Title :
Electret properties of spin-coated Teflon-AF films
Author :
Gunther, P. ; Ding, H. ; Gerhard-Multhaupt, R.
Author_Institution :
Inst. for Electroacoust., Tech. Univ. of Darmstadt, Germany
Abstract :
Novel amorphous copolymers of tetrafluoroethylene and perfluoro-2,2-dimethyl-1,3-dioxole were recently introduced by DuPont under the trade name Teflon AF. These polymers are being studied and used for a number of applications mostly in optics, since they exhibit high optical transparency up to a wavelength of about 3 μm. Teflon AF may be dissolved in fluorocarbon solvents and spin-coated Teflon-AF films were studied using isothermal and thermally stimulated discharge measurements. Results are presented and discussed in comparison with the corresponding properties of the other Teflon fluoropolymers. The long-term charge-storage capability of Teflon AF is similar to that of the other Teflon materials for the same electric fields
Keywords :
electrets; insulation; organic insulating materials; polymer blends; polymer films; thermally stimulated currents; amorphous copolymers; electret properties; fluorocarbon solvents; isothermal measurements; long-term charge-storage capability; optical transparency; optics; perfluoro-2,2-dimethyl-1,3-dioxole; polymers; spin-coated Teflon-AF films; tetrafluoroethylene; thermally stimulated discharge; Amorphous materials; Chemicals; Electrets; Optical buffering; Optical films; Optical polymers; Optical waveguides; Polymer films; Stimulated emission; Temperature;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378973
