Thickness swelling (TS) and water absorption (WABS) of the
non-resin, non-wood fibreboards showed high water swelling
levels (Figs. 5 and 6). Apart from the differing chemical composition
of wood and non-wood fibres, the proportions of
cellulose, hemicellulose and lignin components are different.
In most cases the amounts of cellulose and lignin are higher
in wood-based materials while the hemicellulose component
is lower.