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Estimation of Average Contact Number of Carbon Nanotubes (Cnts) in Polymer Nanocomposites to Optimize the Electrical Conductivity 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, 1 Seocheon, Giheung, Gyeonggi, Yongin, 449-701, South Korea

Source: Engineering with Computers Published:2022


Abstract

The present paper suggests an equation for the average contact number of carbon nanotubes (CNTs) in CNT-reinforced polymer nanocomposites (PCNT) by two developed equations for electrical conductivity. Several novel parameters in PCNT such as CNT size, CNT concentration, network fraction, interphase depth, tunneling effect, and CNT wettability by the polymer medium are considered to define the average contact number (m). “m” is calculated for some samples and the variation of “m” is explored over a range of parameters’ values. The results show that dense interphase, high fraction of networked CNTs, reedy and short CNTs, low CNT surface energy, high polymer surface energy, low tunneling distance, and small contact diameter increase the “m” improving the conductivity. Moreover, tunneling distance and CNT contact diameter have the greatest effects on the “m”. The optimized level for “m” is necessary to control the nanocomposite’s conductivity. © 2020, Springer-Verlag London Ltd., part of Springer Nature.
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