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Future Directions

Magnetite offers a property set unlike any other material and the opportunity to impart those properties to thermosetting and thermoplastic polymers, coatings, or elastomers. Since the introduction of filler-grade materials in the 1990s, many applications have arisen in a range of polymers including polypropylene, nylons, polyurethanes, and silicones. As people become aware of this comparatively new filler, applications emerge on a regular basis driven by the following properties:

  • • Magnetic properties
  • • High density
  • • Thermal conductivity
  • • High volumetric specific heat capacity
  • • Electrical conductivity
  • • Radiation shielding ability

Several new applications suggest themselves including magnetite as a tracer to make plastics detectable, as electromagnetic interference (EMI) shielding for cables (Aldissi 1993) with magnetite in the bedding compound or insulation, and for radiation shielding against microwaves or radar.

References

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