Articles
<![CDATA[PERILAKU PENGERINGAN ROTAN MANAU (CALAMUS MANAN MIQ.) DAN ROTAN SEMAMBU (CALAMUS SCIPIONUM LOUR) ]]>
<![CDATA[Efrida Basri]]>;
<![CDATA[Suparman Karnasudirdja]]>
<![CDATA[ Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengembangan Hasil Hutan ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.20886/jphh.1987.4.1.12-16
<![CDATA[Rattan is one of important minor forest products in Indonesia. In fact world supply of this material comes mainly from this country. One of the weaknesses of rattan is its susceptibility to various micro-organism specifically staining fungi and borer insects. The former flourishes when the moisture content of the cane is high. Immediate drying of rattan cane is therefore essential. Studies on the air drying and dehumidifying of two species of rattan canes have been undertaken, which include rate of drying and drying performance of the samples. As has been anticipated, the result shows that drying by dehumidifier is much faster compared with that of air drying. However, the quality of the two rattan species (degree of staining, insect attack, shrinkage, and colour) are about the same. The results also show that air drying rattans produces better gloss compared with that of dehumidifier drying. Other rattan defects due to drying speed such as shrinkage or wrinkle, were not noticeable.]]>
<![CDATA[EFEKTIVITAS BAHAN PENGISI KAYU PADA TIGA JENIS KAYU ]]>
<![CDATA[Jamal Balfas]]>;
<![CDATA[Efrida Basri]]>;
<![CDATA[Adi Santoso]]>
<![CDATA[ Jurnal Penelitian Hasil Hutan Vol 36, No 2 (2018): Jurnal Penelitian Hasil Hutan ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengembangan Hasil Hutan ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (585.623 KB)
|
DOI: 10.20886/jphh.2018.36.2.113-128
<![CDATA[Penggunaan wood filler adalah sangat penting dalam pekerjaan finishing kayu. Namun wood filler komersil yang tersedia di pasar dewasa ini umumnya terbuat dari resin yang menggunakan pelarut kimia, seperti poliuretan dan nitroselulosa. Produk ini mengandung bahan yang dapat melepas polutan, yang dapat merusak lingkungan dan berbahaya bagi kesehatan. Dalam penelitian ini dilakukan eksplorasi penggunaan dan performa bahan wood filler alternatif dan komersial. Wood filler alternatif dalam penelitian ini dibuat dari campuran tepung dempul dengan resin organik yaitu sirlak, akrilik dan polivinil asetat. Performa wood filler alternatif diuji secara fisis, mekanis dan kimia pada kayu tusam, jabon dan karet, serta dibandingkan dengan performa bahan dempul komersial, yaitu nitroselulosa. Contoh uji ketiga jenis kayu dilabur dengan larutan wood filler kemudian dikeringkan. Perubahan berat dan dimensi contoh uji akibat laburan ditentukan pada kondisi basah dan kering. Ketahanan film wood filler terhadap pereaksi kimia dan pelarut diuji menurut prosedur ASTM. Ketahanan gores pada film wood filler diuji untuk mengetahui sifat mekanis dari formula wood filler. Kedekatan warna antar perlakuan wood filler dengan warna kayu kontrol dievaluasi dengan menggunakan prosedur Cielab. Hasil penelitian menunjukkan bahwa pertambahan berat dan perubahan dimensi akibat laburan wood filler beragam menurut jenis kayu. Contoh kayu tusam mengalami perubahan berat dan dimensi lebih besar daripada kayu jabon dan karet. Semua formula dempul organik mampu melindungi kayu dari intrusi air, setara dengan wood filler komersial (WF). Formula wood filler organik memiliki ketahanan gores lebih tinggi, ketahan lebih rendah terhadap larutan kimia serta penampilan warna lebih baik daripada wood filler komersial (WF). ]]>
<![CDATA[PENGARUH PENGGORENGAN DAN CARA PENGERINGAN TERHADAP SIFAT ROTAN BALUKBUK (CALAMUS BURCKIANUS) DAN ROTAN SEUTI (CALAMUS ORNATUS) ]]>
<![CDATA[Efrida Basri]]>;
<![CDATA[Suparman Karnasudirdja]]>
<![CDATA[ Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengembangan Hasil Hutan ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (4756.743 KB)
|
DOI: 10.20886/jphh.1987.4.1.17-21
<![CDATA[This paper presents the result of laboratory drying tests on 1wo rattan species. The samples from each species were devided into two groups. The first group was fried in kerosene before drying, and the second was left unfried. Each group was then subjected to two drying conditions, namely drying under roof (in-door) and out-door. The test were terminated when the samples reached equilibrium moisture content, i.e . approximately 16%. The result of evaluation rattan qualitv based on colour is presented together with their drying speed. It shows that both balukbuk and seuti rattans when fried in kerosene dry faster than when untried. However, frying seems to produce darker colour after drving.]]>
<![CDATA[PERILAKU PENGERINGAN ROTAN MANAU (CALAMUS MANAN MIQ.) DAN ROTAN SEMAMBU (CALAMUS SCIPIONUM LOUR) ]]>
<![CDATA[Efrida Basri]]>;
<![CDATA[Suparman Karnasudirdja]]>
<![CDATA[ Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengembangan Hasil Hutan ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.20886/jphh.1987.4.1.12-16
