New conductive additives from Eeonyx Corp., Pinole, Calif., are said to offer better resistivity control and come in a range of colors. Eeonomer additives are carbon blacks coated with inherently conductive polymers (ICPs)-polypyrrole or polyaniline. In-situ polymerization of the resin on the carbon black reportedly provides much greater thermal stability (up to 572 F) than typical ICPs alone, thus allowing use in a wider range of resins. New Series 700 and 800 compounds reportedly allow for much better control and reproducibility of conductivity than does carbon black alone. In some resins (ABS, nylon, polyesters) only half as much Eeonymer reportedly is needed to obtain the same level of conductivity as with carbon black, and less sloughing results, as well. In heterogeneous alloys like TPOs, Eeonomer is said to produce 10-fold higher conductivity than an equal loading of carbon black. Eeonyx has expanded its product line by custom blending with other powders to create a range of resistivities and colors, from light gray to green and light brown. These are mostly aimed at ESD flooring laminates. The company also offers EeonTex conductive fabrics of glass, quartz, or Kevlar coated with polypyrrole, polyaniline, or polythiophene. These can be used in thermoset composites for applications like low-radar-profile antennas for the Navy.
750 Belmont Way Pinole, CA 94564
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