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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >CONDUCTION AND CHARGE-INJECTION IN POLYPROPYLENE FILMS AGED BY CORONA DISCHARGE WITH STREAMERS
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CONDUCTION AND CHARGE-INJECTION IN POLYPROPYLENE FILMS AGED BY CORONA DISCHARGE WITH STREAMERS

机译：用电晕剂排出的电晕老化过的聚丙烯薄膜的导电和电荷注入

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The nature of the surface plays a critical role in the charging ability and the insulating character of insulating materials. By submitting the polymer (for instance polypropylene) to corona discharges with streamers, the corona-activated species change the chemical and morphological properties of the surface. The physico-chemical properties had previously been investigated by electron-micrography and infrared absorption spectroscopy, and both techniques have clearly shown that nodules and crystallites of oxidized constituents of the polymer appear on the surface. By using both surface potential decay and return voltage analysis, the present work will be shown to reveal a significant correlation between the physico-chemical properties of the treated polymer and the transparency of the surface to charges deposited on it by a direct current corona. Whilst the voltage of charged untreated samples decays rapidly and substantially, it decays less, and less quickly, for treated samples. Conversely, whilst the return voltage for untreated samples is hardly measurable, it is quite appreciable for treated samples. These observations cannot be explained in terms of one-dimensional charge transfer models but their interpretation may be based on the defects mentioned above, which modify the local field on the sample during charge deposition. [References: 13]
机译：表面的性质在绝缘材料的充电能力和绝缘特性中起着至关重要的作用。通过使聚合物（例如聚丙烯）经受流光放电，电晕活化的物质会改变表面的化学和形态特性。先前已经通过电子显微术和红外吸收光谱法研究了其理化性质，并且两种技术都清楚地表明，聚合物的氧化成分的结节和微晶出现在表面上。通过同时使用表面电势衰减和返回电压分析，将显示本工作揭示了处理过的聚合物的物理化学性质与表面对直流电晕沉积在其上的电荷的透明度之间的显着相关性。尽管带电的未处理样品的电压迅速且显着衰减，但对于处理过的样品，其衰减越来越小。相反，虽然未经测量的样品的返回电压几乎无法测量，但对于经处理的样品来说却相当可观。这些观察不能用一维电荷转移模型来解释，但是它们的解释可能基于上述缺陷，这些缺陷会在电荷沉积过程中改变样品的局部场。 [参考：13]

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