 3.6 cm, respectively. Three-layer CLT was made with 4 combinations of face/core/back lamina, i.e., PPP, CCC, PCP, and CPC, which are arranged perpendicular to each other. The laminae were bonded using PU adhesive on 160 g.m-2 glue spread. The CLT’s delamination and wood failure percentages (WFP) were assessed following the JAS 3079 (2019) standard. The study’s results demonstrated that the PU adhesive employed in this investigation could curl ideally at 30°C for 200 min. Solid pine and coconut’s physical and chemical characteristics differed, but their wettability to polyurethane adhesives was identical. Hybrid pine CLT has greater attributes compared to single pine CLT. Single coconut CLT, on the other hand, offers better features than hybrid coconut CLT. All CLT samples failed to fulfil the JAS 3079 (2019) requirement for delamination (=< 10%) and WFP (>= 90%). Keywords: Coconut trunk, cross-laminated timber, layer combination, pine wood, polyurethane adhesive
Influence of Puspa Wood and Coconut Trunk Combination on the Characteristics of Cross-Laminated Timber Bonded with Polyurethane Adhesive Siti Aisyah; Yusuf Sudo Hadi; Muhammad Adly Rahandi Lubis; Muhammad Iqbal Maulana; Rita Kartika Sari; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 11 No. 1 (2023): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i1.647

Abstract

The purpose of this study was to evaluate the characteristic of cross-laminated timber (CLT) made from puspa (Schima wallichii) wood, coconut (Cocos nucifera) trunk, and their combination using a polyurethane (PU) adhesive. The manufacturing of CLT begins with the characterization of the adhesive and wood materials used in this study. The CLT panels are made with dimensions of 100 cm × 30 cm × 3.6 cm. The laminate was organized into three layers with the face/core/back, namely puspa wood (PPP), coconut trunk (CCC), and their combination (PCP and CPC), perpendicular to each other using polyurethane adhesive with a glue spread of 160 g.m-2. The physical and mechanical properties of the CLT were assessed according to the JAS 3079 (2019) standard. The results showed that the polyurethane adhesive used in this study could cure optimally at a temperature of 30°C for 200 minutes. Puspa wood and coconut trunk had different physical and chemical properties but had similar wettability to polyurethane adhesives. The physical and mechanical characteristics of coconut CLT were better than puspa CLT. Based on the overall test results, the puspa hybrid CLT is better than the single wood species of the CLT. In contrast to coconut hybrid CLT, the single CLT of CCC was better than its hybrid CLT. Keywords: Coconut trunk, cross-laminated timber, layer combination, polyurethane adhesive, puspa wood
The Influence of Wood Species and Type of Strands Arrangement to the Physical and Mechanical Properties of Oriented Strands Board Nuryawan, Arif; Massijaya, Muh, Yusram; Hadi, Yusuf Sudo
Journal of Sylva Indonesiana Vol. 1 No. 01 (2018): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (807.72 KB) | DOI: 10.32734/jsi.v1i1.424

Abstract

This research was concerning in mat forming method for production of oriented strands board (OSB) in laboratory scale. There were three prototype models of OSB resulted in method applied, namely manually alignment’s model, using former device tool adopted from Nishimura’s model, and using former device made of plywood and wire’s model. From the physical and mechanical properties evaluation, the best mat of OSB was resulted in the third model, using former device made of plywood and wire.
SIFAT FISIS DAN KEKERASAN PAPAN BLOK DARI BATANG KELAPA SAWIT DAN FINIR JENIS KAYU CEPAT TUMBUH Mangurai, Silvia Uthari Nuzaverra Mayang; Massijaya, Muh Yusram; Hadi, Yusuf Sudo; Hermawan, Dede; Abdillah, Imam Busyra; Munadian, Munadian
JURNAL HUTAN LESTARI Vol 12, No 2 (2024): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v12i2.87749

