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Characterization of polyamide 6/carbon nanotube composites prepared by melt mixing-effect of matrix molecular weight and structure

Faghihi, M ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compositesb.2015.03.049
  3. Publisher: Elsevier Ltd , 2015
  4. Abstract:
  5. Effects of molecular weight and structure of polyamide 6 (PA6) on morphology and properties of PA6/MWCNT prepared by melt mixing were investigated. Microscopic analysis showed fine dispersion of MWCNT within low viscosity PA6s due to domination of melt infiltration into MWCNT agglomerate at low viscosity matrices with linear structure. Rheological data indicated good interfacial interaction with no percolation of MWCNT up to 2 wt% loading. DSC thermograms showed nucleating role of MWCNT on crystallization of PA6s with marginal effect on crystallinity. Experimental data supported with micromechanical model showed limited improvement on mechanical properties, but it was closely consistent with degree of dispersion of MWCNT
  6. Keywords:
  7. A. Nano-structures ; B. Mechanical properties ; B. Microstructures ; B. Rheological properties ; Dispersions ; Matrix algebra ; Mechanical properties ; Mixing ; Molecular weight ; Nanostructures ; Solvents ; Structural properties ; Viscosity ; Yarn ; Degree of dispersion ; Interfacial interaction ; Linear structures ; Melt infiltration ; Micro-mechanical modeling ; Microscopic analysis ; Nanotube composites ; Rheological property ; Multiwalled carbon nanotubes (MWCN)
  8. Source: Composites Part B: Engineering ; Volume 78 , 2015 , Pages 50-64 ; 13598368 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1359836815001687