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Jurnal Ilmu dan Teknologi Kayu Tropis

JITKT
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Published by Masyarakat Peneliti Kayu Indonesia

ISSN : - EISSN : 16933834 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal ini mempublikasikan artikel asli baik penelitian dasar maupun terapan di bidang ilmu pengetahuan dan teknologi kayu, bahan berlignoselulosa bukan kayu, hasil hutan lainnya dan industri hasil hutan.

Arjuna Subject : -

Articles 10 Documents

Search results for , issue "Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis" : 10 Documents clear

Ketahanan Oriented Strand Board Bambu Betung dengan Perlakuan Steam pada Strand terhadap Cuaca (Durability of Oriented Strand Board Prepared from Steam -treated Betung Bamboo to Natural Weathering) Sena Maulana; Muhammad QA Damanik; Marwanto Marwanto; Muhammad I Maulana; Adesna Fatrawana; Ihak Sumardi; Nyoman J Wistara; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Penelitian ini bertujuan untuk mengevaluasi ketahanan oriented strand board (OSB) dari bambu betung (Dendrocalamus asper) (BOSB) dengan perlakuan steam pada strand terhadap cuaca. Strand diberi perlakuan steam pada suhu 126 ºC di bawah tekanan 0,14 MPa selama 1 jam. Tiga lapis BOSB dibuat dengan kerapatan target 0,7 g cm-3 yang direkat dengan perekat fenol formaldehida (PF) dengan konsentrasi 8%. Parafin ditambahkan sebanyak 1% dari berat kering oven strand. Bamboo oriented strand board dipaparkan pada cuaca terbuka di Dramaga, Kabupaten Bogor Jawa Barat (6°34’15.72’’Selatan 106°44’17.30’’Timur). Evaluasi sifat fisis dan mekanis BOSB sebelum dan sesudah dipaparkan di udara selama 2 dan 3 bulan dilakukan berdasarkan standar JIS A 5908:2003. Penentuan nilai nisbah retensi MOE dan MOR dilakukan dengan membandingkan nilai MOE dan MOR sebelum dan sesudah pemaparan. Hasil penelitian menunjukkan bahwa perlakuan steam pada strand dapat meningkatkan stabilitas dimensi dan sifat mekanis BOSB. Pemaparan BOSB pada cuaca terbuka dapat menurunkan stabilitas dimensi dan kekuatan BOSB. Ketahanan BOSB dengan perlakuan steam pada strand terhadap pemaparan alami lebih tinggi dibandingkan dengan tanpa perlakuan steam.

Strategi Pengembangan Usaha pada Industri Kayu Gergajian Melalui Pendekatan SWOT dan IFAS-EFAS Analysis (Business Development Strategy in Sawn Timber Industry Through the SWOT Approach and IFAS-EFAS Analysis) Makkarennu Makkarennu; Tri Astuti; Ridwan Ridwan
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Sawn timber industry is one of the growing timber industries in Indonesia; however, this industry is faced with several problems, including lack of raw materials, product quality, in-efficiency and similar industry competition. The purpose of this study was to determine the quadrant position in the SWOT diagram of sawmill lumber industry and determine the most appropriate strategy in accordance with the position of the quadrant on the SWOT diagram. In-depth interviews method was select to measure strengths; weaknesses, opportunity and threat included senior manager operational and employees of the PT. Madani Cahaya utama. Data were analyzed using SWOT in which the scores of internal factor (Internal Factor Analysis Summary-IFAS) and external factor (External Factor Analysis Summary-EFAS) were calculated. The results showed that score of internal factor and external factor were greater than 2. Hence, the position of SWOT for the small sawmill was located in quadrant 1, suggesting that a company has strength to take an advantage of the existing opportunities.

Sifat Fisis dan Mekanis Papan Partikel Hibrida dari Kayu Cepat Tumbuh dan Bambu dengan Perlakuan Perendaman Panas ( Physical and Mechanical Properties of Hybrid Particleboard from Fast Growing Wood Species and Bamboo with Heat Immersion Treatment) Soleh Muhamad; Marwanto Marwanto; Muhammad I Maulana; Sena Maulana; Adesna Fatrawana; Wahyu Hidayat; Rita K Sari; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The purpose of this study was to evaluate the physical and mechanical properties of hybrid particleboard made from combination of sengon wood (Falcataria moluccana), jabon wood (Anthocephalus cadamba), and betung bamboo (Dendrocalamus asper) with hot water immersion treatment. Pretreatment with hot water immersion was carried out in water bath at 80 ºC for 2 hours. The boards were made using urea formaldehyde (UF) adhesive with (30x30x0.9) cm3 size and 0.6 g cm-3 target density. Physical and mechanical properties of hybrid particleboards were evaluated based on JIS A 5908-2003 standard. The results showed that the combination treatment with bamboo particles can increase the mechanical properties and dimensional stability of the particleboards especially when combined with jabon particles. Hot water immersion treatment can improve the mechanical properties (MOE, MOR and IB) of hybrid particleboards. However, hot water immersion treatment decreased dimensional stability (thickness swelling and water absorption) of hybrid particleboards.

