电老化聚乙烯的热激电流和热释光研究  

TSC and TL Studies on Polyethylene Aged by Electrical Stress

作　　者：王金巧[1] 雷清泉[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150040

出　　处：《哈尔滨理工大学学报》2001年第1期1-4,共4页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金项目!(59977003)

摘　　要：聚乙烯（ＰＥ）样品在５０ｋＶ／ｍｍ的交流电场下老化不同时间，用联合谱仪同时测量了老化样品的热激电流（ＴＳＣ）和热释先（ＴＬ）．测试结果显示：空间电荷随着老化时间的增加而增加．老化不仅增加了ＰＥ样品中ｙ，β，ａ松驰区的陷阱和发光中心的浓度，而且也增加了β和ａ松驰区的陷阱深度．Polyethylene (PE) samples were aged under an ac stress of 50 kV/mm for different times. Thermally stimulated current (TSC) and Thermoluminescence (TL) were simulataneously detected by a United Spectrum instrument. The test results show that the space charges in the samples increase with aging time. Aging not only increases the densities of traps and luminesscence centers (LC) in y, g and a relaxation regions of PE sample, but also does trap depths inβ and a relaxation regions.

关 键 词：空间电荷 热激电流 热释光 聚乙烯 电老化 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] TQ317.6