Bidisperse magnetorheological fluids utilizing composite polypyrrole nanotubes/magnetite nanoparticles and carbonyl iron microspheres

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU148706" target="_blank" >RIV/00216305:26210/23:PU148706 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28110/23:63569578 RIV/70883521:28610/23:63569578 RIV/60461373:22810/23:43927597
Result on the web
<a href="https://link.springer.com/article/10.1007/s00397-023-01409-9#citeas" target="_blank" >https://link.springer.com/article/10.1007/s00397-023-01409-9#citeas</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00397-023-01409-9" target="_blank" >10.1007/s00397-023-01409-9</a>

Result language
angličtina
Original language name
Bidisperse magnetorheological fluids utilizing composite polypyrrole nanotubes/magnetite nanoparticles and carbonyl iron microspheres
Original language description
Conductive polypyrrole nanotubes were synthesized with a two-step one-pot synthesis. During synthesis, the nanotubes were decorated with magnetite nanoparticles at different concentrations granting them magnetic properties. The characterization of the tubes revealed differences from the theoretical reactions. A bidisperse magnetorheological fluid (MRF) was prepared by mixing the composite polypyrrole nanotubes/magnetite nanoparticles with commercial carbonyl iron spherical microparticles in silicone oil. The rheological properties of the bidisperse system were studied under the presence of magnetic field at room and elevated temperature. An enhancement of the MR effect with the presence of the nanotubes was observed when compared with a standard MRF consisted only of magnetic microparticles. Due to the faster magnetic saturation of the nanotubes, this enhancement is exceptionally high at low magnetic fields. The stability of the system is studied under dynamic conditions where it is revealed that the nanotubes keep the standard particles well dispersed with the sedimentation improving by more than 50%.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20301 - Mechanical engineering

Project
<a href="/en/project/GF21-45236L" target="_blank" >GF21-45236L: Rheology of magnetorheological fluids subjected to non-uniform magnetic fields - pinch mode</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)