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Dependences of moisture diffusion coefficients of wood and wooden panels on moisture content and wood properties



Dependences of moisture diffusion coefficients of wood and wooden panels on moisture content and wood properties



Paperi ja Puu 66(12): 740-745



Moisture diffusion coefficients (D) were determined in the three directions of birch, pine and spruce wood and in the directions of the edge and the plane of birch and spruce plywood, particleboard and MDF. Mathematical models were used to study the effects on D of m.c., wood density, heartwood content, latewood content, and distance between growth rings. Wood density had the greatest effect, an increase leading to a decrease in D. Max. value of D was obtained when m.c. was 0.2%.

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