A new pattern for conductivity of carbon nanofiber polymer composites with interphase and tunneling parameters

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-01-11 DOI:10.1016/j.compositesa.2025.108721

Yasser Zare , Muhammad Tajammal Munir , Kyong Yop Rhee

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引用次数: 0

Abstract

In this study, the Weber-Kamal model is advanced to estimate the electrical conductivity of the samples containing polymer and carbon nanofiber (CNF) by the characteristics of the CNF network, interphase, and tunnels, which were disregarded in the original model. The developed model considers the crucial parameters such as interphase depth, contact number (m), contact diameter, polymer tunneling resistivity (ρ), and tunneling distance (λ), along with network portion and interphase concentration. The developed model’s outputs are validated across various levels of these parameters. Furthermore, the developed model’s calculations are associated to the measured conductivity of various examples. Both parametric evaluations and experimental data corroborate the suggested model. The minimum ranges of λ = 1 nm and ρ = 50 Ω.m maximize the conductivity to 0.23 S/m, while an insulative system is observed at high ranges of λ > 6 nm and ρ > 100 Ω.m. Additionally, an insulative system occurs when m < 30 and the waviness factor (u) > 1.4, whereas the top conductivity of 0.036 S/m is reached with the highest number of contacts (m = 100) among the straight CNFs (u = 1).

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.