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Polymer Tunneling Resistivity Between Adjacent Carbon Nanotubes (Cnt) in Polymer Nanocomposites Publisher



Zare Y1 ; Rhee KY2
Authors
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Authors Affiliations
  1. 1. Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
  2. 2. Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin, 446-701, South Korea

Source: Journal of Physics and Chemistry of Solids Published:2020


Abstract

This work expresses an equation for polymer tunneling resistivity (summarized as tunneling resistivity) between adjacent carbon nanotubes (CNT) in polymer nanocomposites (PCNT). Two proper models for PCNT conductivity are connected to suggest the tunneling resistivity. The suggested equation expresses the tunneling resistivity by several main terms such as CNT content, filler conductivity, CNT dimensions, CNT curliness, percolation onset, network portion, interphase depth, tunneling distance/length and tunneling width. The developed models and the suggested equation are used to forecast the conductivity and tunneling resistivity in various samples. Furthermore, all parameters’ significances on the tunneling resistivity are justified. The tunneling resistivity of samples decreases by increment of CNT concentration, but high filler contents cause the slight variation of tunneling resistivity. Moreover, low percolation onset, dense interphase, slight waviness, high filler conductivity, high fraction of networks and short tunneling space weaken the tunneling resistivity. The differences in the tunneling possessions significantly change the tunneling resistivity from 0 to 2500 Ω m, while the wettability of filler by polymer medium insignificantly manipulates the tunneling resistivity. © 2020 Elsevier Ltd
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