Hydrophobicity and Surface Microstructure Changing Regulations of HTV Silicone Rubber Under Corona Accelerated Aging

This paper built a constant temperature and humidity corona aging platform to explore relation between hydrophobicity and the surface micro-structure of high-temperature vulcanized silicone rubber. The hydrophobicity /recovery test, Fourier Transform infrared spectroscopy (FTIR), Trap density, trap energy level test and SEM test were applied to analysis the surface structure and the surface element distribution. The mechanism of corona aging and hydrophobicity loss and recovery is further discussed.