Electrical percolation threshold of carbon black in a polymer matrix and its application to antistatic fibre

Choi, Hyun‐Jung; Kim, Moo Sung; Ahn, Damiro; Yeo, Sang Young; Lee, Sohee

doi:10.1038/s41598-019-42495-1

Cited by 108 publications

(81 citation statements)

References 44 publications

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“…Once the amount of CB is sufficient to complete the conductive network path within the structure, the increase in conductivity is much slower because it simply implies an increment in the number of networks. This event is known in the literature as the percolation transition and has been commonly observed in various fields of research [47][48][49].…”

Section: Validation Of the Model: Variation In Cb Contentmentioning

confidence: 99%

Modeling the Electrical Conductive Paths within All‐Solid‐State Battery Electrodes

et al. 2020

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All-solid-state batteries constitute a very promising energy storage device. Two very important properties of these battery cells are the ionic and the electrical conductivity, which describe the ion and the electron transport through the electrodes, respectively. In this work, a numerical method is presented to model the electrical conductivity, considering the outcome of discrete-element method simulations and the intrinsic conductivities of both the active material particles and the conductive additive particles. The results are calibrated and validated with the help of experimental data of real manufactured electrodes. The tortuosity, which strongly influences the ionic conductivity, is also presented for the analyzed electrodes, taking their microstructure into account.

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Section: Validation Of the Model: Variation In Cb Contentmentioning

confidence: 99%

Modeling the Electrical Conductive Paths within All‐Solid‐State Battery Electrodes

et al. 2020

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“…However, even when the fibers produced exhibit electrical conductivity, they tend to have poor physical properties because of CB in the fiber agglomerates. Therefore, it is necessary to develop CB materials with high tensile strength and high electrical conductivity by tailoring its interactions with the polymer to produce versatile fibers [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Properties of Conductive Polyacrylonitrile Fibers Prepared by Using Benzoxazine Modified Carbon Black

et al. 2020

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Composites of carbon black (CB) and polymers are attractive for producing conductive fibers. Herein, to achieve improved interactions with polymers, the surface of CB was modified to form 4-aminobenzoyl-functionalized carbon black (ABCB), benzoxazine-functionalized carbon black (BZCB), and Ag-anchored carbon black (Ag-ABCB). The surface-modified CBs were characterized by Fourier transform infrared spectroscopy and thermogravimetric analysis, and X-ray photoelectron spectroscopy was utilized to confirm the presence of Ag in Ag-ABCB. Conductive polyacrylonitrile (PAN) fibers were wet-spun with conductive fillers (CB, ABCB, Ag-ABCB, and BZCB) to investigate the effects of various functional groups on the electrical and mechanical properties. After annealing the conductive PAN fibers, the conductivity and tensile strength greatly increased, whereas the diameter decreased. Notably, the fiber with a BZCB/PAN weight ratio of 12/88 possessed a conductivity of 8.9 × 10−4 S/cm, and strength of 110.4 MPa, and thus the highest conductivity and best mechanical properties in the conductive PAN fiber. These results indicate that the annealed BZCB/PAN fibers have potential applications in the manufacturing of antistatic fabrics.

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“…Percolation phenomenon in polymer composites filled with conducting fillers is plausibly simulated in the framework of statistical percolation theory . Having accumulated properties of both the composites' components and being simultaneously insulating/conducting, polymer/carbon composites are capable of finding diversely invaluable and wide‐reaching applications . Nevertheless, as a matter of fact, percolation obeys a rather complicated pathway and is not merely dependent on the filler contents in a polymer composite .…”

Section: Introductionmentioning

confidence: 99%

Kinetics of dynamic percolation in polymer/carbon composites

Arshad

Maaroufi

2019

Polymer Engineering & Sci

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Dynamic percolation differs from static percolation in polymer composites owing to its occurrence at a particular filler fraction under thermal activation. Mechanistic insights into dynamic percolation might lead to develop polymer composites with controlled electrical properties at lower filler fractions and improved temperature coefficient of resistance phase transitions. Although attempts have been made to kinetically describe the dynamic percolation in polymer composites, a generalized mechanism-based approach has not yet been reported. In this article, a systematic and generalized theoretical approach to kinetically model the dynamic percolation in polymer/carbon composites has been put forward. Based on the proposed approach, a kinetic expression to predict the quasi-thermodynamic equilibrium state in a polymer/ carbon composite at constant temperature is derived. The soundness of the proposed approach is justified by its effective applications on poly(vinylidene fluoride)/multiwalled carbon nanotube (PVDF/MWNT), poly(vinylidene fluoride)/carboxyl-functionalized MWNT (PVDF/MWNT), high-density polyethylene/carbon black, and poly(methyl methacrylate)/carbon black composites. Certain mechanistic complexities of dynamic percolation are also pointed out and discussed. POLYM. ENG. SCI., 60:423-433, 2020.

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Electrical percolation threshold of carbon black in a polymer matrix and its application to antistatic fibre

Cited by 108 publications

References 44 publications

Modeling the Electrical Conductive Paths within All‐Solid‐State Battery Electrodes

Modeling the Electrical Conductive Paths within All‐Solid‐State Battery Electrodes

Properties of Conductive Polyacrylonitrile Fibers Prepared by Using Benzoxazine Modified Carbon Black

Kinetics of dynamic percolation in polymer/carbon composites

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