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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 Jurnal Penelitian Hasil Hutan
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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Journal : Makara Journal of Technology

 1 
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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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).
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 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 Baskara, Muhammad Iqbal Adi 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 Endang Sri Lestari Faisal Mahdie Fauzi Febrianto Gina Gina Bachtiar Gustan Pari 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 Lubis, Muhammad Adly Rahandi 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 Maulana, Muhammad Iqbal 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 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 Syamsiar, Syamsiar Tengku Muhammad Renzy Hariz Wahyu Hidayat Wahyu Hidayat Wardani, Lusita Wardani, Lusita Y. Afidudin Y. Afidudin, Y.