Effect of the interfaces polymeric electrode and polymeric polymeric on the formation of the space charges in an insulator polyethylene subjected to a continuous electric field

Abstract EN

We are interested in the behavior under tension of metal dielectric interfaces and dielectric / dielectric towards the formation of space charges.

The material in question is a widely used polyethylene as an insulator in high voltage cables.

The space charges are measured by the pulsed electroacoustic technique during the polarization and depolarization.

We considered a period for interfaces formed by the contact metal / semiconductor and polyethylene / polyethylene, and the association of two films of polyethylene, (thus obtaining a physical interface between two similar materials).

The results show that the formation and dissipation of space charges depend on the nature of interfaces and a 'physical' interface is not a barrier to the transport of charges.