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. 2017 Aug 31;9(9):404. doi: 10.3390/polym9090404

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© 2017 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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(a) Electrical resistivity as a function of CB content for POM/COPA/CB and POM/COPA/TPU/CB composites. The compositions of POM/COPA and POM/COPA/TPU blends were fixed at 70/30 and 65/30/5, respectively. (b–d) The FESEM images of the POM/COPA/TPU/CB composites with different CB contents: 1 phr (b), 3 phr (c), and 8 phr (d), and the TPU phase was etched by DMF.