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    Author(s): Joseph E. Jakes; Nayomi Plaza; Donald S. Stone; Christopher G. HuntSamuel V. GlassSamuel L. Zelinka
    Date: 2013
    Source: JOURNAL OF FOREST PRODUCTS & INDUSTRIES, Volume 2, Number 6, 2013; pp. 10-13.
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: Download Publication  (278.12 KB)

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    New Insight into Wood Damage Mechanisms


    The movement of chemicals through wood is necessary for decay and fastener corrosion to occur in forest products. However, the mechanism responsible for the onset of fastener corrosion and decay in wood is not known. The onset occurs before the formation of free water in wood cavities and aqueous chemical transport would be possible. Here, we propose that the onset mechanism is the hemicelluloses going through a moisture induced glass transition. As nm-scale regions of mechanically softened hemicelluloses in cell walls percolate, pathways for chemical transport are created. The ability of chemicals to move in cell walls enables fastener corrosion and decay to occur. This mechanism suggests that wood treatments preventing the glass transition of hemicelluloses will inhibit fastener corrosion and wood decay. The identification of this mechanism should accelerate the development of wood treatments to improve forest products durability.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Jakes, Joseph E.; Plaza, Nayomi; Stone, Donald S.; Hunt, Christopher G.; Glass, Samuel V.; Zelinka, Samuel L. 2013. Mechanism of Transport Through Wood Cell Wall Polymers. JOURNAL OF FOREST PRODUCTS & INDUSTRIES, Volume 2, Number 6, 2013; pp. 10-13.


    Durability, Fastener Corrosion, Ionic Conduction, Micromechanical Response, Sorption Hysteresis, Water

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