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. 2022 Apr 5;14(7):1477. doi: 10.3390/polym14071477

Figure 2.

Figure 2

Overview of cellulose micro- and nanomaterials commonly used as fillers to prepare composite materials. Electron micrographs of (a) sisal fiber (scanning electron microscopy (SEM), reproduced from [62] under the terms of the Creative Commons CC BY license), (b) tunicate whiskers (transmission electron microscopy (TEM), reproduced from [63] with permission of American Chemical Society), (c) sugar beet CMF (TEM, reproduced from [64] with permission of Elsevier), (d) CMC, commercial (SEM, reproduced from [65] with permission of John Wiley & Sons, Inc), (e) wood CNF (TEM, reproduced from [66] with permission of American Chemical Society), (f) CNC from ramie fibers (TEM, reproduced from [67] under the terms of the Creative Commons CC BY license).