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Full-Text Articles in Forest Sciences
Tb152: The Effect Of Juvenile Wood On The Properties Of Aspen Flakeboard, Kenneth D. Roos, James E. Shottafer, Robert K. Shepard
Tb152: The Effect Of Juvenile Wood On The Properties Of Aspen Flakeboard, Kenneth D. Roos, James E. Shottafer, Robert K. Shepard
Technical Bulletins
While the effects of juvenile wood tissue on solid wood products and paper have been known for some time, little information is available regarding its influence on structural flakeboard. Juvenile and mature wood tissue were identified b y their physical and mechanical properties in quaking aspen (Populus tremuloides Michx.). Sections of juvenile and mature wood were separated from 1-foot bolts of aspen. These sections were used to prepare three distinct types of structural flakeboard : juvenile wood-based, mature wood-based, and one formed from an equal mixture of the two. The panels were tested for selected mechanical and physical properties. The …
Tb74: Eastern Spruce Flakeboard Resin Distribution And Decorative Panel Evaluation, Robert A. Kelly, Norman P. Kutscha, Craig E. Shuler
Tb74: Eastern Spruce Flakeboard Resin Distribution And Decorative Panel Evaluation, Robert A. Kelly, Norman P. Kutscha, Craig E. Shuler
Technical Bulletins
A standard urea-formaldehyde liquid adhesive was used in the manufacture of eastern spruce flakeboard panels. The resin application system, resin viscosity, furnish moisture content, and application period were all conducive to the formation of a fine resin spray. The average resin droplet diameter was approximately 20 microns, while the average resin are a coverage, over the entire wood furnish, was 8.05%. Resin distribution in the microscopically observed panel specimens appeared in the form of “spot-welds” and intermittent glue lines. The use of various histological and commercial stains was effective in producing decorative panels.