Volume 4, Issue 2

Hygroscopicity and movement of medium density fibre board

Author

Mamatha B S*, Sujatha. D. and C.N. Pandey

Abstract

Dimensional stability of Medium Density Fiberboard (MDF) is a critical
factor in usage of products. Many problems in the use of wood based
products are caused by changes in moisture content due to hygroscopic
nature of material. Hence a study on hygroscopicity and movement of
commercially manufactured medium density fibre board was carried out. The
hygroscopic behaviour was determined by measuring the Equilibrium
Moisture Content (EMC) at two extreme conditions i.e., 96% to 35% relative
humidity and the movement values were measured for 6mm and 17mm
thickness samples. From this study it was observed that the Equilibrium
moisture content (EMC) for MDF is lower and comparable with reference to
hygroscopicity of Group C Indian timbers. The movement values for the
medium density fibre boards exposed between 96%RH and 35% RH were
found to be 0.28% in width, 4% in thickness.

DOI

https://doi.org/10.62226/ijarst20150210

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