Effect of Flake Geometry and Resin Content on Bending Strength of Oak Flake Board

The objective of this study was to determine the effects of particle geometry and resin content on the bending strength of oak flake board. Flake lengths of 0.5, 1, 2, and 4 inches and flake thicknesses of 0.006, 0.012, 0.050 inches were used. The resin spreads were 3.27, 6.54, 13.07 grams of resin solids per square meter. The results showed that longer flakes gave higher strength values up to a length of 4 inches. The resin content, though easily varied, is not as effective as flake size for controlling the strength in bending. Flake thickness may be considered very important in determining the strength in bending. Strength is fairly well related to the length-to thickness ratio of flakes and shows a continuous increase up to a ratio of at least 300.

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