摘要
研究了聚乙烯及其改性聚乙烯在不同实验条件下的吸水特性。测定了在交、直流电场下吸水后实验样品的空间电荷分布。结果发现 ,尽管适量的EAA加入使聚乙烯的吸水率增加 ,但却可以间接地抑制聚乙烯中空间电荷的形成。解释了在两种不同极性的直流电场实验时吸水率差异的原因 。
A property of water absorbing in polyethylene and modified polyethylene is studied under the different conditions.The distribution of space charge in samples after water absorbing is determined under ac and dc electrical fields.The result finds that a fit content of ethylene acrylic acid(EAA) copolymer can inhibit the formation of space charge indirectly,although EAA makes water absorbing increase.In this paper,the differeces of mechanisms,water into polyethylene,are proposed under several experimental conditions.
出处
《电工技术学报》
EI
CSCD
北大核心
2002年第6期68-71,18,共5页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目 (5 97770 0 1)