Abstract

The oil palm trunk and fast-growing species was the potential as raw materials for blockboard. The quality of composite board can be reflected by the value of physical and mechanical properties that influenced by the characteristics of veneer, board core and type of adhesive and the method of manufacturing. The aim of this research was to produce block boards from oil palm trunk waste and sengon (Paraserianthes falcataria (L.) Nielsen), manii (Maesopsis eminii Engl.), mangium (Acacia mangium Willd.) veneers as surface layers. The size of the blockboards was 35 x 35 x 2.4 cm3. The adhesives used were phenol formaldehyde (PF) and urea formaldehyde (UF) with glue spread of 200 g·m-2. The blockboards were made with a pressure of 15 kg·cm-2 for 10 minutes at 130 oC for PF and 110 oC for UF. The physical and mechanical properties of the boards were tested based on SNI 01-7201, JAS 232 2003 and JIS A 5908-2003 standard. The research results show that the wood veneer species and adhesive types can improved the physical properties and hardness of block board with oil palm trunk core. Moisture content value of the boards had less than 10% and the thickness sweeling had less than 12%. Thickness swelling and delamination were influenced by adhesive types. Block board with PF adhesive have a lower delamination value than bloc board with UF adhesive so it can be used for exterior purposes. The hardness value blockboard fulfil BS standard and recommended for flooring applications.Keywords: adhesives types, blockboard, fast-growing species, oil palm trunk, physical properties and hardnessAbstrakLimbah batang kelapa sawit dan jenis kayu cepat tumbuh mempunyai potensi sebagai bahan baku papan blok. Kualitas papan komposit dapat terlihat dari sifat fisis dan mekanis yang dipengaruhi oleh karakteristik finir, bagian inti papan, jenis perekat, dan metode pembuatannya. Tujuan penelitian ini adalah untuk menentukan sifat fisis dan kekerasan papan blok dari limbah batang kelapa sawit dan sengon, manii, dan mangium finir sebagai lapisan permukaan. Papan blok berukuran 35 x 35 x 2,4 cm3. Perekat yang digunakan adalah fenol formaldehida (PF) dan urea formaldehida (UF) dengan berat labur sebesar 200 g·m-2. Papan blok dibuar dengan tekanan 15 kg·cm-2 selama 10 minutes pada suhu 130 oC untuk perekat PF and 110 oC untuk perekat UF. Sifat fisis dan kekerasan diuji berdasarkan standar SNI 01-7201, JAS 232 2003, dan JIS A 5908-2003. Hasil penelitian menunjukkan bahwa jenis kayu dan jenis perekat dapat membantu meningkatkan sifat fisis dan kekerasan papan blok dengan inti batang kelapa sawit. Nilai kadar air papan blok dibawah 10% dan pengembangan tebal dibawah 12%. Papan blok dengan perekat PF mempunyai nilai delaminasi lebih kecil dibandingkan papan blok dengan perekat UF dan dapat digunakan sebagai keperluan eksterior. Nilai kekerasan papan blok BKS telah memenuhi Standar British yang direkomendasikan untuk aplikasi lantai.Kata kunci: batang kelapa sawit, jenis kayu cepat tumbuh, jenis perekat, papan blok, sifat fisis dan kekerasan
Ketahanan Komposit Kayu Plastik Polistirena terhadap Serangan Jamur Pelapuk Coklat Tyromyces palustris Darma, I.G.K. Tapa; Hadi, Yusuf Sudo; Atmojo, Andri Tri
Jurnal Manajemen Hutan Tropika Vol. 8 No. 1 (2002)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Wood specimens, 50 x 25 x 15 mm were impregnated in styrene and vinil acetate solutions at four concentration levels, using tertbutyl hydroperoxide as acatalyst. The specimens were dried at 60°C for 48 hours after which the solution was polymerized in situ. All specimens, including untreated specimens as control and specimens impregnated with Impralit CKB, were exposed to monoculture a brown rot fungus Tyromyces palustris, a brown rot fungus for 3 months. All wood polymer composite (WPC) specimens obviously showed higher resistance compared with the control. At four concentration levels, WPC of tusam showed excellent result with weight loss value less than specimens treated with Impralit CKB. WPC of karet (Hevea brasiliensis Muell. Arg) and sengon (Paraserianthes falcataria) showed good resistance at high styrene concentration level.
Co-Authors . Suhasman A.A. Ketut Agung Cahyawan W Abdillah, Imam Busyra Achmad Solikhin ADI SANTOSO Adi Santoso Adi Santoso Adi Santoso Adi Santoso Andi SRD Lestari Andi Sri Rahayu Diza Lestari Andri Tri Atmojo Apri H Iswanto Apri Heri Iswanto Ariana Ariana Arif Nuryawan Arif NURYAWAN Astari, Lilik Astuti Arif Barly Barly Barly Barly Darwaman, I Wayan Darwaman, I Wayan Dede Hermawan Deden Edi Rusfiandi Desyanti Desyanti Dian Setyaningsih Dina SETYAWATI Dwi J Priyono Elis Nina Herliyana Endang Sri Lestari Faisal Mahdie Fauzi Febrianto Gina Gina Bachtiar Gustan Pari I Wayan Darmawan I Wayan Darwaman I Wayan Darwaman I.G.K. Tapa Darma Indah Sulistyawati Indah Sulistyawati, Indah Isna Yuniar Wardhani Jajang Suryana Jamaludin MALIK Jamaludin MALIK Jasni Jasni Jasni Jasni Jhon Novarly Simanjuntak Kayano Purba Kunio Tsunoda Kurnia Wiji Prasetiyo Laila Fithri Maryam Laksono Trisnantoro Lusita WARDANI Lusita WARDANI Lusita Wardani Lusita Wardani Lusita Wardani M Rosid Mangurai, Silvia Uthari Nuzaverra Mayang Massijaya, Muh, Yusram Massijaya, Muhamad Yusram Massijaya, Muhamad Yusram Muh Yusram Massijaya Muh Yusram Massijaya, Muh Yusram Muh. Yusram Massijaya Muh. Yusram Massijaya Muhamad Yusram Massijaya Muhamad Yusram Massijaya Muhamad Yusram Massijaya Muhammad Adly Rahandi Lubis Muhammad Firdaus Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Muhammad Y Massijaya Munadian, Munadian Naresworo Nugroho Nifa Hanifa Nurwati Hadjib Nurwati Hadjib Nurwati Hadjib Raudhah Juliati Raudhah Juliati, Raudhah Rita Kartika Sari Rohny Setiawan Maail Salim Hiziroglu Siti Aisyah Siti Nikmatin Solikhin, Achmad Subyakto Subyakto SUHASMAN . Suhasman Suhasman Sujanto) Sujanto) Sulaeman Yusuf Suminar S Achmadi Surdiding Ruhendi Surdiding RUHENDI Surjono Surjokusumo Surjono Suryokusumo Surjono Suryokusumo, Surjono Suwandi Kliwon Suwardi Sumadiwangsa Syamani, Firda Aulya Tengku Muhammad Renzy Hariz Wahyu Hidayat Wardani, Lusita Wardani, Lusita Y. Afidudin Y. Afidudin, Y.