Tampilan Petugas: PENGARUH EKSTRAKSI DAN PENGERINGAN TERHADAP DERAJAT PEMBAHASAN PERMUKAAN DAN KETEGUHAN REKATAN KAYU (The effect of extraction and oven-drying on wood surface wettability and bond strength)

PENGARUH EKSTRAKSI DAN PENGERINGAN TERHADAP DERAJAT PEMBAHASAN PERMUKAAN DAN KETEGUHAN REKATAN KAYU (The effect of extraction and oven-drying on wood surface wettability and bond strength)

Main Author:	Balfas, Jamal
Other Authors:	Pusat Litbang Hasil Hutan
Format:	Article info application/pdf eJournal
Bahasa:	ind
Terbitan:	Pusat Penelitian dan Pengembangan Hasil Hutan , 2017
Online Access:	http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3631 http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3631/3140

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fullrecord	<?xml version="1.0"?> <dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="id-ID">PENGARUH EKSTRAKSI DAN PENGERINGAN TERHADAP DERAJAT PEMBAHASAN PERMUKAAN DAN KETEGUHAN REKATAN KAYU (The effect of extraction and oven-drying on wood surface wettability and bond strength)</title><creator>Balfas, Jamal</creator><subject lang="id-ID"/><description lang="id-ID">Wood blocks measuring 10 min (radial) x 25 mm (tongitudinal) of regrowth karri (eucalyptus diversicolor F. musfi.) and jarrah (E.marginata ex sm.) were used in this study. The extraction treatment was preceded by a preliminary experiment to determine the effect of extraction on percentage weight loss of wood blocks and extractive yield. Five extraction times were used, 8,16,32,64 and 128 hours, further experiments were undertaken to investigate the effects of oven-drying hot-water extraction an a combination of the two treatments on wattability and shear strength of karri and jarrah laminates, panels were made by gluing pairs of laminates with resorcinol formaldehyde at a spread rate  of 1.2 mg/mm2. The preliminary experiment showed that water soluble extractives removed from wood blocks increased with increasing time of extraction. The amount of extractives removed was approximately three times greater is karri than in jarrah. Extending the extraction period beyond 32 hours resulted in collapse, bowing and checking of the wood blocks during drying. Results from the initial experiments revealed that either oven drying, extraction or the combination of the two treatments have all significantly (p<0.01) reduced wettability and shear strength of the wood laminates. There was no significant relationship between wettability and shear strength for both regrowth eucalyptus.</description><publisher lang="id-ID">Pusat Penelitian dan Pengembangan Hasil Hutan</publisher><contributor lang="id-ID">Pusat Litbang Hasil Hutan</contributor><date>2017-08-23</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Other:</type><type>Other:</type><type>File:application/pdf</type><identifier>http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3631</identifier><identifier>10.20886/jphh.1993.11.6.222-227</identifier><source lang="en-US">Journal of Forest Products Research; Vol 11, No 6 (1993): Jurnal Penelitian Hasil Hutan; 222-227</source><source lang="id-ID">Jurnal Penelitian Hasil Hutan; Vol 11, No 6 (1993): Jurnal Penelitian Hasil Hutan; 222-227</source><source>2442-8957</source><source>0216-4329</source><language>ind</language><relation>http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3631/3140</relation><rights lang="en-US">Copyright (c) 2017 Jurnal Penelitian Hasil Hutan</rights><rights lang="en-US">http://creativecommons.org/licenses/by-nc-sa/4.0</rights><recordID>--ejournal.forda-mof.org-ejournal-litbang-index.php-index-oai:article-3631</recordID></dc>
language	ind
format	Journal:Article Journal Other:info:eu-repo/semantics/publishedVersion Other Other: File:application/pdf File Journal:eJournal
author	Balfas, Jamal
author2	Pusat Litbang Hasil Hutan
title	PENGARUH EKSTRAKSI DAN PENGERINGAN TERHADAP DERAJAT PEMBAHASAN PERMUKAAN DAN KETEGUHAN REKATAN KAYU (The effect of extraction and oven-drying on wood surface wettability and bond strength)
publisher	Pusat Penelitian dan Pengembangan Hasil Hutan
publishDate	2017
url	http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3631 http://ejournal.forda-mof.org/ejournal-litbang/index.php/JPHH/article/view/3631/3140
contents	Wood blocks measuring 10 min (radial) x 25 mm (tongitudinal) of regrowth karri (eucalyptus diversicolor F. musfi.) and jarrah (E.marginata ex sm.) were used in this study. The extraction treatment was preceded by a preliminary experiment to determine the effect of extraction on percentage weight loss of wood blocks and extractive yield. Five extraction times were used, 8,16,32,64 and 128 hours, further experiments were undertaken to investigate the effects of oven-drying hot-water extraction an a combination of the two treatments on wattability and shear strength of karri and jarrah laminates, panels were made by gluing pairs of laminates with resorcinol formaldehyde at a spread rate of 1.2 mg/mm2. The preliminary experiment showed that water soluble extractives removed from wood blocks increased with increasing time of extraction. The amount of extractives removed was approximately three times greater is karri than in jarrah. Extending the extraction period beyond 32 hours resulted in collapse, bowing and checking of the wood blocks during drying. Results from the initial experiments revealed that either oven drying, extraction or the combination of the two treatments have all significantly (p<0.01) reduced wettability and shear strength of the wood laminates. There was no significant relationship between wettability and shear strength for both regrowth eucalyptus.
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library	Perpustakaan Kementerian Lingkungan Hidup dan Kehutanan RI
library_id	121
collection	Indonesian Journal of Forestry Research
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province	JAWA BARAT
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PENGARUH EKSTRAKSI DAN PENGERINGAN TERHADAP DERAJAT PEMBAHASAN PERMUKAAN DAN KETEGUHAN REKATAN KAYU (The effect of extraction and oven-drying on wood surface wettability and bond strength)

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