Experimental study reveals enhanced magnetoelastic responsiveness in magnetic polyurethane elastomers via plasticization, indicating particle chain structuring under magnetic fields.
Magnetic polyurethane elastomers containing various plasticizers were synthesized, and the effect of plasticizers on the magnetoelastic behavior has been investigated. The storage modulus for magnetic elastomers at 0 mT decreased with plasticizer content, whereas the storage modulus at 500 mT dramatically increased. The increment in the storage modulus by magnetic fields increased with plasticizer content indicating a well-developed chain structure of magnetic particles. It was found that the on-field storage modulus can be scaled by the off-field modulus independently of the kind of plasticizers.
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Kimura et al. (2015) studied this question.
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