Conductive plastic is a kind of plastic with conductive properties after physical modification, which is usually made by mixing conductive materials such as carbon black, carbon fiber, graphite, metal powder and wire into the resin.
Carbon black composited conductive plastic is one of the most common and widely used conductive plastics, because carbon black is rich in resources, low in price, stable and lasting conductive performance after composite, it also has good conductive performance, good processing performance, and has certain enhancement function to the plastic.
The conductivity is related to the particle size, structure, variety, oil absorption value, porosity and filling amount of carbon black. Generally speaking, the smaller the particle size, the larger the oil absorption value. The more pores, the higher the conductivity.