Monte Carlo simulations of nanorod filler in composite polymer material

International Conference on Materials Research and Innovation

Kerdkaen, N.^1^2^3 ; Sutthibutpong, T.^2^3^4 ; Phongphanphanee, S.^2^5^6 ; Boonchui, S.^1^6 ; Wong-Ekkabut, J.^1^2^3^6

Department of Physics, Faculty of Science, Kasetsart University, Bangkok

10900, Thailand^1

Computational Biomodelling Laboratory for Agricultural Science and Technology (CBLAST), Faculty of Science, Kasetsart University, Bangkok

10900, Thailand^2

Thailand Center of Excellence in Physics (ThEP Center), Commission on Higher Education, Bangkok

10400, Thailand^3

Department of Physics, Faculty of Science, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok

10140, Thailand^4

Department of Material Science, Faculty of Science, Kasetsart University, Bangkok

10900, Thailand^5

Specialized Center of Rubber and Polymer Materials for Agriculture and Industry (RPM), Faculty of Science, Kasetsart University, Bangkok

10900, Thailand^6

关键词: Composite polymer;    Conductive Polymer;    Conductive properties;    Electronic device;    Filler concentration;    Logistic growth;    Percolation path;    Threshold concentrations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/526/1/012006/pdf
DOI  :  10.1088/1757-899X/526/1/012006

来源: IOP

【 摘 要 】

Conductive polymer (CP) is a special class of polymeric materials with conductive property which possesses high potential for the fabrication of future advanced electronic devices. To design a higher conductivity polymer, composite polymer material with conductive nanorod filler is one of alternative ideas to replace the high-cost intrinsically conductive polymeric materials. In this study, our in-house Monte-Carlo simulation was performed to generate a number of randomly-positioned nanorods within a 3D confined-space box and to assess percolation paths formed by nanorods that connected two electrodes for each configuration. The results showed that the probability of finding connection path was related to the concentrations of nanorod filler in 3D confined-space box. The increasing probability to find connection paths when adding more filler concentrations was found to be a logistic growth, in which growth rate and threshold concentration depended on soft-shell filler radius. Our finding will be beneficial for designing composite conductive polymer for switching sensor.