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. 2019 Sep 10;12(18):2923. doi: 10.3390/ma12182923

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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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SEM micrographs of films: a, c, e, g, i, k, m (SAF, 10% WEF, 15% WEF, 20% WEF, 10% EEF, 15% EEF and 20% EEF, magnification: 50×) and b, d, f, h, j, l, n (SAF, 10% WEF, 15% WEF, 20% WEF, 10% EEF, 15% EEF and 20% EEF, magnification: 8000×).

SEM micrographs of films: a, c, e, g, i, k, m (SAF, 10% WEF, 15% WEF, 20% WEF, 10% EEF, 15% EEF and 20% EEF, magnification: 50×) and b, d, f, h, j, l, n (SAF, 10% WEF, 15% WEF, 20% WEF, 10% EEF, 15% EEF and 20% EEF, magnification: 8000×).