On the mechanism of charge transport in low density polyethylene
On the mechanism of charge transport in low density polyethylene
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DOI：
10.1063/1.4997941
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发表时间：
2017-08
影响因子：
3.2
通讯作者：
A. K. Upadhyay;C. Reddy
中科院分区：
文献类型：
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作者：
A. K. Upadhyay;C. Reddy
基于聚乙烯的聚合物绝缘子由于其相对于常规绝缘材料的固有优点而越来越多地用于电力工业。具体来说，现代电力电缆几乎都是用这些材料制成的，取代了大量浸渍的油纸电缆技术。然而，对于超高直流电压应用，这些聚合物电缆的使用受到不理解的电荷传输和积累的阻碍。传统的导电机制（Pool-Frenkel，Schottky等）不能跟踪低密度聚乙烯中的高场电荷传输，低密度聚乙烯本质上是半结晶的。到目前为止，人们的注意力主要集中在材料的非晶区域。在本文中，作者提出了一种新的机制，在低密度聚乙烯的导电，它可以成功地跟踪实验结果。作为一个含义，一个新的，实质性的关系建立的电导率，可以有效地用于了解导电和击穿的多晶硅…
Polyethylene based polymeric insulators, are being increasingly used in the power industry for their inherent advantages over conventional insulation materials. Specifically, modern power cables are almost made with these materials, replacing the mass-impregnated oil-paper cable technology. However, for ultra-high dc voltage applications, the use of these polymeric cables is hindered by ununderstood charge transport and accumulation. The conventional conduction mechanisms (Pool-Frenkel, Schottky, etc.) fail to track high-field charge transport in low density polyethylene, which is semi-crystalline in nature. Until now, attention was devoted mainly to the amorphous region of the material. In this paper, authors propose a novel mechanism for conduction in low density polyethylene, which could successfully track experimental results. As an implication, a novel, substantial relationship is established for electrical conductivity that could be effectively used for understanding conduction and breakdown in poly...