The addition of organoclay to a polypropylene-rubber (PP-rubber) blend, primarily introduced to compatibilise the immiscible polymer blend, invokes contrasting dielectric and charge dynamic behaviour depending on the filler loading level. The authors report that at 0.5 wt.% loading, the organoclay decreases the DC conductivity, causes no significant dielectric losses, makes no significant difference to the space charge results compared to the unfilled system, and increases the reproducibility of the breakdown strength results, and hence the reliability of the material. These somewhat surprising results, contrasted by measurements of samples with 2.5 and 5 wt.%, lead us to conclude that trace amounts of organoclay improve the otherwise immiscible polymer blend making organoclay a suitable additive for HVDC applications.

将有机粘土添加到聚丙烯-橡胶（PP-橡胶）共混物中，主要是为了使不混溶的聚合物共混物相容而引入的，这取决于填料的用量而引起不同的介电和电荷动力学行为。作者报告说，在0.5 wt。％的负载量下，有机粘土与未填充的系统相比，降低了直流电导率，没有引起明显的介电损耗，对空间电荷结果没有显着影响，并且提高了击穿强度结果的可重复性，并且因此材料的可靠性。这些令人惊讶的结果，与2.5％和5 wt。％的样品测量结果相反，使我们得出结论，痕量的有机粘土改善了原本不混溶的聚合物共混物，使有机粘土成为适用于HVDC应用的添加剂。