高能氩离子辐照聚酰亚胺时的能量沉积效应对光学吸收及电性能的影响  

Analysis of UV-visible absorption and conductivity in energetic Ar ion bombarded Kapton

作　　者：孙友梅[1] 李长林[1] 马峰[1] 刘刚[1] 徐荣辉[1] 权晶明 侯明东[1] 刘杰[1] 金运范[1] 

机构地区：[1]中国科学院近代物理研究所

出　　处：《核技术》1995年第10期584-586,共3页Nuclear Techniques

基　　金：国家和甘肃省自然科学基金

摘　　要：用２２．５ＭｅＶ／ｕ的高能氩离子辐照叠层聚酰亚胺（Ｋａｐｔｏｎ／ＰＩ）薄膜，对辐照样品的导电性测量及紫外可见光吸收分析表明，随单位体积中能量沉积的增加，薄膜的导电性增强，光吸收度增大，且光吸收边缘由近ＵＶ区向可见区移动．结果显示，单位体积中的电子能损效应在聚合物膜的体改性中起关键作用。A stack of polymide (Kapton/PI) films was irradiated with 22.5MeV/u high energy Ar-ions. The conductivity measurement and the ultraviolet-visible absorption spectra of the modified Kapton show that the conductivity and the absorbance increased and the absorption edge is gradually shifted from near UV to visible with the increasing of electronic energy loss in unit volume. It can be concluded that electronic energy loss plays a key role in polymer modification.

关 键 词：能量沉积 电性能 光学吸收 聚酰亚胺 氩离子辐照 

分 类 号：O633.22[理学—高分子化学] O631.34[理学—化学]