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. 2022 Jan 16;14(2):340. doi: 10.3390/polym14020340

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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SEM images of the surface (a–c) and cleavage (d–f) of the PHBV/PCL/CNC composite films: PHBV/PCL(1:1)/CNC(PAM)–5 (a,d); PHBV/PCL(1:1)/CNC(PAM)−10 (b,e); PHBV/PCL(1:1)/CNC(PAM)–15 (c,f). The scale is 2 μm (a,b,d,e); 1 μm (c,f).

SEM images of the surface (a–c) and cleavage (d–f) of the PHBV/PCL/CNC composite films: PHBV/PCL(1:1)/CNC(PAM)–5 (a,d); PHBV/PCL(1:1)/CNC(PAM)−10 (b,e); PHBV/PCL(1:1)/CNC(PAM)–15 (c,f). The scale is 2 μm (a,b,d,e); 1 μm (c,f).