Composite materials with magnetically aligned carbon nanoparticles having enhanced electrical properties and methods of preparation

摘要

Magnetically aligned carbon nanoparticle composites have enhanced electrical properties. The composites comprise carbon nanoparticles, a host material, magnetically sensitive nanoparticles and a surfactant. In addition to enhanced electrical properties, the composites can have enhanced mechanical and thermal properties.

主权项

1. A magnetically aligned carbon nanoparticle composite composition comprising:
carbon nanoparticles, a host material, magnetically sensitive nanoparticles, and a surfactant, wherein said magnetically sensitive nanoparticles are present in the composition from about 1 wt. % to about 15 wt. %, wherein said surfactant attaches to the carbon nanoparticles thereby connecting the carbon nanoparticle with the magnetically sensitive nanoparticles by electrostatic attraction; wherein said composition is magnetically aligned and, once magnetically aligned, has increased electrical conductivity of at least three orders of magnitude, in at least one direction, relative to a composite having the same composition without magnetic alignment.