Modeling and characterization of the electrical conductivity of carbon nanotube-based polymer composites

Polymer ◽  
2011 ◽  
Vol 52 (17) ◽  
pp. 3852-3856 ◽  
Author(s):  
Tomo Takeda ◽  
Yasuhide Shindo ◽  
Yu Kuronuma ◽  
Fumio Narita
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Polymer Composites

G030081 Electrical Conductivity of Carbon Nanotube-based Polymer Composites

2011 ◽  
Vol 2011 (0) ◽  
pp. _G030081-1-_G030081-3
Author(s):  
Yu KURONUMA ◽  
Tomo TAKEDA ◽  
Yasuhide SHINDO ◽  
Fumio NARITA
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Polymer Composites

Piezoresistance Characterization of Poly(Dimethyl-Siloxane)-Multiwall Carbon Nanotube Composites

2010 ◽  
Author(s):  
Reza Rizvi ◽  
Sara Makaremi ◽  
Steven Botelho ◽  
Elaine Biddiss ◽  
Hani Naguib
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Multiwall Carbon Nanotube ◽  
Dimethyl Siloxane ◽  
Conducting Filler ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Electronic Textile ◽  
Multiwall Carbon

This study examines the piezoresistive behavior of polymer-conducting filler composites. Piezoresistive composites of Poly(dimethyl-siloxane)-Multiwall Carbon Nanotube (PDMS-MWNT) were prepared using a direct mixing approach. The dispersion and the electrical conductivity of the composites were characterized at various MWNT compositions. The piezoresistive behavior under compression was measured using an Instron Universal Tester/Digital Sourcemeter combination. Negative piezoresistive behavior was observed signifying a reducing mean inter-particulate distance in the composites. Moreover, the sensitivities increased at two compositional values of 3 and 5 wt% MWNT in PDMS, which was associated with the state of MWNT dispersion observed. Tensile piezoresistive behavior of the PDMS-MWNT adhered on a fabric substrate was also characterized. Positive piezoresistive values, indicating increasing inter-particulate distance, were observed. Significant challenges in the implementation of PDMS-MWNT as sensory materials in electronic-textile applications were observed as a result of this study and have been discussed.

Characterization of carbon nanotube/nanofiber-reinforced polymer composites using an instrumented indentation technique

2007 ◽  
Vol 38 (1) ◽  
pp. 58-65 ◽  
Author(s):  
Hyukjae Lee ◽  
Shankar Mall ◽  
Peng He ◽  
Donglu Shi ◽  
Suhasini Narasimhadevara ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Instrumented Indentation ◽  
Indentation Technique ◽  
Reinforced Polymer

Preparation and characterization of polyvinyl alcohol/carbon nanotube (PVA/CNT) conductive nanofibers

2012 ◽  
Vol 32 (6-7) ◽  
pp. 407-413 ◽  
Author(s):  
Ozcan Koysuren
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Polyvinyl Alcohol ◽  
Specific Capacitance ◽  
Electrode Surface ◽  
Electrospinning Process ◽  
Morphology Analysis ◽  
Highly Porous

Abstract The aim of this study was to prepare polyvinyl alcohol/carbon nanotube (PVA/CNT) conductive nanofibers by the electrospinning process. Prior to composite preparation, carbon nanotubes are dispersed homogeneously in N-methyl-2-pyrrolidone (NMP) and mixed with a PVA solution. A series of PVA/CNT films and nanofibers with various CNT compositions are prepared. Electrical conductivity and specific capacitance of spin-coated PVA/CNT films and electrospun PVA/CNT fibers increase with an increase in CNT content. Electrospun PVA/CNT nanofibers with a larger electrode surface result in a higher specific capacitance when compared with spin-coated PVA/CNT films. According to the morphology analysis, homogeneous and highly porous PVA/CNT mats containing 50–300 nm diameter nanofibers are obtained by the electrospinning process.

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