MWCNTs/Cellulose Hydrogels Prepared from NaOH/Urea Aqueous Solution with Improved Mechanical Properties

Figure 1

The appearance of cellulose/MWCNTs hydrogels with different weight ratios: (a) Gel 1 (20 : 1), (b) Gel 2 (10 : 1), (c) Gel 3 (4 : 1), (d) Gel 4 (3 : 1), and (e) Gel 5 (2 : 1).

(a)

(b)

(c)

(d)

(e)