自由基清除剂对电老化聚乙烯中空间电荷分布的影响  

The effect of Free Radical Scavenger on space charge distribution in polytethylene during electrical aging

作　　者：尹毅[1] 陈炯[1] 肖登明[1] 

机构地区：[1]上海交通大学电气工程系,上海200030

出　　处：《苏州市职业大学学报》2004年第3期63-65,共3页Journal of Suzhou Vocational University

基　　金：国家自然科学基金(50128706)。

摘　　要：向低密度聚乙烯中添加自由基清除剂能够有效地抑制电老化,并且改变了电老化过程中聚乙烯中的空间电荷分布,直流预压和短路过程中的空间电荷量随老化时间呈线性增长。本文结合自由基清除剂在其他老化形式中的化学反应机理,详细地讨论了自由基清除剂对聚乙烯电老化的抑制以及对聚乙烯电老化过程中的空间电荷分布的影响。Electrical aging of polyethylene can be inhibited effectively by incorporation of a free radical scavenger (FRS), and then the space charge distribution in the polyethylene sample is improved significantly. Under DC stress and short-circuited case, the total amount space charge was linearly increased with aging time. Considering to the degradation of polyethylene under other types of stresses, the effects of the FRS of reducing the production of space charge and inhibiting electrical aging in polyethylene were discussed.

关 键 词：自由基清除剂 空间电荷 聚乙烯 电老化 

分 类 号：TM201.3[一般工业技术—材料科学与工程]