T. Tanaka, K. Yokoyama, Y. Ohki, Y. Murata, Y. Sekiguchi, M. Goshowaki
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引用次数: 15
摘要
本文研究了LDPE/MgO纳米复合材料的发光起始和电树。试样的制备方法是将一根50 μ m φ和1 μ m r的钨针插入高压与地间距为0.4 mm的电介质中。用ICCD相机观察光发射，用光学显微镜检查树的形状。实验结果表明，纳米MgO填料的加入影响了纳米MgO材料的电树发光，而不是电致发光。也就是说，在0到1 phr范围内，随着填料含量的增加，树形起始的施加电压或电应力趋于增加。此外，由于纳米填料的加入，树的长度也缩短了。
High field light emission in LDPE/MgO nanocomposite
This paper deals with initiation of light emission and electrical trees in LDPE/MgO nanocomposite. Specimens were prepared in such a way that a tungsten needle of 50 mum phi and 1mumR was inserted into dielectrics with a spacing of 0.4 mm between high voltage and ground. Light emission was observed by an ICCD camera, and tree shapes were examined by an optical microscope. As a result, it was found that light emission originates from electrical trees rather than electroluminescence in our experiments and that initiation of electrical trees and light emission are affected by the addition of nano MgO fillers. That is, it was clarified that applied voltage or electric stress for tree initiation tends to increase, as filler content increases in the range of 0 to 1 phr. In addition, tree length is shortened due to inclusion of nano-fillers.
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