Degradation performance of long-life satellite thermal coating and its influence on thermal character

Analyze the complex space radiation environment of the thermal coatings, degradation models of the optical properties of the thermal coatings due to the space environment interaction are proposed on the basis of experimental results. The degradation of several common thermal coatings such as S781, OSR and F46 are forecasted for 30 years in space environment. With a geosynchronous orbit satellite as example, paper analyzes the changes of satellite infrared radiation characteristics which due to the degradation of thermal coating.