本文以乙烯(E)-乙酸乙烯酯(VA)共聚物(EVA)共混到聚乙烯中,研究了不同 VA 含量对聚乙烯共混物的注入电荷和摩擦带电现象.实验发现,聚乙烯与适当比例的 EVA 共混后能明显减少注入电荷,消除摩擦带电现象.光电导频谱测量证明,添加 EVA 能减少聚乙烯中的深陷阱.本实验为研制超高压直流电力电缆的绝缘材料,开辟了新的方向. In this paper, ethylene (E) -vinylacetate (EVA) was blended into polyethylene, and the injection charge and triboelectric charge of polyethylene blends with different VA contents were studied. It was found that polyethylene The appropriate proportion of EVA blends can significantly reduce the injected charge and eliminate the phenomenon of triboelectric charge.The measurement of photoconductive spectrum proves that the addition of EVA can reduce the deep trap in polyethylene.In this experiment, for the development of the insulation material of EHV DC power cable, New direction