Sifat Mekanis Bahan Kayu pada Rumah Tradisional Batak Karo (Mechanical Properties of Timber Materials on Batak Karo Traditional House) F. Dona Artha; Yulianto P Prihatmaji
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Batak Karo Traditional House in North Sumatra, known as Siwaluh Jabu used pengki (Ulmus lanceifolia), ingul (Toona sureni), haudolok (Syzygium sp.), and simartolu (Schima sp.) woods. Evaluation mechanical properties of wood with compression, three-point bending, four point bending, and four point shear test was performed to determine the compressive strength, MOR, shear strength, MOE, and shear modulus (G). To determine the differences of mechanical properties between Batak Karo and Java wood, teakwood (Tectona grandis) and Jackfruit wood (Artocarpus heterophyllus) are selected as a control specimen. The value of MOE and yield stress have strong relationship with density. The higher the density resulted in the higher MOE and yield stress. MOE, MOR, and G in the bending test have not strong relationship with density. The value of MOR and G, teakwood from Java has similar mechanical properties to pengki wood, while nangka (Artocarpus heterophyllus) wood has similar mechanical properties to haudolok wood. Shear strength has a weak relationship with the density. In terms of shear strength, teak wood has similar mechanical properties to pengki wood, while nangka wood has similar mechanical properties to haudolok wood.

Karakteristik Lignin Empat Jenis Bambu (Lignin Characteristic of Four Bamboo Species) Deded S Nawawi; Rita K Sari; Nyoman J Wistara; Adesna Fatrawana; Puji Astuti; Wasrin Syafii
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Lignin is one of the major component of bamboo, together with cellulose and hemicellulose, which may differ comparing to wood lignin. Lignin characteristics of four bamboos species, i.e. betung (Dendrocalamus asper), ampel (Bambusa vulgaris), andong (Gigantochloa nigrociliata), and tali (Gigantochloa apus) were investigated. As lignin characteristics; lignin content and proportion of lignin monomer were investigated by Klason method, UV spectrophotometry, and Pyrolysis Gas-Chromatography analysis, respectively. Lignin content of bamboos varies depending on species and position of sample. Bamboo lignin was categorized into syringyl-guaiacil-p-hydroxyohenil (S-G-H) lignin. There was high correlation between proportion of syringyl unit with acid-soluble lignin obtained during Klason lignin procedure.

Modifikasi Faktor Konversi Format dan Faktor Normalisasi Reliabilitas dalam Standar ASTM D 5457 untuk Penyempurnaan Standar SNI 7973:2013 (Modification of Format Conversion Factor and Reliability Normalization Factor in the ASTM D 5457 Standard Applicable for SNI 7973:2013 Standard) Leonard D D Liliefna; Naresworo Nugroho; Lina Karlinasari; Sucahyo Sadiyo
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The Indonesian SNI 7973:2013 standard for wood design specification was an adopted standard from the USA national design specification (NDS) 2012. However, due to the climate differences between USA and Indonesia, the SNI 7973:2013 standard should be further modified in order to meet the climate condition in Indonesia. Format conversion factor (KF) and reliability normalization factor (KR) specified in the ASTM D 5457 standard contained the snow load for the duration of load factor. Therefore, the objectives of this study were (1) to replace snow load with occupancy live load to revise KF, (2) to use the revised KF and safety factors for softwood and hardwood to perform the reliability analysis on calculated resistance factors (fc), (3) calculate the new KR values using the revised fc. The result of FORM reliability analysis showed that there were, on the average, 15 and 26% increases of the calculated KR values, respectively, for softwood and hardwood, over the calculated KR values according to the ASTM D 5457 standard for each given coefficient of variation of material resistance distribution.

Baterai Ramah Lingkungan dari Limbah Serbuk Kayu Merbau (Intsia bijuga) dan Matoa (Pometia sp.) (Eco-friendly battery from Merbau (Intsia bijuga) and Matoa (Pometia sp.) sawdust) Dessy Ernawati; Muliyana Arifudin; Susilo B Husodo
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

This research aimed to elucidate the potency of merbau and matoa sawdust as filler material of dry cell battery. The sawdust was ground, sieved to get a-80 mesh particle size and then made into paste. Then, the paste was put into the battery that its electrolyte has been removed previously. There were 40 batteries tested based on 3 treatments, namely wood species (A), charging time (B) and usage method (C). Each variable was tested with 5 replications. The battery was tested for its voltase generated and usage duration. The result indicated that the highest voltase was obtained from battery with matoa groundwood which was directly used for a stopwatch (1.99 volt), while the lowest voltase was found in battery with merbau groundwood which was kept for 20 minutes after charging, before it was used for the tested stopwatch (0.43 volt). Besides, the highest usage duration (˃20 mins) was found in both bio-batteries from merbau and matoa groundwood which were directly used after charging, with total 21 batteries. Sawdust of merbau and matoa has potency to be used as bio-battery, but their voltage generated and usage duration are still low, so several challenging problems are needed to be addressed.

