2.5.6. Viscosity

The viscosity of the prepared ChNF suspension was investigated by using a viscometer (LV DV2T, Brookfield viscometer, USA). The spindle LV–04 (64), speed 0.1 rpm, T = 23.5 ◦C and time recorded from 1 to 5 min were chosen for the test condition, and 0.8 wt% of ChNF suspensions were provided. The ChNF yield was investigated by using centrifugation at 7000 rpm for 1 h.
