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. 2019 Feb 12;9(2):250. doi: 10.3390/nano9020250

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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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The thermomechanical properties of the nanocomposite NFs: (a) The thermogravimetric analysis (TGA) graphs imply an increase in the thermal stability of the NFs by the inclusion of TiO₂ NPs but with a less effect for the UV-irradiated NFs. (b) The glass transition temperature rises for the nanocomposite NFs versus their neat counterpart. The increment in T_g is less notable for the UV-irradiated NFs. (c) The dynamic thermomechanical (DMTA) analysis witnesses the enhancement of storage modulus for the nanocomposite NFs, as far as they are not UV-irradiated. (d) The tensile test results imply higher mechanical properties, represented by elastic modulus and tensile strength and, on the other hand, the brittleness of the nanocomposite NFs. UV-irradiation, again, has a slightly detrimental effect on such properties.