Influence of electro-thermal aging on the space charges measurements in epoxy resins

ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI:10.1109/ICSD.2001.955534

A. Sylvestre, P. Rain, N. Raphoz, A. Khomsi, J. Gatellet

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引用次数: 2

Abstract

The role of space charges in the prebreakdown phenomena of polymers is commonly admitted and intensively studied. The behavior of space charges is quickly affected by aging and thus may lighten the influence of the various aging factors. The Laser Induced Pressure Pulse (LIPP) method has been mainly dedicated to the characterization of polyethylene materials submitted to DC voltage. Very few studies have concerned epoxy resins. The purpose of this study is to investigate how the LIPP method may be relevant in characterizing the aging under AC voltage and temperature of epoxy resins. This characterization may require the application of electrical fields and temperatures on the samples. However, it should not damage nor induce irreversible degradation of the tested samples whose aging should proceed. This possible degradation due to the measurements has first been studied using unaged samples submitted to various conditions of temperature, stress and duration of voltage application.

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电热老化对环氧树脂空间电荷测量的影响

空间电荷在聚合物预击穿现象中的作用已得到普遍承认和深入研究。空间电荷的行为受老化的影响很快，因此可以减轻各种老化因素的影响。激光诱导压力脉冲(LIPP)方法主要用于聚乙烯材料在直流电压下的表征。关于环氧树脂的研究很少。本研究的目的是探讨LIPP方法如何与表征环氧树脂在交流电压和温度下的老化有关。这种表征可能需要在样品上施加电场和温度。然而，它不应损坏或引起不可逆的退化的测试样品，其老化应进行。由于测量的这种可能的退化，首先使用未老化的样品提交到各种温度，应力和电压应用持续时间的条件下进行了研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)

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