| 电子束辐照后聚甲基丙烯酸甲酯的电荷特性 |
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| 引用本文： | 郑飞虎 张冶文 宫斌 陈玲燕 徐加强 王传珊. 电子束辐照后聚甲基丙烯酸甲酯的电荷特性[J]. 材料研究学报, 2005, 19(4): 431-436 |
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| 作者姓名： | 郑飞虎 张冶文 宫斌 陈玲燕 徐加强 王传珊 |
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| 作者单位： | [1]同济大学 [2]上海大学 |
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| 基金项目： | 国家自然科学基金 , 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 用电子束辐照的方法将电荷引入聚甲基丙烯酸甲酯中,研究了电子束辐照对样品电导率、介电常数的影响,以及电荷脱阱对样品的破坏行为.结果表明,电介质的击穿并不总是发生在电荷的注入过程中,也可以发生在空间电荷的脱阱过程中.同时探讨了注入电荷在样品内的输运情况和空间电荷脱阱对样品的破坏机理.
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| 关 键 词： | 有机高分子材料 空间电荷效应破坏 电导率 压力波法 电子束 |
| 文章编号： | 1005-3093(2005)04-0431-06 |
| 收稿时间： | 2004-08-26 |
| 修稿时间： | 2004-08-26 |
Characteristics of space charge in PMMA after electron beam radiation |
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| Zheng FeiHu;Zhang YeWen;Gong Bin;Chen LingYan;Xu JiaJiang;Wang ChuanShan. Characteristics of space charge in PMMA after electron beam radiation[J]. Chinese Journal of Materials Research, 2005, 19(4): 431-436 |
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| Authors: | Zheng FeiHu Zhang YeWen Gong Bin Chen LingYan Xu JiaJiang Wang ChuanShan |
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| Abstract: | Space charge was introduced into the PMMA (polymethyl methacrylate) samples by electron beam. The effect of electron beam on the conductivity and the permittivity of the PMMA sample were investigated, and the breakdown of the samples during charge detrapping was also studied. The experimental results show that not only space charge injection but its detrapping also makes samples breakdown. The dynamics of injected charges in the radiated PMMA samples and the mechanism of the breakdown resulted from the rapid discharge are discussed. |
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| Keywords: | organic polymer materials space charge breakdown conductivity PWP method electron beam |
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