Table 3: Viscosity of the polymer solutions.

Composition of
polymer solution
Polymer
concentration, %
Fibre
concentration, %
Viscosity,
mPa·s·10−3

PVA800.46
PVA/CNF-F1810.69
PVA/CNF-F2821.07
PVA/CNF-S1810.86
PVA/CF-S2821.8