Assessment of electrical conductivity of polymer nanocomposites containing a deficient interphase around graphene nanosheet

Yasser Zare; Muhammad Tajammal Munir; Kyong Yop Rhee

doi:10.1038/s41598-024-59678-0

Assessment of electrical conductivity of polymer nanocomposites containing a deficient interphase around graphene nanosheet

Sci Rep. 2024 Apr 16;14(1):8737. doi: 10.1038/s41598-024-59678-0.

Authors

Yasser Zare¹, Muhammad Tajammal Munir², Kyong Yop Rhee³

Affiliations

¹ Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran. y.zare@aut.ac.ir.
² College of Engineering and Technology, American University of the Middle East, 54200, Egaila, Kuwait.
³ Department of Mechanical Engineering (BK21 Four), College of Engineering, Kyung Hee University, Yongin, Republic of Korea. rheeky@khu.ac.kr.

PMID: 38627579
DOI: 10.1038/s41598-024-59678-0

Abstract

In this study, a poor/imperfect interphase is assumed to express the effective interphase thickness, operative filler concentration, percolation onset and volume share of network in graphene-polymer systems. Additionally, a conventional model is advanced by the mentioned terms for conductivity of samples by the extent of conduction transference between graphene and polymer medium. The model predictions are linked to the experimented data. Likewise, the mentioned terms as well as the conductivity of nanocomposites are expressed at dissimilar ranges of various factors. The novel equations successfully predict the percolation onset and conductivity in the samples containing a poor/imperfect interphase. Thin and long nanosheets with high conduction transportation desirably govern the percolation onset and nanocomposite conductivity, but a bigger tunneling distance causes a lower conductivity.

Keywords: Conductivity; Imperfect interface/interphase; Polymer graphene nanocomposites; Tunneling effect.