Viscoelastic properties of nanofluids with carbon tubes

V. Ya. Rudyak^ab, G. R. Dashapilov^ab, A. V. Minakov^ac, M. I. Pryazhnikov<sup>ac

a</sup> Novosibirsk State University of Architecture and Civil Engineering, Novosibirsk, Russia
^b Novosibirsk State University, Novosibirsk, Russia
^c Siberian Federal University, Krasnoyarsk, Russia

Abstract: The method of diffusion wave spectroscopy is used to study the microrheology of several nanofluids based on water, ethylene glycol and isopropyl alcohol with single-wall and multi-wall nanotubes. Their viscosity and rheology have been previously investigated, and it has been shown that, starting with a certain concentration of carbon nanotubes, nanofluids are non-Newtonian and viscoplastic. At the same time, it was experimentally established that these nanofluids are viscoelastic. Various viscoelastic characteristics of these nanofluids have been systematically studied and compared.

Keywords: viscoelasticity, nanofluid, microrheology, carbon nanotubes.

Received: 22.04.2022
Revised: 19.05.2022
Accepted: 20.05.2022

DOI: 10.21883/PJTF.2022.14.52860.19232

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