Magnetorheological Fluids Based on Ionic Liquids

Guerrero-Sanchez, CA Carlos; Lara-Ceniceros, Tania E.; Jiménez‐Regalado, Enrique J.; Raşa, M.; Schubert, Ulrich S.

doi:10.1002/adma.200700302

Cited by 147 publications

(111 citation statements)

References 46 publications

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“…At this point it is important to mention that both Guerrero-Sánchez et al (Guerrero-Sánchez et al, 2007) and Oliveira et al (Oliveira et al, 2009) failed to synthesize ultrastable IL-based suspensions when using magnetite (Fe3O4) nanoparticles.…”

Section: Ionic-liquid Based Ferrofluidsmentioning

confidence: 99%

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New Perspectives for Magnetic Fluid-Based Devices Using Novel Ionic Liquids as Carriers

Rodríguez‐Arco¹,

Gómez‐Ramírez²,

Durán³

et al. 2012

Smart Actuation and Sensing Systems - Recent Advances and Future Challenges

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Section: Ionic-liquid Based Ferrofluidsmentioning

confidence: 99%

“…Guerrero-Sánchez et al (Guerrero-Sánchez et al, 2007) were pioneers in the preparation of IL-based MRFs. More specifically, they prepared several suspensions consisting of either micron-or nanosized magnetite particles dispersed in eight different ILs.…”

Section: Ionic-liquid Based Magnetorheological Fluidsmentioning

confidence: 99%

New Perspectives for Magnetic Fluid-Based Devices Using Novel Ionic Liquids as Carriers

Rodríguez‐Arco¹,

Gómez‐Ramírez²,

Durán³

et al. 2012

Smart Actuation and Sensing Systems - Recent Advances and Future Challenges

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“…colleagues at the Eindhoven University of Technology and Dutch Polymer Institute developed smart fluids made up of iron nanoparticles in an ionic liquid (6). Casting about for possible applications, GuerreroSanchez and Hooghoudt discovered that they could equip the nanoparticles with catalysts that depolymerize PET into its monomers, individual ethylene terephthalate molecules (which, in turn are a combination of ethylene glycol and terephthalic acid).…”

Section: Chemical Recyclingmentioning

confidence: 99%

On the brink of a recycling revolution?

Carey¹

2017

Proc. Natl. Acad. Sci. U.S.A.

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“…Also, the carrier fluids, although typically silicon or petroleum oils or other non-polar liquids [15][16][17][18], have been studied to a large extent [8], including ionic liquids [19][20][21][22], aqueous media [23,24] or even ferrofluids [4].…”

Section: Introductionmentioning

confidence: 99%

Dynamic and wear study of an extremely bidisperse magnetorheological fluid

Iglesias¹,

Ruiz-Morón²,

Durán³

et al. 2015

Smart Mater. Struct.

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HIGHLIGHTSFive magnetorheological fluids are tested for MR response, and wear and friction A standard four-ball method is used for wear testingThe bimodal (with a magnetite ferrofluid as base liquid) fluid displays the best MR performance both before and after testing Steel scratches are observed in fluids containing the iron particles in base oil, the effect being more important in absence of anti-wear additiveThe bimodal fluid produces a milder wear, at the price of a larger friction coefficient ABSTRACTIn this work the friction and wear properties of five magnetorheological (MR) fluids with varying compositions are investigated. Considering that many of the proposed applications for these fluids involve lubricated contact between mobile metal-metal or polymer-metal parts, the relationship between MR response and wear behavior appears of fundamental importance. One of the fluids (MR#1) contains only the iron microparticles and the base oil; the second and third ones (MR#2 and MR#3) contain an anti-wear additive as well. The fourth one (MR#4) is a well know commercial MR fluid. Finally, MR#5 is stabilized by dispersing the iron particles in a magnetite ferrofluid. The MR response of the latter fluid is better (higher yield stress and postyield viscosity) than that of the others. More important, it remains (and even improves) after the wear test: the pressure applied in the four-ball apparatus produces a compaction of the magnetite layer around the iron microparticles. Additionally, the friction coefficient is larger, which seems paradoxical in principle, but can be explained by considering the stability of MR#5 in comparison to the other four MRs, which appear to undergo partial phase separation during the test. In fact, electron and optical microscope observations confirm a milder wear effect of MR#5, with almost complete absence of scars from the steel test spheres and homogeneous and shallow 3 grooves on them. Comparatively, MR#2, MR#3 and, particularly, MR#1 produce a much more significant wear.

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Magnetorheological Fluids Based on Ionic Liquids

Cited by 147 publications

References 46 publications

New Perspectives for Magnetic Fluid-Based Devices Using Novel Ionic Liquids as Carriers

New Perspectives for Magnetic Fluid-Based Devices Using Novel Ionic Liquids as Carriers

On the brink of a recycling revolution?

Dynamic and wear study of an extremely bidisperse magnetorheological fluid

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