Performances of Polyimide Film # 1
It can be resistant high temperature, it can be decomposed by over 500℃. Polyimide composed by Biphendianhydride and ursol can only be decomposed by over 600 ℃
It can resist low temperature and will not be embrittlement by -269 ℃ in liquid helium.
It has high mechanical performance, with mechanical performance of Polyzoene Polyimide 250 Mpa and of Biphenyl Polyimide 530 Mpa.
It usually does not dissolved in the organic solvent , It can resist sparse acid.
It can retain 90% of its performance after high-intensity radiation.
The dielectric constant is around 3.4, dielectric strength is around 100-300 KV/mm, volume resistivity is 10 17Ω.cm, dielectric loss is 10-3
With very low smoke rate , it release little smoke Under an extremely high vacuum.
It is nontoxic. Some polyimide has good biocompatibility .