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Study of Conductivity and Percolation Effect on Orientated CNTs/PMMA Composites

Du Xiao-Fang

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Abstract

The electrical conductivity and percolation thresholds of realigned carbon nanotubes(CNTs) composites have been simulated based on Effective-Medium Theory(EMA).The result reveals that electrical conductivity and the percolation threshold depend on the orientation,the aspect ratio and the structure of CNTs in the composite matrix strongly.Percolation thresholds can be concluded simply by computing the increased ratio of electrical conductivity with the content of CNTs.The simulated results are inosculated with the experimental results basically,and the discrepancy between simulated results and experimental results has been interpreted reasonably.

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What this paper is about

The electrical conductivity and percolation thresholds of realigned carbon nanotubes(CNTs) composites have been simulated based on Effective-Medium Theory(EMA).The result reveals that electrical conductivity and the percolation threshold depend on the orientation,the aspect ratio and the structure of CNTs in the composite matrix strongly.Percolation thresholds can be concluded simply by computing the increased ratio of electrical conductivity with the content of CNTs.The simulated results are inosculated with the experimental results basically,and the discrepancy between simulated results and experimental results has been interpreted reasonably.

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Available abstract

The electrical conductivity and percolation thresholds of realigned carbon nanotubes(CNTs) composites have been simulated based on Effective-Medium Theory(EMA).The result reveals that electrical conductivity and the percolation threshold depend on the orientation,the aspect ratio and the structure of CNTs in the composite matrix strongly.Percolation thresholds can be concluded simply by computing the increased ratio of electrical conductivity with the content of CNTs.The simulated results are inosculated with the experimental results basically,and the discrepancy between simulated results and experimental results has been interpreted reasonably.

Key concepts: Materials science, Percolation threshold, Carbon nanotube, Percolation (cognitive psychology), Composite material, Conductivity, Electrical resistivity and conductivity, Composite number

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