中文摘要：

通过衰减全反射（attenuatedtotal reflection,ATR）红外光谱分析与开路热刺激放电（thermally stimulated discharge,SD）电流、原位实时电荷TSD和电荷等温衰减的测量,研究了氟气对孔洞聚丙烯（PP）膜的氟化改性及氟化改性对其驻极性能的影响.研究结果表明：尽管在负压状态且较低的氟气分压及较低的反应温度（约60℃）和较短的反应时间（约15min）下,氟气能有效地氟化孔洞PP膜,更易于氟化预氧化的孔洞PP膜,氟化改性的孔洞PP膜,尤其是预氧化后的氟化改性膜的电荷储存热稳定性较原膜得到显著的改善.

英文摘要：

Fluorination modification and electret properties were studied on the cellular polypropylene （PP） films modified by gaseous fluorine by attenuated total reflection （ATR） infrared analysis and the measurment of open-circuit thermally stimulated discharge （TSD） current, in situ TSD charge and isothermal charge decay. The results showed that the PP cellular films, especially the preoxidized ones, can be effectively fluorinated by gaseous fluorine, and that charge storage thermal stability of the fluorinated films, especially the fluorinated preoxidized ones, is significantly improved compared with that of the virginal PP film, even under conditions of negative pressure with a low partial pressure of gaseous fluorine, low reaction temperature about 60℃ and short reaction time of 15 min.