Effect of modified carbon nanotubes/reduced graphene oxide hybrid filler on electrical conductivity and positive temperature coefficient of resistance of elastomeric nanocomposite
https://doi.org/10.35164/0554-2901-2026-01-29-33
Abstract
The effect of a hybrid filler, modified carbon nanotubes/reduced graphene oxide (MCNT/rGO), synthesized by laser ablation of a ferrocene-graphite target and graphene oxide on the properties of an elastomeric composite based on Silagerm 8030 silicone has been studied. Using Raman spectroscopy (ID/IG = 1.18–1.19) and electron microscopy, it was found that the filler consists of intertwined filamentous structures with a diameter of 30–100 nm. It is shown that the introduction of 1–4 wt.% of the MCNT/rOG hybrid leads to a synergistic improvement in functional characteristics: the time to reach a steady-state thermal regime decreased by 26% (from 142 to 105 s), and the equilibrium temperature increased by 8,3°C (from 32.2°C to 40.5°C). It has been established that the observed effect is due to the formation of a developed conductive network in a polymer matrix, where one-dimensional MCNT create long paths, and two-dimensional flakes of rOG act as conductive "bridges". The results of the work open up prospects for creating energy-efficient self-regulating systems with improved operational characteristics.
About the Authors
Alexander V. Shchegolkov
Tambov State Technical University
Russian Federation
Russian Federation
Alexey V. Shchegolkov
Center of Project Activity, Moscow Polytechnic University
Russian Federation
Russian Federation
A. A. Pirogova
Tambov State Technical University
Russian Federation
Russian Federation
P. N. Nikulin
Tambov State Technical University
Russian Federation
Russian Federation
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Review
For citations:
Shchegolkov A.V., Shchegolkov A.V., Pirogova A.A., Nikulin P.N. Effect of modified carbon nanotubes/reduced graphene oxide hybrid filler on electrical conductivity and positive temperature coefficient of resistance of elastomeric nanocomposite. Plasticheskie massy. 2026;1(1):29-33. (In Russ.) https://doi.org/10.35164/0554-2901-2026-01-29-33
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