Viscoelastic properties of nanofluids with carbon tubes
Rudyak V. Ya.1,2, Dashpilov G. R. 1,2, Minakov A. V.1,3, Pryazhnikov M. I.1,3
1Novosibirsk State University of Architecture and Civil Engineering, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
3Siberian Federal University, Krasnoyarsk, Russia
Email: valery.rudyak@mail.ru, g.dashapilov@g.nsu.ru, tov-andrey@yandex.ru, arrivent@yandex.ru

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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.
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