Skip to Main Content
The role of chemical transport in the brown-rot decay resistance of modified woodAuthor(s): Samuel Zelinka; R. Ringman; A. Pilgard; E. E. Thybring; Joseph Jakes; K. Richter
Source: International Wood Products Journal
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
View PDF (205.0 KB)
DescriptionChemical modification of wood increases decay resistance but the exact mechanisms remain poorly understood. Recently, Ringman and coauthors examined established theories addressing why modified wood has increased decay resistance and concluded that the most probable cause of inhibition and/or delay of initiation of brown-rot decay is lowering the equilibrium moisture content. In another recent study, Jakes and coauthors examined moisture-induced wood damage mechanisms, including decay and fastener corrosion, and observed that these mechanisms require chemical transport through wood cell walls. They proposed that chemical transport within wood cell walls is controlled by a moisture-induced glass transition in interconnected networks of hemicelluloses and amorphous cellulose. This paper shows how these models jointly suggest mechanisms by which wood modifications can inhibit brown-rot. Alternative mechanisms are also discussed. These models can be used to understand and further improve the performance of wood modification systems.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationZelinka, Samuel L.; Ringman, Rebecka; Pilgard, Annica; Thybring, Emil Engelund; Jakes, Joseph E.; Richter, Klaus. 2016. The role of chemical transport in the brown-rot decay resistance of modified wood. International Wood Products Journal. 7(2): 66-70.
KeywordsWood modification, Brown-rot decay, Diffusion, Chemical transport, Percolation theory, Glass transition temperature
- The Role of Chemical Transport in the Decay Resistance of Modified Wood. In: M
- Acetylation increases relative humidity threshold for ion transport in wood cell walls – a means to understanding decay resistance
- Chemical modification : a non-toxic approach to wood preservation
XML: View XML