Nanotech 2014 Vol. 1
Nanotech 2014 Vol. 1
Nanotechnology 2014: Graphene, CNTs, Particles, Films & Composites

Composite Materials Chapter 5

Effect of Layer Multiplying Extrusion on the Morphology and Properties of PS/CNT Nanocomposites

Authors: R. Jian, C. Barry, J. Mead

Affilation: University of Massachusetts Lowell, United States

Pages: 396 - 399

Keywords: carbon nanotubes, extrusion

Abstract:
Multilayer coextrusion has been used to produce extruded films having up to several thousand alternating layers with individual layer thicknesses ranging from several micrometers to only a few nanometers. In this work, the multilayer coextrusion process was used to orient carbon nanotubes in a polymer matrix. After 5 wt. % multiwall carbon nanotubes (MWCNTs) were melt mixed with polystyrene, polymer nanocomposites with three to over 4000 layers were extruded using a multilayer coextrusion process. The effects of the number of film layers on morphology evolution – i.e., MWCNT orientation and dispersion - were studied using transmission electron microscopy and polarized raman spectroscopy. Changes in the mechanical and electrical properties with increasing film layers were correlated with the morphological changes


ISBN: 978-1-4822-5826-4
Pages: 552
Hardcopy: $209.95