The role of specific interaction and selective localization of multiwall carbon nanotubes on the electrical conductivity and phase morphology of multicomponent polymer blends

2011 ◽  
Vol 51 (10) ◽  
pp. 1987-2000 ◽  
Author(s):  
Suryasarathi Bose ◽  
Arup R. Bhattacharyya ◽  
Rupesh A. Khare ◽  
Srikanth S. Kamath ◽  
Ajit R. Kulkarni
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Polymer Blends ◽  
Specific Interaction ◽  
Multiwall Carbon Nanotubes ◽  
Phase Morphology ◽  
Selective Localization ◽  
Multicomponent Polymer ◽  
Multiwall Carbon

scholarly journals Incorporation of Functionalized Multiwall Carbon Nanotubes into a Polyurethane Matrix

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Martin Michálek ◽  
Michael Bredol
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Percolation Threshold ◽  
Aqueous Suspension ◽  
Sodium Dodecyl ◽  
Multiwall Carbon Nanotubes ◽  
Glass Substrates ◽  
Functionalized Mwcnts ◽  
Multiwall Carbon

Functionalized and raw multiwall carbon nanotubes (MWCNTs) were investigated colloid-chemically in order to study the role of polar versus nonpolar interaction with a polyurethane (PU) matrix. Both kinds of MWCNTs were dispersed by ultrasonication in the presence of a surfactant (sodium dodecyl sulphate) in aqueous solution. Functional groups on the nanotube surface were characterized by infrared spectroscopy and by theζ-potential in aqueous suspension. Such suspensions were added to waterborne PU dispersions, drop-cast on glass substrates and cured. The percolation threshold for electrical conductivity with polar (functionalized) MWCNTs was reached at 0.24 wt.%, whereas at concentrations as high as 2 wt.%, PU films with nonpolar MWCNTs stayed below the percolation threshold. With an addition of 0.4 wt.% polar MWCNTs, the electrical conductivity increased to >10−6 S/cm in the cured coating layer. These results are interpreted with respect to the chemical nature of the PU matrix.

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

Control of multiwall carbon nanotubes dispersion in polyamide6 matrix: An assessment through electrical conductivity

2006 ◽  
Vol 432 (4-6) ◽  
pp. 480-485 ◽  
Author(s):  
Pravin V. Kodgire ◽  
Arup R. Bhattacharyya ◽  
Suryasarathi Bose ◽  
Nitin Gupta ◽  
Ajit R. Kulkarni ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

Role of Multiwall Carbon Nanotubes (MWCNT) on Electrical Conductivity of Polymer Composite as Alternative Materials for Bipolar Plate Fuel Cell

2013 ◽  
Vol 737 ◽  
pp. 183-190 ◽  
Author(s):  
Anne Zulfia ◽  
Sutopo ◽  
Bangkit Indriyana ◽  
M.E. Albar ◽  
S. Rohman
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Multiwall Carbon Nanotubes ◽  
Material Design ◽  
Bipolar Plate ◽  
Multiwall Carbon Nanotube ◽  
Crucial Component ◽  
Carbon Nano Tube ◽  
Multiwall Carbon

Polypropylene can be improved an electrical conductivity by addition of carbon and multiwall carbon nanotube (MWCNT) as well as combination with copper (Cu) powder. Multiwall carbon nanotube used from 0.1 wt%, 0.5 wt% to 1 wt% while the addition of Cu powder into PP/C was various from 0.1 wt%, 0.2wt% to 0.5wt% respectively. This research focuses on material design of composite based on polymer and carbon to improve an electrical conductivity according to electrical conductivity requirement for bipolar plate. Bipolar plate is one of the components in PEMFC constituted a crucial component that collects and transfers electron from the anode to the cathode, therefore it should possess high electrical conductivity. The main discussion in this research is to analyze the role of multiwall carbon nano tube (MWCNT) and copper on electrical conductivity of polymer composites produced. Functional groups analysis using Fourier Transform Infrared Spectroscopy (FTIR) was also carried out to investigate whether carbon has been mixed perfectly within polypropylene. It is found that the effect of adding a small amount of MWCNT and Cu have improved their electrical conductivity of composites up to 15.62 S/cm.

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