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Anti-icing systems based on elastomers modified with carbon nanostructures with the effect of temperature self-regulation

A.V. Shchegolkov*, A.V. Shchegolkov
DOI 10.31242/2618-9712-2022-27-1-141-151

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Tambov State Technical University, Tambov, Russia
*Ener[email protected]

Received 05.10.2021
Accepted 27.01.2022

Citation
Shchegolkov A.V., Shchegolkov A.V. Anti-icing systems based on elastomers modified with carbon nanostructures with the effect of temperature self-regulation // Arctic and Subarctic Natural Resources. 2022, Vol. 27, No. 1. P. 141–151. (In Russ.) https://doi.org/10.31242/2618-9712-2022-27-1-141-151

Abstract. The increased activity in the Arctic and the northern territories of the Russian Federation makes the development of the efficient de-icing systems highly relevant. The key challenge in the development of de-icing systems with a high level of energy efficiency combined with the physical, mechanical and electro-physical properties of the materials which can become the basis for producing heating elements. The use of the principle of self-regulation of temperature for electric heaters based on elastomers modified by multilayer carbon nanotubes (MCNTs) makes it possible to form energy-efficient de-icing systems. The paper presents experimental results of the study of electric heaters with self-regulating temperature effect. For carrying out the studies, we developed and produces samples based on a polymeric matrix – an organosilicon compound – which was modified by MCNT and graphite. We used a scanning electron microscopy technique in order to study the morphology of MCNTs and graphite. The application of a non-contact method of temperature investigation made it possible to estimate the temperature field distribution on the surface of the heating elements. The results are of great practical importance, since the heating elements can have different configurations and can be used at low ambient temperatures. We have found that for a sample with a MCNT and graphite (mass concentration equal to 16.5 wt. %) that a decrease in the ambient temperature results in an increase in the current consumption and correspondingly in the power up to 2.2 kW/m2, which is a consequence of a constant temperature of 71.4 °С on the heater surface and a confirmation of the self-regulation effect. The developed heaters can become the basis of various technical systems for de-icing.

Keywords: deicing systems, elastomers, carbon nanotubes, graphite, electric heater, temperature field.

Acknowledgements. The research was carried out within the framework of the Agreement number 10-MU20 on support of the winning project number 23-MU-20 (02) of the regional competition «Grants to Support Applied Research of Young Scientists in 2020».


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