Changes of polyethylene electret properties when filled with barium titanate

Ability of dielectrics to keep electrified state durably is widely used in different fields. At present time application of charge keeping effect oversteps engineering field; feasibility of utilization in biology and medicine is investigated. The investigation current state and the designing of equipment based on electric effect are on different stages of development. Application of electrets in different fields expands due to both technical advantages of the equipment based on this effect and economic benefits of the utilization of dielectrics [1].