Novel Magnetorheological Plastomer Filled with NdFeB Particles: Preparation, Characterization, and Magnetic–Mechanic Coupling Properties
This work reported a novel magnetorheological plastomer doped with hard magnetic NdFeB particles (named as H-MRP). The dynamic properties of the H-MRP were systematically tested, and the mechanism of its unusual response to magnetic field was discussed. Unlike the MRP filled with soft magnetic parti...
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Published in | Industrial & engineering chemistry research Vol. 56; no. 31; pp. 8857 - 8863 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
American Chemical Society
09.08.2017
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Online Access | Get full text |
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Summary: | This work reported a novel magnetorheological plastomer doped with hard magnetic NdFeB particles (named as H-MRP). The dynamic properties of the H-MRP were systematically tested, and the mechanism of its unusual response to magnetic field was discussed. Unlike the MRP filled with soft magnetic particles (S-MRP), the storage modulus (G′) of H-MRPs kept growing by 20% when the magnetic field decreased, while that of S-MRPs decreased with decreasing of the magnetic field immediately without an obvious change. Under the magnetic field ranging from 0 to 1 T, there was a peak value in the rising stage of G′ at about 400 mT magnetic field, while that of S-MRPs changed monotonically. After an off–on progress of the magnetic field, the final G′ of H-MRPs increased by over 10%. A possible mechanism was proposed to study the microstructure dependent mechanical properties. It was found that the complex viscoelastic behavior originated from the large hysteresis characteristics of the H-MRPs. |
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ISSN: | 0888-5885 1520-5045 |
DOI: | 10.1021/acs.iecr.7b01553 |