Polyimide film used in satellite

    Artificial satellite has to go through the baptism of fire and the test of freezing. What kind of materials should be used to make the satellite to ensure that it can adapt to the environment of space and work normally? As a result, all materials are required to be as light as possible, followed by excellent strength, good ductility, and different thermal conductivity characteristics. Do you know what the golden materials on the spacecraft are? That's not gold, it's polyimide film, a kind of high-temperature electrical insulation material. It can be used for a long time in the air at 250-280℃, and it is also suitable for minus 200-300℃.