Study in the charging-mechanism of fluorocarbon electret materials

Author

Tai, Wang Shou ; Guang, Zhang Guo

Author_Institution

Shanghai Jiaotong Univ., China

fYear

1995

fDate

18-21 Sep 1995

Firstpage

655

Lastpage

657

Abstract

Both clinical studies and animal experiments have shown that the broken-bone curing film, made of fluorocarbon electret materials, may promote the healing effect on fresh fracture, delayed union and nonunion cases. In order to study the charging mechanism of fluorocarbon electret materials, the authors adopted an approximate sawtooth conformation and the CNDO/2 method in quantum chemistry. The molecular electrostatic potentials of FEP, PTFE, PE and PEP have been calculated. It can be seen that the electret performance and stability of fluorocarbon materials are much better than that of hydrocarbon materials

Keywords

dielectric devices; electrets; electrostatic devices; electrostatics; quantum chemistry; CNDO/2 method; approximate sawtooth conformation; broken-bone curing film; charging mechanism; delayed union fracture; fluorocarbon electret materials; fresh fracture; molecular electrostatic potential; nonunion fracture; performance; quantum chemistry; stability; Animals; Bonding; Chemistry; Dielectric materials; Electrets; Electrostatics; Hydrocarbons; Pharmaceuticals; Polymers; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Electronics Insulation Conference, 1995, and Electrical Manufacturing & Coil Winding Conference. Proceedings

Conference_Location

Rosemont, IL

Print_ISBN

0-941783-15-4

Type

conf

DOI

10.1109/EEIC.1995.482511

Filename

482511