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. 2017 Jul 4;10(7):748. doi: 10.3390/ma10070748

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© 2017 by the author.

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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Mechanical properties of composite films. (A) Tensile strength; (B) tensile modulus; and (C) elongation at break demonstrating the superior tensile properties of PLA/GO@starch in comparison with PLA/starch; (D) Comparison of tensile strength for modified PLA/starch composites using the present method and various published covalent grafting techniques, including epoxidized itaconic acid (EIA)-g-starch, epoxidized cardanol (Epicard)-g-starch, combined use of starch and starch-g-PLA (5 and 10 wt%), starch-g-poly(ethylene glycol) (PEG), maleic anhydride (MA)-g-starch and starch-g-PLA. See references in [80] related to each grafting method; (E) SEM images of fracture surfaces after tensile failure suggesting strong interfacial bonding and even formation of numerous ligaments in PLA/GO@starch films [80].