Evolution of phase morphology and ‘network-like’ structure of multiwall carbon nanotubes in binary polymer blends during melt-mixing

2014 ◽  
Vol 55 (2) ◽  
pp. 429-442 ◽  
Author(s):  
Amrita V. Poyekar ◽  
Arup R. Bhattacharyya ◽  
Ajay S. Panwar ◽  
George P. Simon
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Blends ◽  
Multiwall Carbon Nanotubes ◽  
Phase Morphology ◽  
Melt Mixing ◽  
Binary Polymer ◽  
Multiwall Carbon

Tuning the dispersion of multiwall carbon nanotubes in co-continuous polymer blends: a generic approach

2008 ◽  
Vol 19 (33) ◽  
pp. 335704 ◽  
Author(s):  
Suryasarathi Bose ◽  
Arup R Bhattacharyya ◽  
Rupesh A Khare ◽  
Ajit R Kulkarni ◽  
T Umasankar Patro ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Blends ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

Scratch and Wear Resistance of Polyamide 6 Reinforced with Multiwall Carbon Nanotubes

2008 ◽  
Vol 8 (6) ◽  
pp. 3176-3183 ◽  
Author(s):  
Luis F. Giraldo ◽  
Witold Brostow ◽  
Eric Devaux ◽  
Betty L. López ◽  
León D. Pérez
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Sliding Wear ◽  
Multiwall Carbon Nanotubes ◽  
Young Modulus ◽  
Tensile Tests ◽  
Polyamide 6 ◽  
Melt Mixing ◽  
Air Atmosphere ◽  
Multiwall Carbon

While carbon nanotubes have been used for a variety of purposes, it was not known whether they can improve tribological properties of polymers. Polyamide 6 (PA6) has been reinforced with 0.2, 0.5 and 1.0 wt% of multiwall carbon nanotubes (MWCNTs) by melt mixing process and characterized by scanning electron microscopy (SEM), transmission electron microscopy, thermogravimetric analysis (TGA), scratching, sliding wear and tensile testing. TGA results for the air atmosphere show that MWCNTs shift the onset of thermal degradation to higher temperatures. Sliding wear tests show that the penetration depth decreases as the concentration of carbon nanotubes increases. However, the viscoelastic healing is hampered by the MWCNTs presence and the residual depths increase at the same time. Narrower scratch groove widths are seen in SEM for composites with MWCNTs, and scratch hardness increases. Tensile tests show an increase of 27% in the Young modulus value upon addition of 1.0% of MWCNTs. The stress at yield is also higher for the nanocomposites.

Electrical Conductivity in Polymer Blends∕ Multiwall Carbon Nanotubes

2008 ◽  
Author(s):  
Ajit R. Kulkarni ◽  
Suryasarathi Bose ◽  
Arup R. Bhattacharyya ◽  
Shyamalendu M. Bose ◽  
S. N. Behera ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Polymer Blends ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon
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