scholarly journals Carbon Nanotubes as Conductive Filler in Segregated Polymer Composites - Electrical Properties

10.5772/18878 ◽  
2011 ◽  
Author(s):  
Yevgen Mamunya
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Polymer Composites ◽  
Conductive Filler

Influence of Structural Defects on the Electrical Properties of Carbon Nanotubes and Their Polymer Composites

2016 ◽  
Vol 18 (11) ◽  
pp. 1897-1905 ◽  
Author(s):  
G. Domínguez-Rodríguez ◽  
A. Tapia ◽  
G. D. Seidel ◽  
F. Avilés
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Polymer Composites ◽  
Structural Defects

Reduced percolation threshold of multi-walled carbon nanotubes/polymer composites by filling aligned ferromagnetic particles

2019 ◽  
Vol 31 (2) ◽  
pp. 187-197
Author(s):  
Shuai Dong ◽  
Xuan Wu ◽  
Erhua Wang ◽  
Xiaojie Wang
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Resistivity ◽  
Electrical Properties ◽  
Percolation Threshold ◽  
Polymer Composites ◽  
Conductive Polymer ◽  
Iron Particles ◽  
Conductive Polymer Composites ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Conductive polymer composites, consisting of multi-walled carbon nanotubes and a small amount of carbonyl iron particles, are fabricated under an ordinary magnetic field, to form anisotropic microstructures. The alignment of carbonyl iron particles will change the structure of a multi-walled carbon nanotube network and consequently the electrical properties of conductive polymer composites. In this research, we focus on the effect of the anisotropic microstructures on the electrical properties of the composites, especially on the percolation threshold and electrical resistivity. Monte Carlo simulations for three-dimensional stick percolation systems are performed to predict the percolation threshold of the anisotropic conductive polymer composites in terms of orientation distribution of multi-walled carbon nanotubes. In addition, an eight-chain model is proposed to investigate the influence of the anisotropic distribution of multi-walled carbon nanotubes on the electrical resistivity of the composites. It is predicted that the percolation threshold could be reduced from 0.70 vol% for the isotropic composites to 0.49 vol% for the anisotropic composites. Meanwhile, the electrical resistivity of the anisotropic composites is about 10%–20% of that of the isotropic composites when the volume fraction of multi-walled carbon nanotubes is higher than the percolation threshold. The simulation results are compared with the experimental study results that show a very similar behavior although there are some deviations in the values.

Structural characterization and electrical properties of carbon nanotubes/epoxy polymer composites

2016 ◽  
Vol 134 (8) ◽  
Author(s):  
Sofia Boukheir ◽  
Adél Len ◽  
János Füzi ◽  
Viktor Kenderesi ◽  
Mohammed Essaid Achour ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Polymer Composites ◽  
Structural Characterization ◽  
Epoxy Polymer

Electrical Properties of Composites Based on Low-Pressure Polyethylene and Carbon-Containing Fillers

2021 ◽  
Vol 899 ◽  
pp. 720-725
Author(s):  
Muslim A. Mikitaev ◽  
V.A. Borisov ◽  
Ismel V. Musov ◽  
Azamat L. Slonov ◽  
Diana M. Khakulova
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Polymer Composites ◽  
Electrical Resistance ◽  
Low Pressure ◽  
Positive Temperature Coefficient ◽  
Positive Temperature ◽  
Electrically Conductive ◽  
Conductive Properties ◽  
Properties Of Composites

We have obtained polymer composites based on low-pressure polyethylene and carbon-containing fillers: carbon black, carbon nanotubes. The electrical properties of the obtained polymer composites have been investigated. Obtained polymer composites have electrically conductive properties. This article shows that the electrical properties significantly depend on the concentration, type of carbon-containing filler, as well as on temperature and voltage. It was found that containment of a certain amount of carbon-containing fillers leads to a formation of conductive paths composites, leading to the manifestation of a positive temperature coefficient in electrical resistance by the material.

Structural Conductivity of Carbon Nanotubes

2008 ◽  
Vol 59 (10) ◽  
pp. 1169-1171 ◽  
Author(s):  
Zoltan Borsos ◽  
Viorel-Puiu Paun ◽  
Irinel Casian Botez ◽  
Cristina-Maria Stoica ◽  
Petrica Vizureanu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fractal Dimension ◽  
Electrical Properties ◽  
Transport Properties ◽  
Structural Form ◽  
Structural Symmetry

In this paper, the explicit connection between the high structural symmetry of the carbon nanotubes and the electrical properties is studied. An interesting path effect on the transport properties will be proved. For a bidimensional lattice, the conductivity sx depends on the structural form, which determines the shape of electron path, respectively it is direct proportional to the fractal dimension of this path.

Influence of crystallinity and chain interactions on the electrical properties of polyamides/carbon nanotubes nanocomposites

2021 ◽  
pp. 50817
Author(s):  
Michele Regina Rosa Hamester ◽  
Daniel Felipe Pietezak ◽  
Carla Dalmolin ◽  
Daniela Becker
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties
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