Article

Magnetically responsive NdFeB–polydimethylsiloxane (NdFeB-PDMS) porous composites were synthesized via emulsion templating to develop soft materials with tunable mechanical and magnetic properties. Emulsions containing 25 wt %, 40 wt %, and 60 wt % dispersed phase and 20 wt %, 40 wt %, and 60 wt % of NdFeB powder were characterized using rheology to understand the influence of formulation on viscoelasticity. Increased powder loading resulted in higher storage modulus and viscosity. Analysis of the polymerized materials revealed a 371 % increase in storage modulus with greater powder loading. Deflection and elongation under external magnetic fields increased with higher porosity, greater powder loading, and reduced thickness. Layered magnetic–nonmagnetic composites further enhanced deflection by up to 71 % while reducing the total NdFeB powder required. These findings demonstrate a tunable and scalable strategy for designing magnetically responsive porous elastomers with potential applications in soft robotics, adaptive actuators, and biomedical devices.

Creator

• Ayres, Neil

License

• Open Data Commons Open Database License (ODbL)

Submitter

Neil Ayres

College

• Arts and Sciences

Department

• Chemistry

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