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Fauzi Febrianto
Forest Product Dept., Forestry Faculty, IPB University, Darmaga Campus, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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The acidity of wood and panel product was important factor to impact on metal corrosion and give effect on adhesive curing time.  The objective of this research was  to explore of pH and buffering capacity from nine tropical woods.  Method to determination of pH and buffering capacity  reffers to Johns and Niazi (1980) experiment. The result of this research showed that nine tropical woods which observed had different acidity and buffering capacity. The range of wood acidity had pH 4-7.  The cor Apri Heri ISWANTO; Tito SUCIPTO; Fauzi FEBRIANTO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The acidity of wood and panel product was important factor to impact on metal corrosion and give effect on adhesive curing time.  The objective of this research was  to explore of pH and buffering capacity from nine tropical woods.  Method to determination of pH and buffering capacity  reffers to Johns and Niazi (1980) experiment. The result of this research showed that nine tropical woods which observed had different acidity and buffering capacity. The range of wood acidity had pH 4-7.  The correlation value of pH and buffering capacity from this research about 4-5 for base and acid buffering.   Keywords:  acidity of wood, pH, buffering capacity.
BASIC PROPERTIES OF SENTANG WOOD (Melia excelsa Jack) AND ITS SUITABILITY AS ORIENTED STRAND BOARD MATERIALS Apri Heri Iswanto; Fauzi Febrianto; Imam Wahyudi
PERENNIAL Vol. 6 No. 2 (2010)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v6i2.201

Abstract

Tujuan penelitian ini adalah untuk melihat kesesuaian kayu sentang sebagai bahan baku berdasarkan tinjauan sifat dasarnya dalam hal ini anatomi, fisis, dan kimia. Metode yang digunakan dalam penentuan struktur kayu yaitu teknik maserasi dan mikrotom, sifat fisik berdasarkan standar BS-373 (1957), dan sifat kimia menggunakan standar TAPPI. Hasil penelitian menunjukkan bahwa (1) struktur kayu: kayu sentang cocok dipergunakan sebagai bahan baku OSB karena memiliki dinding sel tipis sampai sedang, pori relatif banyak. Ini merupakan dua faktor yang berperan penting dalam hal perekatan dan proses pengempaan; (2) sifat fisik: kayu sentang memiliki BJ sedang, nilai T/R untuk kering udara dan oven masing-masing 1,25 and 1,17; serta (3) sifat kimia: kayu sentang memiliki kandungan ekstraktif sedang, kandungan selulosa tinggi dan lignin dan kadar abu sedang. Kata kunci: kayu sentang, struktur kayu, fisis, kimia
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 Tekat Dwi Cahyono; Zahrial Coto; Fauzi Febrianto
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
Measurement of Microfibril Angle Using X-Ray Diffraction and Light Microscope on 5-year-old Super and Conventional Teak Wood Setiowati Setiowati; Ratih Damayanti; I. Ketut N. Pandit; Fauzi Febrianto; Gustan Pari
Wood Research Journal Vol 5, No 1 (2014): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2014.5.1.10-17

