ISSN (print) 1995-2732
ISSN (online) 2412-9003


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DOI: 10.18503/1995-2732-2021-19-2-58-67


This paper identifies the effect of multistage mechanical activation of multi-wall carbon nanotubes (MWCNTs) on the uniformity of the temperature field distribution on the surface of a nanomodified organosilicon elastomer. It describes an MWCNT preliminary treatment procedure before mechanical activation in order to create a homogeneous dispersed composition by removing impurity electrically conductive particles and decreasing impurity conductivity. The author found out the influence of each of the mechanical activation stages on the parameters of MWCNTs. At the first stage of mechanical activation, MWCNTs are distributed in the volume, and a homogeneous dispersed system is formed, influencing efficiency of the second main stage due to the fact that this stage has an effect on the activity of MWCNTs, when interacting with the elastomer matrix, in particular on an interfacial contact between MWCNTs and the polymer matrix. The second stage decreases in the entanglement of MWCNTs formed into separate beams and increases the efficiency of heat release, making it homogeneous and uniform with a maximum temperature, reaching a peak value of 57.1ºС. The paper contains studies on a distribution of the temperature field in WF-20B, a centrifugal paddle mixer for mixing MWCNT with graphite, showing that in addition to the mechanical action on MWCNTs, there is also a thermal effect associated with the transition of mechanical friction energy of the binary mixture MWCNTs/graphite on the paddle and walls of the container, while the temperature can reach 104.6ºС. The paper also includes studies on the strength characteristics of nanomodified adhesive composites based on polyurethane elastomer; as a result, it was identified that mechanical activation leads to an improvement in strength up to a value of 2.75 ± 5% MPa. The best concentration of the binary mixture MWCNTs/graphite in the elastomer matrix is 3%.


Percolation, multi-wall carbon nanotubes, mechanical activation, heat release, modification, elastomers.

For citation

Shchegolkov A.V. Multistage Mechanical Activation of MWCNTS to Improve Percolation Transitions in the Elastomer / MWCNTS System: Approaches to the Implementation and Practice of Modifying Elastomers. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2021, vol. 19, no. 2, pp. 58–67.

Alexander V. Shchegolkov – PhD (Eng.), Associate Professor, Tambov State Technical University, Tambov, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-4317-0689

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