Title :
Study in the charging-mechanism of fluorocarbon electret materials
Author :
Tai, Wang Shou ; Guang, Zhang Guo
Author_Institution :
Shanghai Jiaotong Univ., China
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;
Conference_Titel :
Electrical Electronics Insulation Conference, 1995, and Electrical Manufacturing & Coil Winding Conference. Proceedings
Conference_Location :
Rosemont, IL
Print_ISBN :
0-941783-15-4
DOI :
10.1109/EEIC.1995.482511
