In this study, the particle reinforced epoxy composite with alumina and silica was considered to insulation material for the gas insulated switchgears (GIS). The single (alumina or silica) and mixed particle (alumina-silica) reinforced epoxy composites were fabricated to investigate the mechanical properties according to the content of the particles. The material properties of the alumina reinforced composites showed rapid decreasing behavior at the particle content of 40 wt% and slowly recovered. Whereas, the case of the silica did not show the severly decreased mechanical properties at the same particle content compare to the alumina. The mechanical properties of the mixed particle reinforced composites showed the increasing with the silica content and the effect of the particle reinforced epoxy composite system was evaluated to be greater for silica than alumina. Therefore, the proper use of mixing of alumina and silica particles was assessed to be effective in improving manufacturing and material properties in epoxy composite.

在这项研究中，采用氧化铝和二氧化硅的颗粒增强环氧复合材料被认为是用于气体绝缘开关设备（GIS）的绝缘材料。制备了单（氧化铝或二氧化硅）和混合颗粒（氧化铝-二氧化硅）增强的环氧复合材料，以根据颗粒的含量研究机械性能。氧化铝增强复合材料的材料性能在颗粒含量为40 wt％时表现出快速下降的行为，并且恢复缓慢。然而，与氧化铝相比，在相同的颗粒含量下，二氧化硅的情况没有显示出机械性能的严重降低。混合颗粒增强复合材料的机械性能显示出随着二氧化硅含量的增加而增加，并且评估了颗粒增强环氧复合材料体系对二氧化硅的影响大于氧化铝。因此，评估氧化铝和二氧化硅颗粒混合的适当使用对改善环氧复合材料的制造和材料性能是有效的。