Effect of Electron Irradiation on Properties of RTV560 Silicon Rubber

High voltage terminals are enclosed with RTV560 silicone rubber. Space travelling wave tubes are exposed in irradiation environment. As one organic elastomer, silicone rubber is degraded by the radiation. In the paper, effect of electron irradiation on properties of RTV560 silicone rubber was investigation. The used electrons have an energy range 10~100 keV, and the irradiation fluence ranges from 1.0×10
⁶
rad to 1.0×10
⁷
rad. At last, roughness, hardness, DTA and TGA were measured and analyzed for all samples.