Title :
Lacquered polymer-ceramic composite dielectric film for capacitors
Author :
Simamoto, S. ; Sakata, Y. ; Kojima, J. ; Kume, N. ; Tsujimoto, Y.
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
The possibility of increasing the dielectric constant of lacquered thin film for capacitors was studied using a polymer-ceramic composite film consisting of polyphenylene oxide (PPO) polymer and TiO2 fine particle filler Basic electrical characteristics of the composite film were investigated with a simple capacitor composed of aluminum foil lacquered with a composite dielectric layer 0.9 μm in thickness. Stacked capacitors were produced using double-metallized polyethylene terephthalate film on which the lacquered composite dielectric layer was formed. By an incorporation of 20 vol.% TiO2 into the PPO matrix, capacitor volume was reduced by 30%. However, the capacitor showed a decrease of insulation resistance during the self-healing process. Similar results were obtained when TiO2 was replaced with BaTiO3
Keywords :
capacitors; composite insulating materials; dielectric thin films; filled polymers; permittivity; 0.9 micron; Al foil; BaTiO3; PPO matrix; TiO2 fine particle filler; capacitor volume; dielectric constant; dissipation factor; double-metallized polyethylene terephthalate film; electrical characteristics; insulation resistance; lacquered thin film; polymer-ceramic composite dielectric film; polyphenylene oxide polymer; self-healing process; stacked capacitors; Aluminum; Capacitors; Dielectric constant; Dielectric films; Dielectric thin films; Dielectrics and electrical insulation; Electric variables; Plastic films; Polyethylene; Polymer films;
Conference_Titel :
Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-0649-X
DOI :
10.1109/ELINSL.1992.247034
