The housing for this external computer storage disk was molded from a conductive compound formulated with carbon nanotubes.
The housing for this external computer storage disk was molded from a conductive compound formulated with carbon nanotubes.

RTP Company has expanded its line of conductive compounds to include CCX Conductive Masterbatches for applications where electrostatic discharge (ESD) is an issue.

The masterbatches, created using the company’s long fiber manufacturing process, are available in a variety of resins and can be formulated with stainless steel fiber, carbon nanotubes, carbon black, and the company’s PermaStat dissipative polymer technology.

RTP says that can provide electromagnetic interference (EMI) shielding for sensitive electronics, colored parts and components and FDA compliant applications. They are available in most resin systems and have similar shrinkage and mechanical performance to the unfilled base resin, making them suitable for injection molding and compatible with existing molds and tooling. The carbon nanotube masterbatches can be used in purity applications and have virtually no effect on shrinkage or mechanical properties when compared the unfilled base resin, RTP says, while the carbon black masterbatches have similar isotropic shrinkage, strength, and stiffness to the unfilled base resin, but can also introduce conductivity for a plastic part.

According to the company, the PermaStat masterbatches are formulated for applications that require permanent antistatic or static dissipative performance. These masterbatches can be used in most resins with processing temperatures below 520°F (270°C) and offer uniform dissipative performance, colorability, and transparency in some resins. They are reportedly compatible with injection molding or extrusion equipment.

This story uses material from RTP, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.