Table of Contents
Journal of Composites
Volume 2013 (2013), Article ID 462914, 11 pages
http://dx.doi.org/10.1155/2013/462914
Research Article

Influence of SiC/Si3N4 Hybrid Nanoparticles on Polymer Tensile Properties

Department of Materials Science and Engineering, Tuskegee University, Tuskegee, AL 36088, USA

Received 3 February 2013; Accepted 6 September 2013

Academic Editor: Zhiping Luo

Copyright © 2013 Vijaya K. Rangari et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nanostructured silicon carbide (SiC)/silicon nitride (Si3N4) hybrid nanoparticles exhibit a high-potential for reinforcement of polymers. In the present investigation, silicon carbide ( -SiC) nanoparticles (~30 nm) were sonochemically coated on acicular silicon nitride (~100 nm   nm) particles to increase the thermal and mechanical properties of Nylon-6 nanocomposite fibers. To produce Nylon-6/(SiC/Si3N4) nanocomposite fibers, we have followed a two-step process. In the first step, SiC nanoparticles were coated on Si3N4 nanorods using a sonochemical method and Cetyltrimethylammonium Bromide surfactant. In the second step, the SiC coated Si3N4 hybrid nanoparticles were blended with Nylon-6 polymer and extruded in the form of nanocomposite polymer fibers. The nanocomposite fibers were uniformly stretched and stabilized using a two-set Godet roll machine. The diameters of the extruded neat Nylon-6 and SiC/Si3N4/Nylon-6 nanocomposite fibers were measured using a scanning electron microscope and then tested for their tensile and thermal properties. These results were compared with the neat Nylon-6 polymer fibers. These results clearly indicate that the as-prepared nanocomposite polymer fibers are much higher in tensile strength (242%) and Young’s modulus (716%) as compared to the neat polymer fibers.