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.
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