Magnetorheological (MR) plastomer (MRP) is a class of magneto-sensitive smart material that incorporates magnetic particles into a soft polymer matrix. The low cross-linking density matrix allows the magnetic particles to be entrapped without sedimentation. Moreover, the magnetic particles can be moved under the induction of the magnetic field, so the MRP shows well stability and exhibits high MR effect. This chapter provides a detailed introduction to MRPs, including preparation, mechanical and electrical properties, formation mechanism, and applications.

Chapter Contents:

• 15.1 Introduction
• 15.2 Fabrication methods of MRPs
• 15.2.1 Hydrogel-like MRP
• 15.2.2 Polyurethane MRP
• 15.2.3 Shear-thickening MRP
• 15.2.4 Thermosensitive MRP
• 15.3 Mechanical properties
• 15.3.1 MR effect of MRP
• 15.3.2 Dynamic mechanical properties of MRP
• 15.3.3 Magnetic–electric coupling properties of MRP
• 15.4 Mechanism
• 15.5 Application
• 15.6 Conclusion
• References

Inspec keywords: tensile strength; intelligent materials; magnetic particles; filled polymers; shear strength; magnetorheology

Other keywords: magnetorheological plastomer; low cross-linking density matrix; mechanical properties; magnetic particles; magneto-sensitive smart material; magnetic field; sedimentation; electrical properties; soft polymer matrix

Subjects: Deformation and plasticity; Intelligent materials; Fine-particle magnetic systems; Deformation, plasticity and creep