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

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PENGARUH PENAMBAHAN FENOL FORMALDEHIDA TERHADAP SIFAT HARDBOARD KAYU CAMPURAN BERDASARKAN PENGELOMPOKAN BERAT JENIS Rena M Siagian
Jurnal Penelitian Hasil Hutan Vol 4, No 2 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5055.001 KB) | DOI: 10.20886/jphh.1987.4.2.10-15

Abstract

This paper deals with an experiment on the effect  of phenol formaldehyde binder on the properties  of hardboard.  The boards were made of mixed wood species of five specific gravity groups  i.e.  < 0.30; 0.31-0.45; 0.46-0.60; 0.61-0.75 and >  0.75.Pulping employed  in the experiment  was the hot caustic soda,  and the sheets  were formed   by using the laboratory  wet felting  process.  The phenol formaldehyde blended at pulp  slurry and presipitated  by adding alum  to reach pH  ± 7.2. The amount  of phenol formaldehyde added during sheet formation  was made at 1, 1.5, and 2 percent  based on the oven dry pulp.The experimental  result indicated  that a quality panels  could be obtained  by adding 1. 5 percent  of phenol formaldehyde  binder. Increasing the phenol formaldehyde binder up to 2 percent  did not improved  the physico-mechanical  properties  of the board produced.   The experiment  also shows that better physico-mechanical  properties  of hardboard sheets  were obtained from 0.30 up to 0.60...0.75 specific gravity groups.  The panels made of wood with specific gravity more  than 0.75, appeared  to have inferior  quality.
PEMBUATAN PAPAN ISOLASI DARI CAMPURAN PULP LIMBAH PEMBALAKAN HUTAN DAN ARANG AKTIF DENGAN BAHAN PEREKAT KHITOSAN CANGKANG UDANG Han Roliadi; Rena M Siagian; Dian Anggraini Indrawan; Rosi Margareth Tampubolon
Jurnal Penelitian Hasil Hutan Vol 30, No 1 (2012): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.1.59-67

Abstract

Telah dilakukan percobaan pembuatan papan isolasi menggunakan bahan baku campuran limbah pembalakan kayu HTI (Hutan Tanaman Industri) jenisEucalyptus hybriddan arang aktif, dengan Limbah pembalakan dibuat menjadi serpih, lalu diolah menjadi pulp menggunakan proses semi- kimia soda panas terbuka pada kondisi: konsentrasi NaOH 8%, nilai banding bahan baku serpih dengan larutan pemasak 1 : 8 (b/v), dan suhu pemasakan maksimum 100OC yang dipertahankan selama 3 jam. Pembentukan papan isolasi menggunakan cara basah dari campuran pulp limbah pembalakan HTI dan arang aktif dengan komposisi (b/b) 100% + 0%, 97,5% + 2,5%, 95% + 5%, 92,5% + 7,5%, dan 90% + 10%. Sebelum dibentuk lembaran, pada campuran tersebut ditambahkan dua macam perekat (khitosan dan tapioka) secara terpisah masing-masing sebanyak 5%. Sifat fisis dan mekanis papan isolasi dengan perekat pati lebih baik dibandingkan dengan perekat khitosan. Semakin tinggi porsi campuran arang aktif pada pulp limbah pembalakan, cenderung menurunkan kerapatan dan sifat kekuatan (MOR), meningkatkan kadar air, tetapi memperbaiki kestabilan dimensi. Papan isolasi yang memenuhi persyaratan JIS adalah dengan perekat pati pada porsi campuran pulp limbah pembalakan-arang aktif 97,5% + 2,5%, dan papan isolasi dengan perekat khitosan tetapi dari pulp limbah pembalakan 100%.
PENGARUH PENAMBAHAN FENOL FORMALDEHIDA TERHADAP SIFAT HARDBOARD KAYU CAMPURAN BERDASARKAN PENGELOMPOKAN BERAT JENIS Rena M Siagian
Jurnal Penelitian Hasil Hutan Vol 4, No 2 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.2.10-15