Abstract

The long   harvest time  causes the   processing  industry  manufactured  from   teak  wood (Tectona  grandis L.  f.)  has experienced  a lot of declines. To overcome this  problem,  currently,  in Indonesia  many types  of fast-growing  teak  have been developed, one of which is Jati Unggul Nusantara (JUN). Trees that  are accelerated in growth, are likely to cause changes in their  anatomical  structure. The anatomical  structure of wood is one of the  basic  properties  that  greatly influences  the  use of wood as a raw  material. Even small changes in cell shape and size can change the  properties of wood as a raw  material. One of the  anatomical  structures of wood, namely the  ultramicroscopic  structure that  affects the  quality  of wood, is the  microfibril angle (MFA). The purpose of this  study is to determine  the  MFA of JUN at the  planned cutting  age of 5 years, compared to conventional teak at  the  same age. There are two  methods used, namely using X-Ray Diffraction (XRD) and measuring the elongation  of  the  pit  apertures slope of  the  fiber  cells using  a light  microscope,  which was obtained from  the  maceration process. As  a result, JUN's MFA is 22.09°, smaller than  the  conventional teak of 25.29°. This is because JUN was developed from  top  cuttings  so  although  still  young, it  already  reflects  the   characteristics  of  mature teak. The results of  the  MFA measurements on  JUN using two  methods (XRD and light microscope), resulted different values. It is different from  the  MFA measurement results on  conventional teak. It is recommended to  measure the MFA in JUN wood by  using XRD, because possibly, due to accelerated  growth, simple pits with an  oval shape turn  into circular. This difference causes the  results of the JUN MFA measurement using a light microscope based on the  pit apertures slope to be  inconsistent, subjective, and different results  in  other  pits   contained  in  the   fiber   even  though they  are  closely  associated. However,  in  conventional  teak, measurements using a light microscope are possible because the  shape of the  pit is oval so  that  the  slope of the  elongation of the  pit aperture can be  determined easily, and is more consistent with more uniform values in the  same individual fiber
Wood Properties of 5-year-old Fast Grown Teak Ratih Damayanti; Barbara Ozarska; I Ketut N. Pandit; Fauzi Febrianto; Gustan Pari
Wood Research Journal Vol 9, No 2 (2018): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2018.9.2.29-34

Abstract

Jati Unggul Nusantara (JUN) is one of fast growing plantation teak that has been widely cultivated in Indonesia. This teak has been developed to be harvested after 5 years when its diameter reaches 25-32 cm (diameter at breast high). The diameter of JUN is usually three times larger than the conventional plantation teak (teak cultivated from seed) at the same age, and the same as 30-40 year-old mature teak. Preliminary research was conducted to determine anatomical and selected physical properties of 5-year-old JUN teak, as well as its suitability for furniture production. The results revealed that wood color, texture, and grain pattern of JUN were slightly different from the mature conventional teak. The length of fiber cells was similar as in the mature teak. There were differences in ultramicroscopic structure of JUN: the mean micro fibril angle was narrower, and the crystallites degree was larger. Shrinkage values from green to 12% moisture content were:  0.70 (radial-R) and 1.62 (tangential-T), and from green to oven dry were 1.59 (R) and 3.29 (T). T/R ratio was 2.34. Specific gravity in air dry condition was 0.52. Based on the research results it appears that 5-year-old JUN may be suitable for the production of medium quality furniture products. More research is required to investigate and enhance the properties of JUN for high quality products.
Analisis Modulus Geser dan Pengaruhnya terhadap Kekakuan Panel Laminasi Kayu Samama (Antocephallus Macrophyllus) Tekat Dwi Cahyono; Imam Wahyudi; Trisna Priadi; Fauzi Febrianto; Syarif Ohorella
Jurnal Teknik Sipil Vol 21 No 2 (2014)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2014.21.2.3

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.
Sudut Kontak dan Keterbasahan Dinamis Kayu Samama pada Berbagai Pengerjaan Kayu Tekat Dwi Cahyono; Imam Wahyudi; Trisna Priadi; Fauzi Febrianto; Syarif Ohorella
Jurnal Teknik Sipil Vol 24 No 3 (2017)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2017.24.3.3

