Figure 3.
SEM micrographs of neat TPU and CPC materials: (a) Neat polyurethane; (b) 0.05 µm; (c) 0.2 µm; (d) 0.5 nm; (e) 1 µm; (f) 5 µm; (g) 10 µm;(h) 15 µm; (i) 20 µm.
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