Effect of electron irradiation on polyimide composites based on track membranes for space systems

• Polyimide composites with nanolead have been synthesized. were irradiated electrons an energy of 1–5 MeV. The effective range in polyimide was investigated. Composites high radiation-shielding properties. paper presents data on the resistance to electron irradiation (PI) composite nano-sized lead filler. PI nano-filler obtained basis track membranes by electrochemical deposition nano into pores membranes. SEM-images, physical–mechanical and dielectric characteristics 70 wt% content filler examined. MeV electrons, maximum cumulative dose 10 MGy. a is greater than based at same initial energy: E = 2 - 2.08 times, 5 2.33 times.