Abstract

AbstrakSudut kontak dan keterbasahan dinamis penting diketahui untuk menganalisis keteguhan rekat. Penelitian ini bertujuan mengetahui sudut kontak dan keterbasahan dinamis kayu samama pada berbagai pengerjaan kayu. Metode yang digunakan adalah meneteskan air destilata, perekat UF dan isosianat dengan ukuran tertentu pada permukaan kayu hasil gergaji dan hasil mesin kupas. Permukaan kayu gergajian yang ditetesi oleh cairan adalah permukaan radial, tangensial dan permukaan yang membentuk sudut 45° antara radial dan tangensial. Sementara itu permukaan finir hasil pengupasan adalah permukaan tight dan loose. Kayu gergajian maupun finir yang dianalisis pada penelitian ini, keduanya diambil dari bagian juvenil dan dewasa. Keterbasahan dinamis dianalisis menggunakan model SD. Hasil penelitian menunjukkan bahwa porositas permukaan bahan berpengaruh terhadap keterbasahan kayu samama oleh cairan. Permukaan tangensial memiliki sifat yang lebih mudah mengalami keterbasahan dibandingkan dengan permukaan radial maupun TR (permukaan antara radial dan tangensial) sementara bagian juvenil memiliki tingkat keterbasahan lebih baik dibandingkan dewasanya. Finir samama memiliki tingkat keterbasahan setara dengan permukaan TR kayu samama dimana bagian juvenil finir memiliki laju keterbasahan yang lebih baik dibandingkan dengan finir dewasa. Disamping itu, bagian loose finir lebih cepat terbasahi oleh cairan dibandingkan bagian tight.AbstractContact angle and dynamic wettability is important in determining bonding strength, therefore, this study addressed contact angle and dynamic wettability of samama wood in various woodworking. Method used in the study was by dripping distill water, UF and isocyanate adhesives in particular size on the surface of wood processed by circular saw and peeling machine. The surfaces of sawn wood which dripped by those liquids were radial, tangential, and surface which made a 45° angle between radial and tangential. Meanwhile the tested surfaces of peeled-veneer were tight and loose surfaces. Both sawn wood and veneer in this study were taken from juvenile and mature part of the samama wood. Dynamic wettability was analyzed using SD model. The results showed that porosity of the surface significantly affected the wettability of samama wood by liquid. The profile of tangential surface made it had a better wettability than radial and TR (i.e. surface between radial and tangential) surfaces. Meanwhile, juvenile part showed better wettability than the mature one. The samama veneer had equal wettability with TR surface of sawn wood in which the juvenile one showed better wettability than the mature veneer. Further, it was noticed that loose surface of the veneer was wetted faster than the tight one.
Kualitas Glulam Samama dengan Kombinasi Kayu Mangium dan Mahoni (The Quality of Samama Glulam and Its Combination with Mangium and Mahogany Wood) Tekat D Cahyono; Fauzi Febrianto; Syarif Ohorella
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 15, No 1 (2017): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.544 KB) | DOI: 10.51850/jitkt.v15i1.351

Abstract

Previous study on several types of samama glulam had shown the MOE and MOR which is not meet JAS 2007. The recent study addressed the glulam construction from samama wood combined with two commercial woods to improve the quality of resulting glulam. Mangium (Acacia mangium) and mahogany (Swietenia mahogany) woods were laminated with samama wood using isocyanate adhesive at a spread rate of 200 g m-2 and then clamped with 30 cm gap between the clamp for 3 hours. Nine types of glulam were made with and without a combination of 1 cm lamina from the three types of wood species. The results showed the difference of density between samama glulam with the other types. Furthermore, the moisture content, hot water delamination, cold water delamination, MOE and MOR of the products have met the requirements of JAS 2007 for structural wood. Bonding strengths of most types of glulam have met the standard except for samama and mahogany glulam without the combination. The results of this study strengthened the potency of samama as glulam material for the structural application.Keywords: glulam, mahogany, mangium, samama, structural.
Characterization of Gutta Percha and Its Application as Plywood Adhesive Tati Karliati; Fauzi Febrianto; Wasrin Syafii; Imam Wahyudi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 1 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.535 KB) | DOI: 10.51850/jitkt.v10i1.121

