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Influence of Technological Conditions in the Formation of Electrically Conductive Thermoplastic Polymer-Graphite Composites

  • NEW TECHNOLOGIES FOR OBTAINING AND PROCESSING MATERIALS
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Inorganic Materials: Applied Research Aims and scope

Abstract

The article discusses the synthesis and properties of electrically conductive polymer composite materials based on low-ash graphite grade GSM-1, modified with acids using bisulfate technology. Investigations of the influence of such technological methods as pressing and rolling on rollers with a variable gap on the conductivity of composite materials based on thermally expanded graphite and thermally expanded polymer-graphite compositions containing acid-modified graphite have been carried out. It is shown that, by applying to polymer composites the technological methods of thermal expansion, pressing, and rolling on rollers, it is possible, firstly, to combine fillers of different nature, shapes, and sizes and, secondly, to obtain composites with the required conductivity of an electrically conductive polymer composite. The paper shows the advantage of using thermally expanded graphite in comparison with other forms of graphite to obtain highly conductive polymer compositions.

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Authors and Affiliations

  1. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334, Moscow, Russia

    V. N. Gorshenev

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  1. V. N. Gorshenev
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Correspondence to V. N. Gorshenev.

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It has been shown that, applying to polymer composites the technological methods of thermal expansion, pressing, and rolling on rollers and other methods, one can, firstly, combine fillers of different nature, shapes, and sizes and, secondly, obtain composites with the required conductivity of the electrically conductive polymer composite.

The advantages of using TEG in comparison with other forms of graphite for the production of highly conductive polymer-graphite composites, as well as the positive role of the expansion of modified graphites in the polymer matrix and the technological method of rolling for the formation of a branched structure of electrically conducting paths in the polymer matrix, are shown.

It has been established, using the example of thermoplastic polymer-graphite composites, that the formation of conductive paths when using rolling techniques is influenced by the rheological properties of the binder.

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Translated by M. Drozdova

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Gorshenev, V.N. Influence of Technological Conditions in the Formation of Electrically Conductive Thermoplastic Polymer-Graphite Composites. Inorg. Mater. Appl. Res. 13, 515–522 (2022). https://doi.org/10.1134/S2075113322020149

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  • DOI: https://doi.org/10.1134/S2075113322020149

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