聚合物中的辐射效应

Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics Pub Date : 1989-07-03 DOI:10.1109/ICSD.1989.69243

R. Fouracre, H. M. Banford, X. Cao, H. Wang, D. Tedford

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引用次数: 1

摘要

已经开展了一项研究计划，其中将材料暴露于高达2毫戈瑞剂量水平的辐照下。这表示在材料的使用寿命期间预期的暴露量。将环氧树脂和聚酰亚胺薄膜样品暴露在Co源的伽马射线中。在辐照前后对所有样品进行了热激放电电流(TSDC)测量。环氧树脂的结果可以解释为在辐照过程中产生的移动离子和未反应的硬化剂或树脂的交联。聚酰亚胺的结果与空间电荷限制传导一致。

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Radiation effects in polymers

A research program has been undertaken in which material is exposed to irradiation up to dose levels of 2 MGy. This represents the exposure anticipated over the lifetime of the material. Samples of epoxy resins and polyimide film were exposed to gamma rays from a Co source. Measurements of thermally stimulated discharge currents (TSDC) were made on all samples both before and after irradiation. The results for the epoxy resins may be explained in terms of the creation of mobile ions and the cross-linking of either unreacted hardener or resin during irradiation. Results for polyimide are consistent with space-charge-limited conduction.<>

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Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics

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