Abstract

This paper deals with an experiment on the effect  of phenol formaldehyde binder on the properties  of hardboard.  The boards were made of mixed wood species of five specific gravity groups  i.e.  < 0.30; 0.31-0.45; 0.46-0.60; 0.61-0.75 and >  0.75.Pulping employed  in the experiment  was the hot caustic soda,  and the sheets  were formed   by using the laboratory  wet felting  process.  The phenol formaldehyde blended at pulp  slurry and presipitated  by adding alum  to reach pH  ± 7.2. The amount  of phenol formaldehyde added during sheet formation  was made at 1, 1.5, and 2 percent  based on the oven dry pulp.The experimental  result indicated  that a quality panels  could be obtained  by adding 1. 5 percent  of phenol formaldehyde  binder. Increasing the phenol formaldehyde binder up to 2 percent  did not improved  the physico-mechanical  properties  of the board produced.   The experiment  also shows that better physico-mechanical  properties  of hardboard sheets  were obtained from 0.30 up to 0.60...0.75 specific gravity groups.  The panels made of wood with specific gravity more  than 0.75, appeared  to have inferior  quality.
PEMBUATAN PAPAN ISOLASI DARI CAMPURAN PULP LIMBAH PEMBALAKAN HUTAN DAN ARANG AKTIF DENGAN BAHAN PEREKAT KHITOSAN CANGKANG UDANG Han Roliadi; Rena M Siagian; Dian Anggraini Indrawan; Rosi Margareth Tampubolon
Jurnal Penelitian Hasil Hutan Vol 30, No 1 (2012): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.1.59-67

Abstract

Telah dilakukan percobaan pembuatan papan isolasi menggunakan bahan baku campuran limbah pembalakan kayu HTI (Hutan Tanaman Industri) jenisEucalyptus hybriddan arang aktif, dengan Limbah pembalakan dibuat menjadi serpih, lalu diolah menjadi pulp menggunakan proses semi- kimia soda panas terbuka pada kondisi: konsentrasi NaOH 8%, nilai banding bahan baku serpih dengan larutan pemasak 1 : 8 (b/v), dan suhu pemasakan maksimum 100OC yang dipertahankan selama 3 jam. Pembentukan papan isolasi menggunakan cara basah dari campuran pulp limbah pembalakan HTI dan arang aktif dengan komposisi (b/b) 100% + 0%, 97,5% + 2,5%, 95% + 5%, 92,5% + 7,5%, dan 90% + 10%. Sebelum dibentuk lembaran, pada campuran tersebut ditambahkan dua macam perekat (khitosan dan tapioka) secara terpisah masing-masing sebanyak 5%. Sifat fisis dan mekanis papan isolasi dengan perekat pati lebih baik dibandingkan dengan perekat khitosan. Semakin tinggi porsi campuran arang aktif pada pulp limbah pembalakan, cenderung menurunkan kerapatan dan sifat kekuatan (MOR), meningkatkan kadar air, tetapi memperbaiki kestabilan dimensi. Papan isolasi yang memenuhi persyaratan JIS adalah dengan perekat pati pada porsi campuran pulp limbah pembalakan-arang aktif 97,5% + 2,5%, dan papan isolasi dengan perekat khitosan tetapi dari pulp limbah pembalakan 100%.
PEMBUATAN PAPAN ISOLASI DARI CAMPURAN PULP LIMBAH PEMBALAKAN HUTAN DAN ARANG AKTIF DENGAN BAHAN PEREKAT KHITOSAN CANGKANG UDANG Han Roliadi; Rena M Siagian; Dian Anggraini Indrawan; Rosi M. Tampubolon
Jurnal Penelitian Hasil Hutan Vol. 30 No. 1 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.1.59-67

Abstract

This study examined characteristics of insulation board manufactured from the mixture of wood astes from Eucalyptus bybrid plantation forest (PF) logging and activated charcoal, and the adhesive as used was chitosan derived from the shrimp exoskeleton. PF-logging's wood wastes were reduced in size to chips, then made into pulp using open bot soda chemical process at the condition being alkali (NaOH) concentration at 8%, wood to liquor ratio 1:8 (w/v), and maximum cooking temperature 100C held for 3 hours. Insulation-board mat was formed using the wet process from the miscture of PF logging's wood wastes and activated charcoal at the proportions (w/w) consecutively 100% +0%, 97,5% + 2,5%, 95% + 5%, 92,5% +7,5%, dan 90%+10%. Prior to mat forming, to the miscture were added 2 kinds of adhesives separately (i.e. chitosan and tapioca as the comparison) 5% each. Physical and mechanical properties of the resulting insulation board with tapioca were better than those with chitosan. The greater the portion of activated charcoal mixed to the PF-logging's wood wastes, the lower the density and the strength (MOR), the more increased the moisture content, but the more improved the dimensional stability. The insulation board which revealed the most promising prospects and could favorably meet the JIS specification was the one from the mixture proportion of PF-logging's wood wastes and activated charcoal at 97.5%+ 2.5%, uring tapioca adhesive, and the one from solely 100% PF-logging wastes (without activated charcoal) using chitosan.
Co-Authors Dian Anggraini Indrawan Dian Anggraini Indrawan Han Roliadi Han Roliadi Rosi M. Tampubolon Rosi Margareth Tampubolon