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

•Polyimide composites with nanolead have been synthesized.•Polyimide composites were irradiated with electrons with an energy of 1–5 MeV.•The effective range of electrons in polyimide composites was investigated.•Composites with nanolead have high radiation-shielding properties. The paper presents d...

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Bibliographic Details
Published in:Advances in space research 2022-11, Vol.70 (10), p.3249-3256
Main Authors: Cherkashina, N.I., Pavlenko, V.I., Noskov, A.V., Romanyuk, D.S., Sidelnikov, R.V., Kashibadze, N.V.
Format: Article
Language:English
Subjects:
Effective range
Electron irradiation
Polyimide
Polymer composite
Track membranes
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Summary:•Polyimide composites with nanolead have been synthesized.•Polyimide composites were irradiated with electrons with an energy of 1–5 MeV.•The effective range of electrons in polyimide composites was investigated.•Composites with nanolead have high radiation-shielding properties. The paper presents data on the resistance to electron irradiation of polyimide (PI) composite with nano-sized lead filler. PI composite with nano-filler were obtained on the basis of PI track membranes by electrochemical deposition of nano lead into the pores of track membranes. SEM-images, physical–mechanical and dielectric characteristics of PI composite with 70 wt% content of lead filler were examined. The composite was irradiated with 1–5 MeV electrons, and the maximum cumulative dose was 10 MGy. The effective range of an electron in a PI is greater than in a composite based on track membranes at the same initial electron energy: at E = 2 MeV - by 2.08 times, and at E = 5 MeV by 2.33 times.
ISSN:0273-1177
1879-1948
DOI:10.1016/j.asr.2022.07.051