Todd F. Shupe, Chung Y. Hse, Elvin T. Choong, Leslie H. Groom
Effect of Silvicultural Practice and Wood Type on Loblolly Pine Particleboard and Medium Density Fiberboard Properties
Summary
The objective of this study was to determine the effect of five different silvicultural strategies and wood
type on mechanical and physical properties of loblolly pine (Pinus taeda L.) particleboard and
fiberboard. The furnish was prepared in an unconventional manner from innerwood and outerwood
veneer for each stand. Modulus of rupture (MOR) differences between the stands were insignificant for
particleboard. Some significant modulus of elastisity (MOE) differences existed between the stands for
particleboard and fiberboard. Differences between the wood types were minimal for each stand.
Innerwood yielded higher mean MOR, MOE, and internal bond (IB) values than outerwood for most
of the stands. The differences between the stand and wood types for 2 and 24 h thickness swell and 2
and 24h water adsorption were very minimal. This research has shown that innerwood can produce
particleboard and fiberboard panels with very comparable mechanical and physical properties to
outerwood. The effect of the silvicultural strategy (i. e., stand) was minimal for most properties.
Holzforschung, Walter de Gruyter
Print ISSN: 0018-3830
Volume: 53, 03/1999
Pages: 215 - 222
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