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All Journal Jurnal Penelitian Hasil Hutan Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Penelitian Hasil Hutan Jurnal Penelitian Hasil Hutan

Efrida Basri

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Author-ID : 2623114

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Materials Science & Nanotechnology

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The Effect of Steaming and Heat-Compression on the Properties of Jabon Wood for Furniture Materials Efrida Basri; Abdurachman Abdurachman; Wahyu Dwianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 2 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The inferior properties of juvenile jabon wood (Anthocephalus cadamba Miq.) limit its utility. Densification through heat-compression presently conducted is possibly useful to improve its properties. Preceding heat-compression, jabon wood samples were either steamed or non-steamed. Heat-compression temperatures were varied at 170 C, 180 C and 190 C. Compression was carried out until 20% reduction in wood thickness. Physical and mechanical properties and machining properties of the compressed wood samples were determined in accordance with standard procedures of ASTM D143-94 and ASTM D1666-64, respectively. In the present works, both of the ASTM standard referred were slightly modified. X-ray diffractometer (XRD) was used to determine crystallinity degree of wood. The result showed that either steamed or not, densification was successfully increased the properties of juvenile jabon wood and satisfied the requirement of wood for furniture raw materials.Keywords: furniture, heat pressure, steaming, wood properties, young age-jabon

The Alleviation of Discoloration in Teak (Tectona grandis L.f.) Wood Through Drying and Chemical Treatments Efrida Basri; Dede Rohadi; Trisna Priadi; Imam Wahyudi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 1 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Teak wood is well known as one of the important wood species from Indonesia. The properties of this wood are quite good and delighted by many people. However, the wood processing may cause discoloration on some pieces or boards of this wood. This degrades the wood performance. The wood surface is slightly darkened. Dark-brown streaks often arise distinctly on the brown color of wood surface. Moreover, when the kiln-dried wood is re-exposed in the further process with a planner or a molder, the discoloration may still exist. The aim of this study was to find out an appropriate technique to alleviate discoloration on teak wood. The result showed that drying temperature was the most important factor in the discoloration of teak wood. Among chemical treatments in this experiment, the use of 3% Na2SO3 solution was the most effective way to alleviate discoloration on teak wood

Sifat dan Jadwal Pengeringan Lima Jenis Kayu Papua Barat The Drying Properties and Schedules of Five Wood Species from West Papua Efrida Basri; R.G.N. Triantoro; Wahyudi Wahyudi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 5, No 2 (2007): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

This study was aimed to investigate the drying properties and schedules of five wood species from West Papua, i.e. Tarua (Antiaris toxicaria), Sonokembang (Pterocarpus indicus), Merbau (Intsia bijuga), Mangium (Acacia mangium) and Mendarahan (Myristica longipes). Modified Terazawa Method was used for the drying properties tests. The physical properties measured were airdry density and green moisture content. The determination of drying schedule was carried out by examining the wood drying properties at 100ºC.Results indicated that the drying properties were not affected by density but by wood anatomical structure. One of 5 wood species (i.e. Merbau wood) was resistant to high temperature although its density is the highest. Based on drying properties, all samples of 5 wood species could be classified into 5 drying schedule groups.

Co-Authors Abdurachman Abdurachman Abdurachman ADI SANTOSO Dede Rohadi Gustan Pari Imam Wahyudi Indrawan, Imam Wahyudi Jamal Balfas Jamal Balfas Karnita Yuniarti Nurwati Hadjib R.G.N. Triantoro Rohmah Pari Saefudin Suparman Karnasudirdja T.A. Prayitno Trisna PRIADI Wahyu DWIANTO Wahyudi Wahyudi

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Journal : Jurnal Ilmu dan Teknologi Kayu Tropis