Grinder using induced electric field
The present invention relates to a grinder using induced electric fields. The grinder comprises: a grinding unit on which a plurality of protrusions for cutting are disposed on an outer circumferential surface thereof; a power unit disposed in the grinding unit to generate electric fields and attach the conductive materials to the grinding unit; and a chamber disposed outside the grinding unit and comprising beads that disperse and grind the conductive materials attached to the grinding unit, wherein the conductive materials have directionality by the electric fields of the power unit.
1. A method of dispersing and grinding conductive materials using induced electric fields, the conductive materials comprising carbon nano fibers (CNFs) or carbon nano tubes (CNTs), the method comprising:
rotating a grinding unit of a grinder, the grinding unit having a plurality of protrusions disposed on an outer circumferential surface thereof, the protrusions having a cylindrical spike mill structure in which the grinding unit has a cylindrical shape and the protrusions extend from the outer circumferential surface thereof;
generating the induced electric fields from a power unit disposed in the grinding unit, the induced electric fields attaching the conductive materials to the grinding unit, the conductive materials being given directionality by the induced electric fields, the conductive materials being aligned by the induced electric fields in a direction perpendicular to the grinding unit; and
dispersing and grinding the conductive materials attached to the grinding unit using beads contained within a chamber disposed outside the grinding unit, the conductive materials being ground by being disposed between the protrusions and the beads when the grinding unit rotates.
2. The method of claim 1 , wherein the beads contained within the chamber comprise zirconia beads.
3. The grinder method of claim 1 , wherein the grinding unit is electrically grounded.