Figure 4.
SEM cross section images of the neat PAM film (a) and PAM/CNC composites with different CNC content (wt.%): 4.7 (b), 10.3 (c), 19.7 (d), 29.8 (e), 40.1 (f), 54.5 (g), and 70.6 (h). The scale bar is 500 nm.
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