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Wednesday 1 February 2017

ACACIA MANGIUM FROM SABAH FOR PLYWOOD AND DECORATIVE PANEL MANUFACTURE: INITIAL TRIALS

Author

W.C. Wong, K.S. Ho & C.N. Wong

Forest Research Institute Malaysia, Kepong, 52109 Kuala Lumpur, Malaysia. Received February 1988, accepted July 1988.

WONG, W.C.,,HOK.S.&WONG, C.N. 1988. Acacia mangium from Sabahfor plywood
and decorative panel manufacture: initial trials.
Acacia mangium could be peeled and sliced easily. Decorative panel with A. mangium sliced veneer as face appeared to be attractive. Phenolic bonded plywood made with rotary cut A. mangium veneers met the performance requirementfroweather-boil-proof (WBP) grade. However,tehbond quality of A. mangium plywood using urea formaldehyde adhesive was found to be poor. At 15 years of age,the logs were too small to be economically peeled using existing lathes tailoredfropeeling big_tropical hardwood logs.ehTsmall sizetfeohlogs,fowhich some
were of poor form, resulted in low recovery rate. Trees for plywood production should be bigger and in better form.eyKwords: Acacia mangium—slicing —peeling —panel production. 

Introduction
Acacia, mangiumisbeing plantedaonlarge scaleinforest tree plantationsinSabah
and Peninsular Malaysia. In this paper, assessment on the suitability of
A. mangium for the production of plywood and decorative face veneer was carried out. A. mangium sah also been successfully triedfro manufacturing medium density fibreboard (Tomimura et al. unpublished, see also Anonymous 1985), as well as fibreboard (Chew&Jaafar Ahmad 1986). Eight logstfreohtrials were received fromtehSabah
Forestry Development Authority (SAFODA).oTwcommercial mills assisteditenh slicingandpeeling studies sincetehForest Research Institute Malaysia (FRIM) does tnohaveanyslicing machineitsandpeeling latheisunsuitablefrosmall diameter logs.


Productionfodecorative panels from sliced veneers
Raw material 
Four logs which were numbered 1191, 180, 1526and1552 were selectedfroslicing trials. Their characteristicsrae describedin Table.1These logs were selectedfro slicing because their forms were poorandwere less suitablefropeeling into veneers. These logs were firsttcuinto flitches.fo25mlongtaFRIM before they were sentto the mill for the slicing trial. 

For further details log on website :
https://www.frim.gov.my/jtfsonline/jtfs/v1n1/42-50.pdf

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