Enhanced Electrical Conductivity in Extruded Single-Wall Carbon Nanotube Wires from Modified Coagulation Parameters and Mechanical Processing

2015 ◽  
Vol 7 (49) ◽  
pp. 27299-27305 ◽  
Author(s):  
Andrew R. Bucossi ◽  
Cory D. Cress ◽  
Christopher M. Schauerman ◽  
Jamie E. Rossi ◽  
Ivan Puchades ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Mechanical Processing ◽  
Single Wall Carbon Nanotube ◽  
Coagulation Parameters ◽  
Single Wall Carbon

scholarly journals Polymer-Single Wall Carbon Nanotube Composites for Potential Spacecraft Applications

2001 ◽  
Vol 706 ◽  
Author(s):  
Cheol Park ◽  
Zoubeida Ounaies ◽  
Kent A. Watson ◽  
Kristin Pawlowski ◽  
Sharon E. Lowther ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Composite Films ◽  
Polymeric Materials ◽  
Polymer Nanocomposite ◽  
Weight Percent ◽  
Nanocomposite Films ◽  
Mechanical And Thermal Properties ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon

AbstractPolymer-single wall carbon nanotube (SWNT) composite films were prepared and characterized as part of an effort to develop polymeric materials with improved combinations of properties for potential use on future spacecraft. Next generation spacecraft will require ultra-lightweight materials that possess specific and unique combinations of properties such as radiation and atomic oxygen resistance, low solar absorptivity, high thermal emissitivity, electrical conductivity, tear resistance, ability to be folded and seamed, and good mechanical properties. The objective of this work is to incorporate sufficient electrical conductivity into space durable polyimides to mitigate static charge build-up. The challenge is to obtain this level of conductivity (10-8 S/cm) without degrading other properties of importance, particularly optical transparency. Several different approaches were attempted to fully disperse the SWNTs into the polymer matrix. These included high shear mixing, sonication, and synthesizing the polymers in the presence of pre-dispersed SWNTs. Acceptable levels of conductivity were obtained at loading levels less than one tenth weight percent SWNT without significantly sacrificing optical properties. Characterization of the nanocomposite films and the effect of SWNT concentration and dispersion on the conductivity, solar absorptivity, thermal emissivity, mechanical and thermal properties were discussed. Fibers and non-woven porous mats of SWNT reinforced polymer nanocomposite were produced using electrospinning.

Single Wall Carbon Nanotube/Polyethylene Nanocomposites: Thermal and Electrical Conductivity

2007 ◽  
Vol 40 (7) ◽  
pp. 2417-2421 ◽  
Author(s):  
Reto Haggenmueller ◽  
Csaba Guthy ◽  
Jennifer R. Lukes ◽  
John E. Fischer ◽  
Karen I. Winey
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon

scholarly journals Metal–semiconductor transition like behavior of naphthalene-doped single wall carbon nanotube bundles

2014 ◽  
Vol 173 ◽  
pp. 145-156 ◽  
Author(s):  
Fitri Khoerunnisa ◽  
Aaron Morelos-Gomez ◽  
Hideki Tanaka ◽  
Toshihiko Fujimori ◽  
Daiki Minami ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Metallic State ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Nanotube Bundles ◽  
Superlattice Structure ◽  
Librational Motion ◽  
A Charge ◽  
Adsorption Treatment

Naphthalene (N) or naphthalene-derivative (ND) adsorption-treatment evidently varies the electrical conductivity of single wall carbon nanotube (SWCNT) bundles over a wide temperature range due to a charge–transfer interaction. The adsorption treatment of SWCNTs with dinitronaphthalene molecules enhances the electrical conductivity of the SWCNT bundles by 50 times. The temperature dependence of the electrical conductivity of N- or ND-adsorbed SWCNT bundles having a superlattice structure suggests metal–semiconductor transition like behavior near 260 K. The ND-adsorbed SWCNT gives a maximum in the logarithm of electrical conductivity vs. T−1 plot, which may occur after the change to a metallic state and be associated with a partial unravelling of the SWCNT bundle due to an evoked librational motion of the moieties of ND with elevation of the temperature.

Surface electrical conductivity in ultrathin single-wall carbon nanotube/polymer nanocomposite films

2006 ◽  
Vol 88 (16) ◽  
pp. 164101 ◽  
Author(s):  
Valery Bliznyuk ◽  
Srikanth Singamaneni ◽  
Ramesh Kattumenu ◽  
Massood Atashbar
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Polymer Nanocomposite ◽  
Nanocomposite Films ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Surface Electrical Conductivity

scholarly journals Electrical conductivity of single-wall carbon nanotube films in strong electric field

2013 ◽  
Vol 113 (18) ◽  
pp. 183719 ◽  
Author(s):  
D. Seliuta ◽  
L. Subačius ◽  
I. Kašalynas ◽  
M. Shuba ◽  
A. Paddubskaya ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Electric Field ◽  
Strong Electric Field ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Nanotube Films
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