Steady-State Conduction Current Performance for Multilayer Polyimide/SiO 2 Films.

Autor: Bhutta MS; Binjiang College, Nanjing University of Information Science & Technology, Wuxi 214105, China., Akram S; College of Electrical Engineering, Sichuan University, Chengdu 610065, China.; Institut d'Electronique et des Systèmes, University of Montpellier, 34090 Montpellier, France., Meng P; College of Electrical Engineering, Sichuan University, Chengdu 610065, China., Castellon J; Institut d'Electronique et des Systèmes, University of Montpellier, 34090 Montpellier, France., Agnel S; Institut d'Electronique et des Systèmes, University of Montpellier, 34090 Montpellier, France., Li H; Binjiang College, Nanjing University of Information Science & Technology, Wuxi 214105, China., Guo Y; Binjiang College, Nanjing University of Information Science & Technology, Wuxi 214105, China., Rasool G; Binjiang College, Nanjing University of Information Science & Technology, Wuxi 214105, China., Hussain S; School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China., Nazir MT; School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
Jazyk: angličtina
Zdroj: Polymers [Polymers (Basel)] 2021 Feb 21; Vol. 13 (4). Date of Electronic Publication: 2021 Feb 21.
DOI: 10.3390/polym13040640
Abstrakt: The steady-state electrical conduction current for single and multilayer polyimide (PI) nanocomposite films was observed at the low and high electric field for different temperatures. Experimental data were fitted to conduction models to investigate the dominant conduction mechanism in these films. In most films, space charge limited current (SCLC) and Poole-Frenkel current displayed dominant conduction. At a high electric field, the ohmic conduction was replaced by current-voltage dependency. Higher conduction current was observed for nanocomposite films at a lower temperature, but it declined at a higher temperature. PI nanocomposite multilayer films showed a huge reduction in the conduction current at higher electric fields and temperatures. The conclusions derived in this study would provide the empirical basis and early breakdown phenomenon explanation when performing dielectric strength and partial discharge measurements of PI-based nanocomposite insulation systems of electric motors.
Databáze: MEDLINE
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