Electrical Performance of Silicone Rubber/SiO_2 Nanocomposites under Low Temperature

摘要

This paper investigated the electrical tree growth process in SiR/SiO_2 nanocomposites under the condition of low temperature. The experimental results reveal that both nanoparticles and low temperature environment have a significant impact on the electrical tree growth characteristics of SiR/SiO_2 composites. It is suggested that there are both branch tree and bush tree when the temperature is -30°C or -60°C, but only pine tree when the temperature is -90°C. It is also found that tree structure is closely related to the crystalline state.