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Issue 26, 2012
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Magnetic Plasticine™: a versatile magnetorheological material

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A novel black Plasticine™ was developed by dispersing iron microparticles into the paraffin wax–petroleum jelly composite matrix. Due to the presence of magnetic particles, this Plasticine™ exhibited magnetic-dependent mechanical properties and can be defined as a typical magnetorheological gel (MRG) material. The magnetic Plasticines™ were malleable and their mechanical properties were highly influenced by the iron contents. With increasing of the externally applied magnetic field, the shear storage modulus sharply increased. Under the optimum iron content, the magnetic induced modulus can be increased to as high as 4.23 MPa, whereas the relative magnetorheological effect was 305% and this value was higher than the reported magnetorheological elastomer (MRE). Interestingly, when the temperature reached a critical point, the magnetic Plasticine™ changed to a fluid like material which exhibited the typical characteristics of magnetorheological fluid (MRF). It was found the versatile magnetic Plasticine™ can seldom be transformed between the MRG and MRF without changing its dynamic properties.

Graphical abstract: Magnetic Plasticine™: a versatile magnetorheological material

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Publication details

The article was received on 17 Apr 2012, accepted on 09 May 2012 and first published on 10 May 2012

Article type: Paper
DOI: 10.1039/C2JM32375C
J. Mater. Chem., 2012,22, 13395-13400

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    Magnetic Plasticine™: a versatile magnetorheological material

    S. Xuan, Y. Zhang, Y. Zhou, W. Jiang and X. Gong, J. Mater. Chem., 2012, 22, 13395
    DOI: 10.1039/C2JM32375C

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