Technological innovation

   Polystyrene has a high surface resistivity, usually greater than 1012ohm/sq. The electrical insulation performance is excellent. It is easy to generate static electricity during friction during processing and use. When the electrostatic charge accumulates to a certain level, electrostatic spark discharge may occur, and the harm of static electricity is particularly great, such as the malfunction of the integrated circuit in the office-use machine or the destruction of the memory;

   Through innovation, a composition for processing polystyrene porous materials is disclosed. The composition comprises 65%-88% of polystyrene, 7%-30% of conductive filler and 0.1%-5% of additives, all by weight. The additives include at least antioxidants. The porous material can be extruded or injection-molded by corresponding equipment such as an extruder, which is permanently antistatic and conductive with low cost. Compared with traditional materials, the new porous material can maintain the volume resistivity and surface resistivity by 20% cost reducing.