<![CDATA[Rattan is one of important minor forest products in Indonesia. In fact world supply of this material comes mainly from this country. One of the weaknesses of rattan is its susceptibility to various micro-organism specifically staining fungi and borer insects. The former flourishes when the moisture content of the cane is high. Immediate drying of rattan cane is therefore essential. Studies on the air drying and dehumidifying of two species of rattan canes have been undertaken, which include rate of drying and drying performance of the samples. As has been anticipated, the result shows that drying by dehumidifier is much faster compared with that of air drying. However, the quality of the two rattan species (degree of staining, insect attack, shrinkage, and colour) are about the same. The results also show that air drying rattans produces better gloss compared with that of dehumidifier drying. Other rattan defects due to drying speed such as shrinkage or wrinkle, were not noticeable.]]>
<![CDATA[EFEKTIVITAS BAHAN PENGISI KAYU PADA TIGA JENIS KAYU ]]>
<![CDATA[Jamal Balfas]]>;
<![CDATA[Efrida Basri]]>;
<![CDATA[Adi Santoso]]>
<![CDATA[ Jurnal Penelitian Hasil Hutan Vol 36, No 2 (2018): Jurnal Penelitian Hasil Hutan ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengembangan Hasil Hutan ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.20886/jphh.2018.36.2.113-128
<![CDATA[Penggunaan wood filler adalah sangat penting dalam pekerjaan finishing kayu. Namun wood filler komersil yang tersedia di pasar dewasa ini umumnya terbuat dari resin yang menggunakan pelarut kimia, seperti poliuretan dan nitroselulosa. Produk ini mengandung bahan yang dapat melepas polutan, yang dapat merusak lingkungan dan berbahaya bagi kesehatan. Dalam penelitian ini dilakukan eksplorasi penggunaan dan performa bahan wood filler alternatif dan komersial. Wood filler alternatif dalam penelitian ini dibuat dari campuran tepung dempul dengan resin organik yaitu sirlak, akrilik dan polivinil asetat. Performa wood filler alternatif diuji secara fisis, mekanis dan kimia pada kayu tusam, jabon dan karet, serta dibandingkan dengan performa bahan dempul komersial, yaitu nitroselulosa. Contoh uji ketiga jenis kayu dilabur dengan larutan wood filler kemudian dikeringkan. Perubahan berat dan dimensi contoh uji akibat laburan ditentukan pada kondisi basah dan kering. Ketahanan film wood filler terhadap pereaksi kimia dan pelarut diuji menurut prosedur ASTM. Ketahanan gores pada film wood filler diuji untuk mengetahui sifat mekanis dari formula wood filler. Kedekatan warna antar perlakuan wood filler dengan warna kayu kontrol dievaluasi dengan menggunakan prosedur Cielab. Hasil penelitian menunjukkan bahwa pertambahan berat dan perubahan dimensi akibat laburan wood filler beragam menurut jenis kayu. Contoh kayu tusam mengalami perubahan berat dan dimensi lebih besar daripada kayu jabon dan karet. Semua formula dempul organik mampu melindungi kayu dari intrusi air, setara dengan wood filler komersial (WF). Formula wood filler organik memiliki ketahanan gores lebih tinggi, ketahan lebih rendah terhadap larutan kimia serta penampilan warna lebih baik daripada wood filler komersial (WF). ]]>
<![CDATA[PENGARUH PENGGORENGAN DAN CARA PENGERINGAN TERHADAP SIFAT ROTAN BALUKBUK (CALAMUS BURCKIANUS) DAN ROTAN SEUTI (CALAMUS ORNATUS) ]]>
<![CDATA[Efrida Basri]]>;
<![CDATA[Suparman Karnasudirdja]]>
<![CDATA[ Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengembangan Hasil Hutan ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.20886/jphh.1987.4.1.17-21
<![CDATA[This paper presents the result of laboratory drying tests on 1wo rattan species. The samples from each species were devided into two groups. The first group was fried in kerosene before drying, and the second was left unfried. Each group was then subjected to two drying conditions, namely drying under roof (in-door) and out-door. The test were terminated when the samples reached equilibrium moisture content, i.e . approximately 16%. The result of evaluation rattan qualitv based on colour is presented together with their drying speed. It shows that both balukbuk and seuti rattans when fried in kerosene dry faster than when untried. However, frying seems to produce darker colour after drving.]]>
<![CDATA[The Effect of Steaming and Heat-Compression on the Properties of Jabon Wood for Furniture Materials ]]>
<![CDATA[Efrida Basri]]>;
<![CDATA[Abdurachman Abdurachman]]>;
<![CDATA[Wahyu Dwianto]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 2 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis ]]>
Publisher : <![CDATA[Masyarakat Peneliti Kayu Indonesia ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (294.772 KB)
|
DOI: 10.51850/jitkt.v12i2.72
<![CDATA[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]]>
<![CDATA[The Alleviation of Discoloration in Teak (Tectona grandis L.f.) Wood Through Drying and Chemical Treatments ]]>
<![CDATA[Efrida Basri]]>;
<![CDATA[Dede Rohadi]]>;
<![CDATA[Trisna Priadi]]>;
<![CDATA[Imam Wahyudi]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 1 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis ]]>
Publisher : <![CDATA[Masyarakat Peneliti Kayu Indonesia ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (206.368 KB)
|
DOI: 10.51850/jitkt.v2i1.322
<![CDATA[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]]>
<![CDATA[Sifat dan Jadwal Pengeringan Lima Jenis Kayu Papua Barat The Drying Properties and Schedules of Five Wood Species from West Papua ]]>
<![CDATA[Efrida Basri]]>;
<![CDATA[R.G.N. Triantoro]]>;
<![CDATA[Wahyudi Wahyudi]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kayu Tropis Vol 5, No 2 (2007): Jurnal Ilmu dan Teknologi Kayu Tropis ]]>
Publisher : <![CDATA[Masyarakat Peneliti Kayu Indonesia ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (182.469 KB)
|
DOI: 10.51850/jitkt.v5i2.258
<![CDATA[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.]]>
