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. 2017 Sep 6;10(9):1044. doi: 10.3390/ma10091044

Figure 1.

Figure 1

Scanning electron micrographs of recycled polyethylene terephthalate fibers melted at 300 °C at different rotation speeds (A) 6000 rpm; (B) 8000 rpm; (C) 10,000 rpm; (D) 12,000 rpm. Scale bar denotes 100 µm.