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. 2019 Apr 8;12(7):1145. doi: 10.3390/ma12071145

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© 2019 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 (http://creativecommons.org/licenses/by/4.0/).

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Scanning electron microscope (SEM) micrographs of the fracture surface of tensile tested samples at 500× magnification. (a) CPLA, (b) CN20, (c) CN30 and (d) CN40.

Scanning electron microscope (SEM) micrographs of the fracture surface of tensile tested samples at 500× magnification. (a) CPLA, (b) CN20, (c) CN30 and (d) CN40.