Water jet as a promising tool to disperse carbon nanotubes in water solution

0533244 - ÚGN 2021 RIV CH eng C - Konferenční příspěvek (zahraniční konf.)
Foldyna, Vladimír - Foldyna, Josef - Zeleňák, Michal
Water jet as a promising tool to disperse carbon nanotubes in water solution.
Advances in Water Jetting. Cham: Springer, 2021 - (Klichová, D.; Sitek, L.; Hloch, S.; Valentinčič, J.), s. 67-72. ISBN 978-3-030-53490-5. ISSN 2195-4356. E-ISSN 2195-4364.
[International Conference on Water Jet 2019 - Research, Development, Applications /6./. Čeladná (CZ), 20.11.2019-22.11.2019]
Institucionální podpora: RVO:68145535
Klíčová slova: continuous/pulsating water jet * carbon nanotubes * dispersion
Obor OECD: Mechanical engineering
https://link.springer.com/chapter/10.1007/978-3-030-53491-2_7

This paper is focused on obtaining a homogenous dispersion of carbon nanotubes in water solution treated by the pulsating and continuous water jet technology. Our experimental setup consists of Kärcher HD 6/18 plus pump, ABB robot IRB 6640, pulsating jet generator and Hammelmann nozzle with a diameter d = 0.3 mm. Carbon nanotubes were in the concentration of 0.375 wt%. Three types of samples were prepared. Carbon nanotubes were mixed with no surfactant, half concentration of surfactant and with a standard concentration of surfactant, which was optimized in previous experiments (1.5 wt%). Based on our previous experimental results, we used a naphthalene based superplasticizer. A spectrum of pressures of 1 MPa, 5 MPa, 10 MPa and 15 MPa was used to induce both cavitation and non-cavitation phenomena. Samples were kept in idle state to investigate if they were subject to re-agglomeration. Consequently, all Carbon nanotubes solutions were measured on the Malvern nanosizer.
Trvalý link: http://hdl.handle.net/11104/0311689