Improve the electrical properties of a broad range of base polymers.
By addition of anti-static and conductive additives like migratory anti-static additives, permanent anti-static additives, carbon black, carbon fibres, carbon nanotubes and stainless steel fibres.
Also available in combination with improved mechanical properties, thermal properties and lubricating properties. Available in flame retardant grades (UL-listed).
Available in colour when no carbon additive is used.
Witcom electrically conductive compounds can be used in product applications to prevent dust attraction which maybe undesirable aesthetically or to prevent the formation of sparks and arcs by electrostatic discharge (ESD). Electrostatic discharge may cause disturbance of or damage to electronic devices, or may cause hazards of fire or explosion in the vicinity of flammable materials. Witcom electrically conductive compounds can also be used where disturbance of electronic devices by electromagnetic radiation of the surrounding and the reversed have to be prevented. Due to the created shielding effect of electromagnetic radiation these electrically conductive compounds are also called Witcom EMI-shielding compounds.
Dependent on the required level of electrical conductivity (surface resistivity, static decay time etc) of the polymer material used in the product application, anti-static additives like migratory anti-static additives and permanent polymeric anti-static additives or conductive additives like carbon black, carbon fibres, carbon nanotubes and stainless steel fibres are added to the electrical insulative base polymers. In the diagram below different values of the surface resisitivity (in Ohm/sq) of to different extent conductive and non conductive polymer materials are shown.
