Abstract
Medium density fiberboard (MDF) panels were made with aspen fiber and 0-95% chicken feather fiber (CFF) in 2.5%, 5%, or 25% increments, using 5% phenol formaldehyde resin as the adhesive. Panels were tested for mechanical and physical properties as well as decay. The addition of CFF decreased strength and stiffness of MDF-CFF composites compared with that of all-wood control panels. However, MDF-CFF panels showed a marked improvement in resistance to water-soak absorption, which provided limited protection against decay fungi. This benefit was probably related to the hydrophobic keratin in the CFF. Further research is focused on the thresholds of CFF required to decrease thickness swelling and increase water resistance.
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