摘要
本文讨论了聚丙烯驻极体恒流电晕充电期间电荷的建立。分析了恒流电晕充电后,聚丙烯驻极体的开路TSD(Thermally Stimulatod Dischar-ge)电流谱及充电后注入样品电荷的平均电荷重心的迁移规律和恒压电晕充电相比较,揭示了恒流充电能将更多的电荷注入聚丙烯体内。因此,恒流电晕充电能明显地改善聚丙烯驻极体的电荷贮存稳定性。
The surface potential build-up with constant current corona charging for polypropyrene electrets was investigated. Comparision of experimental results for open-circuit TSD current spectra and shift of mean charge depths between constant voltage and constant current corona charging was also discussed. it is noticed that constant current corona charging causes more charge to be injected into the bulk of PP and the charge storage stability can be improved significantly by means of constancurrent corona charging.
出处
《功能材料》
EI
CAS
CSCD
1993年第3期226-230,共5页
Journal of Functional Materials
关键词
聚丙烯
恒流
电晕充电
驻极体
重心
polypropyrene
constant current
corona charging
mean charge dapths
