Title :
Electrical conduction and breakdown in heat-resistive polyparabanic acid (PPA) films
Author_Institution :
Fac. of Eng., Shinshu Univ., Nagano, Japan
Abstract :
The characteristics of electrical conduction and electrical breakdown in heat-resistant PPA films were measured, and the correlation between them is discussed. All samples were aged at 453 K for 12 h, and the current was measured 30 min after voltage application. Electric strength was measured with DC and pulse voltages. Aging of samples for the breakdown measurement was the same as for the conduction measurement. Electrical conduction and electrical breakdown of PPA films show a significant dependence on the chemical structure. The results are explained in terms of thermal breakdown due to Joule heating by hopping conduction
Keywords :
ageing; electric breakdown of solids; electric strength; electric variables measurement; electrical conductivity measurement; electronic conduction in insulating thin films; hopping conduction; polymer films; thermal stresses; 12 hours; 453 K; DC; Joule heating; PPA films; ageing; chemical structure; correlation; electric strength; electrical breakdown; electrical conduction; heat-resistive polyparabanic acid; hopping conduction; polymer film; pulse voltages; thermal breakdown; Aging; Chemicals; Conductive films; Current measurement; Electric breakdown; Electric variables measurement; Pulse measurements; Resistance heating; Thermal conductivity; Voltage;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1992., Proceedings of the 4th International Conference on
Conference_Location :
Sestri Levante
Print_ISBN :
0-7803-0129-3
DOI :
10.1109/ICSD.1992.225013
