Anomalous thermally stimulated and transient currents in low density polyethylene

S. Datt, Ranjit J. Singh
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引用次数: 1

Abstract

An anomalous thermally stimulated current (TSC) flowing in the same direction as the charging current was observed in low-density polyethylene (LD-PE) thermoelectrets polarized at temperatures 20–90°C with fields ranging from 5–25 kV/cm. However, normal TSC was observed with thermoelectrets polarized with higher fields. Anomalous TSCs were considered to be caused by the injected homo space-charge and the partial blocking of a metal-polymer contact, A close relationship between the anomalous discharge current and the anomalous TSC has been observed.
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低密度聚乙烯中的异常热激电流和瞬态电流
在低密度聚乙烯(LD-PE)热电极体中,在20 ~ 90℃的温度下,电场范围为5 ~ 25 kV/cm,观察到与充电电流方向相同的异常热刺激电流(TSC)。然而,正常的TSC是用高场极化的热驻极体观察到的。异常TSC被认为是由注入的同属空间电荷和金属-聚合物接触的部分阻断引起的,异常放电电流与异常TSC有密切的关系。
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