Journal ArticleDOI
Magnetorheological Fluids with Surface-Modified Iron Oxide Magnetic Particles with Controlled Size and Shape
Chen Shen,Yasufumi Oda,Masaki Matsubara,Jun Yabuki,Shinya Yamanaka,Shinya Yamanaka,Hiroya Abe,Makio Naito,Atsushi Muramatsu,Kiyoshi Kanie +9 more
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TLDR
In this paper, surface modification with dodecyltrimethoxysilane (DTM) was carried out via a silane coupling reaction to increase the dispersion stability of the particles.Abstract:
This study is focused on surface-modified Fe3O4@SiO2 particles with precisely controlled sizes and shapes applied in magnetorheological (MR) fluids. After the preparation of the monodisperse spindle-shaped and cubic Fe3O4@SiO2 particles, surface modification with dodecyltrimethoxysilane (DTM) was carried out via a silane coupling reaction to increase the dispersion stability of the particles. Afterward, MR fluids were prepared by mixing the DTM-modified Fe3O4@SiO2 particles with silicon oil. Transmission electron microscopy observations demonstrated that spindle-shaped Fe3O4@SiO2 particles could form a more stable chain-like structure than cubic Fe3O4@SiO2 particles upon application of an external magnetic field. The rheological measurements of MR fluids also indicated that the surface modification with DTM, the introduction of anisotropic shapes, and the increase in the particle size all played positive roles in the improvement in MR properties.read more
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Smart and biomimetic 3D and 4D printed composite hydrogels: opportunities for different biomedical applications
Samira Malekmohammadi,Samira Malekmohammadi,Samira Malekmohammadi,Negar Sedghi Aminabad,Amin Sabzi,Amir Zarebkohan,Amir Zarebkohan,Mehdi Razavi,Massoud Vosough,Mahdi Bodaghi,Hajar Maleki +10 more
TL;DR: A review of stimuli-responsive hydrogels according to the kinds of external changes and recent applications in biomedical and 4D bioprinting is presented in this article, where the authors focus on the applicability of engineered smart hydrogel composites in biomedical fields, including tissue engineering, cancer therapy, wound dressing, soft robotic actuators, and controlled release of bioactive substances/drugs.
Journal ArticleDOI
Effects of electric and magnetic fields on dielectric and elastic properties of membranes composed of cotton fabric and carbonyl iron microparticles
TL;DR: In this article , the influence of electric and magnetic fields applied both separately and superimposed on the dielectric and elastic properties of membranes (Ms) composed of cotton fabric and carbonyl iron microparticles (CI) was investigated.
Journal ArticleDOI
Molecular Dynamics Simulations and Experimental Studies of the Microstructure and Mechanical Properties of a Silicone Oil/Functionalized Ionic Liquid-Based Magnetorheological Fluid.
TL;DR: In this paper , a new type of magnetorheological (MR) fluid that has a novel carrier liquid, i.e., silicone oil (SO) mixed with a hydroxyl-functionalized ionic liquid (IL-OH), is presented.
Journal ArticleDOI
Magnetorheological Elastomer Films with Controlled Anisotropic Alignment of Polystyrene-Modified Fe3O4 Nanoplates
Chenggang Shen,Masaki Matsubara,Tomomi Masui,Hiroyuki Kishimoto,Shinya Yamanaka,Atsushi Muramatsu,Kiyoshi Kanie +6 more
Journal ArticleDOI
Properties and mechanism of ionic liquid/silicone oil based magnetorheological fluids
TL;DR: In this paper , an ionic liquid (IL) with silicone oil (SO) was used to improve the sedimentation stability of a magnetorheological fluid (MRF).
References
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Journal ArticleDOI
Directed Self-Assembly of Nanoparticles
TL;DR: The present review critically investigates to what extent self-assembly can be directed, enhanced, or controlled by either changing the energy or entropy landscapes, using templates or applying external fields.
Journal ArticleDOI
MR fluid, foam and elastomer devices
J. David Carlson,Mark R. Jolly +1 more
TL;DR: Magnetorheological (MR) fluids, foams and elastomers comprise a class of smart materials whose rheological properties may be controlled by the application of an external magnetic field.
Journal ArticleDOI
Magnetorheological fluids: a review
TL;DR: Magnetorheological (MR) materials are a kind of smart materials whose mechanical properties can be altered in a controlled fashion by an external magnetic field as discussed by the authors, and they traditionally include fluids, elastomers and foams.
Journal ArticleDOI
The Magnetic Fluid Clutch
TL;DR: A new type of magnetic fluid and several classes of new devices utilizing this fluid have been developed at the National Bureau of Standards as discussed by the authors, and one application of this fluid has been in electromagnetic clutches, but the electro-magnetically controlled mixture offers promise for other uses also.
Journal ArticleDOI
Magnetorheology: materials and application
TL;DR: In this article, preparation methods and magnetorheological properties of various magnetic composites with soft magnetic particles and polymers are reviewed, and some industrial applications, such as a MR dampers and a MR polishing, are briefly summarized.