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Compressible Magnetorheological Fluids Based on Composite Polyurethane Microspheres
Author(s) -
Pramudya Irawan,
Sutrisno Joko,
Fuchs Alan,
Kavlicoglu Barkan,
Sahin Huseyin,
Gordaninejad Faramarz
Publication year - 2013
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201200156
Subject(s) - materials science , polyurethane , composite number , composite material , silicone oil , magnetorheological fluid , compressibility , coating , silicone , dispersion (optics) , damper , structural engineering , optics , aerospace engineering , physics , engineering
A novel CMRF is synthesized from modified silicone oil, containing composite polyurethane microsphere additives, and surface‐coated iron particles. The CMRF is designed to act as a liquid spring with controllable damping properties in a damper system. The fluid compressibility is characterized by force/displacement measurements. The addition of composite polyurethane‐microspheres increases the strength and compressibility of the fluid. It also decreases the concentration of iron particles needed in order to achieve the same yield stress as commercially available MRF. Surface coating surface of the iron particles with poly(2,3,4,5,6‐pentafluorostyrene) via RAFT provides dispersion stability.