Abstract

Gutta percha resin is a biodegradable and renewable elastomer trans-1,4- isoprene rubber and obtained from Palaquium tree through extraction of leaf or tapping of stem. The purposes of this research were to characterize the gutta percha and its application for wood (plywood) adhesive. Characteristics of gutta percha evaluated in this experiment were moisture content (MC), density, ash content, melting and decomposition temperatures. Plywood performance were evaluated under SNI 01-50019.10-2001 standard. Four different glue spread i.e.,175, 200, 225 and 250 g m-2 were introduced in this experiment. Five percent of maleic anhydride (MAH) and 1% of benzoyl peroxide (BPO) were used as a modifier and an initiator, respectively. The result showed that gutta percha has white to creamy color. The density, MC and ash content of gutta percha were 1.01 g cm-3, 6.09%, and 0.074% respectively. The melting and decomposition temperatures of gutta percha were noted 72.6°C and 482.2°C, respectively. Modification of gutta percha with 5% MAH enhanced the shear strength of resulted plywood. Modified gutta percha with 5% MAH in absence of BPO with glue spread of 250 g.cm-2 can be used for interior and exterior plywood adhesive. Their shear strength value fulfilled the requirement of SNI 01-5008.2-1999 standard.Key words : benzoil peroxide, glue spread gutta percha, maleic anhydride, plywood, wood adhesive
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.142 KB) | DOI: 10.51850/jitkt.v17i1.461

Abstract

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.
Co-Authors A.A. Ketut Agung Cahyawan W Abi K Arif Adesna Fatrawana Adesna Fatrawana Adiyantara Gumilang Adrin Adrin Aginsa T. Putri Agustina Purwaningsih Ahmad Zailani Andi D Yunianti Andi Z Pranata Anne Carolina Apri H Iswanto Apri Heri Iswanto Apri Iswanto Apri Iswanto, Apri Arif Nuryawan Arinana Arinana Barbara Ozarska Byantara D Purusatama Byantara Darsan Purusatama Ching K Man Christine Wulandari Dede Hermawan Deded Sarip Nawawi Denni Prasetia Doni Hapsoro Dwi R. Endriadilla Edi S. Bakar Elvara D Satria Fengky Satria Yoresta Go Un Yang Gustan Pari Gustan Pari Gustan Pari Gustan Pari Handian Purwawangsa Hanny Hafiar Hikma Yanti I Ketut N. Pandit I Nyoman Jaya Wistara I. Ketut N. Pandit Ihak Sumardi Ihak Sumardi Imam busyra Imam Wahyudi Indrawan, Imam Wahyudi Indra G Febryano Intan F Suri Intan Purnamasari Irawati AZHAR Ismail Budiman Iwan Risnasari Jemi, Renhart Jong Ho Kim Karliati, Tati Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto, Marwanto Maryam Jamilah Lubis Maulana, Mohammad I Maulana, Muhammad I Maulana, Sena Min Lee Mohamad Amarullah Mohamad I Sya'bani Mohd. H. Sahri Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Hanafi Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Muhammad QA Damanik Nam H Kim Nam Hun Kim Nam Hun Kim Nam-Hun Kim Nicken O Putri Nurmadina Nurmadina Park, Se-Hwi Purnawati, Renny Rahmat Safe’i Ratih Damayanti Ratih Damayanti Renhart Jemi Rio Ardiansyah Murda Rita K Sari Rita K Sari Rita Kartika Sari Rudi Hartono Rynaldo Davinsy Se-Hwi Park See P Hwee Sehwi Park Setiowati Setiowati Seung Hwan Lee Siti Nikmatin Soleh Muhamad Subyakto Subyakto Sucahyo Sadiyo Sucipto, Tito Sudirman Sudirman Surdiding RUHENDI Surdiding Ruhendi Surdiding Ruhendi Syarif Ohorella Tekat D Cahyono Tekat Dwi Cahyono Tibertius A. Prayitno Trisna PRIADI Wahyu DWIANTO Wahyu Hidayat Wasrin Syafii Widya FATRIASARI Wisnu Satyajaya Wulan Starini Yusuf Hadi Yusuf Hadi, Yusuf Yusuf Sudo Hadi Zahrial COTO Zaidon Ashaari