Perubahan Kadar Komponen Kimia Bambu Kuning akibat Modifikasi Steam dan Pembilasan (Change of Chemical Component Content in Kuning Bamboo due to Steam and Rinsing Modification) Muhammad I Maulana; Abi K Arif; Deded S Nawawi; Nyoman J Wistara; Siti Nikmatin; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Bamboo is a forest product that has potential as substitution of wood for the raw material of any products of forest products processing. Oriented Strand Board (OSB) made from bamboo is more superior compared to the wood one in physical and mechanical properties. Steam and rinsing treatments can improve the OSB properties that occur due to changes in the chemical components of bamboo, but research on the effect of the treatment has not been done for kuning bamboo. The objective of this reseach were to identify the changes of chemical components content in kuning bamboo (Bambusa vulgaris var. striata.) due to steam, steam with distillation water rinsing and steam with 1% NaOH rinsing treatments. The chemical component of bamboo was analyzed according to Technical Association of the Pulp and Paper Industry (TAPPI) standards. The results showed that alpha-cellulose and lignin contents were relatively stable. In addition, hollocellulose, hemicellulose and extractives decreased, while the pH value was increased by treatments. The decreased of hemicellulose and extractive substances, as well as increased pH values can improve the quality of OSB produced.

Optimasi Aktivasi Arang Aktif dari Arang Hidro Tempurung Buah Kelapa Sawit Menggunakan Metodologi Permukaan Respon (Optimization of Activated Carbon from Oil Palm Shell Hydrochar Using Response Surface Methodology) Ismail Budiman; Dede Hermawan; Fauzi Febrianto; Subyakto Subyakto; Gustan Pari
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v17i1.457

In this study, activated carbon was prepared using hydrochar derived from oil palm shell through hydrothermal carbonization (HTC), and activated by 5% kalium hydroxide (KOH). The activation process was carried out using a temperature of 700 °C - 800 °C, with activation time of 60-120 minutes. The parameters of the activation process were optimised by response surface methodology (RSM). The central composite design (CCD) is used to determine the effect of activation temperature and activation time on some responses i.e. proximate analysis, ultimate analysis, methylene blue number, iodine number, electrical conductivity, yield percentage, and some gas pollutants adsorption. The results showed that almost all of activated charcoal met the technical standard of activated charcoal of SNI 06-3730-1995 for moisture content, ash content, volatile matter, fixed carbon, iodine number, and methylene blue number. The optimum conditions for the activation process involving the response observed were at 787.85 °C for 116.52 minutes

Keawetan dan Stabilitas Dimensi Papan Partikel Hibrida Bambu-Kayu dengan Perlakuan Steam dan Perendaman Panas (Durability and Dimensional Stability of Hybrid Particleboard of Bamboo-Wood with Steam and Hot Water Immersion Treatment) Wahyu Hidayat; Intan F Suri; Rahmat Safe’i; Christine Wulandari; Wisnu Satyajaya; Indra G Febryano; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v17i1.462

Development of bamboo as an alternative material for particleboard production has been increasing due to its fast growth, high productivity, high strength property, and light weight. The aims of this study were to determine the effects of particle pre-treatment on the durability and dimensional stability of particleboard. Particles were made from betung (Dendrocalamus asper)/B, jabon (Anthocepallus cadamba)/J, and sengon (Falcataria moluccana)/S pretreated by steam and hot water immersion. Five combinations of particleboard consisted of three homogenous boards (B-B-B, J-J-J, S-S-S) and two hybrid-particleboards (J-B-J, S-B-S) were manufactured using urea formaldehyde of 10% resin level and target density of 0.6 g cm-3. Durability of particleboards was evaluated by grave-yard test and the dimensional stability of particeboards was determined by measuring thickness swelling during a wet-dry cyclic test. The results showed that pre-treatment on particles significantly improved the durability and dimensional stability of the boards, showing lower weight loss and thickness swelling than control boards. Homogenous wood particleboards (J-J-J and S-S-S boards) showed higher weight loss and thickness swelling than bamboo particleboard (B-B-B), combining wood and bamboo particles into hybrid-particleboards (J-B-J and S-B-S boards) has improved the durability and dimensional stability of the boards.

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