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- W2945762065 endingPage "e01703" @default.
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- W2945762065 abstract "Radiation shielding composites based on polyimide and Bi2O3 were synthesized. Surface and physical-mechanical properties of polyimide/Bi2O3 composites were studied. Bi2O3 particles were modified by polymethylphenylsiloxane for the uniform distribution of filler in composites. This paper presents data on the production of composites in two ways: hot- and cold-pressing. The hot-pressing method for the synthesis of composites is preferable compared to the cold-pressing method (the density increases by 10–12%, and the Vickers microhardness by 10–20%). The results show that the introduction of Bi2O3 significantly increases the thermal stability of the composites. At 680 °C, a polymer composite containing 10 wt% Bi2O3 retains 9.7% of its mass, and at 60 wt% Bi2O3, retains 58.4%. The radiation-protective characteristics of the composites with respect to gamma radiation were evaluated by experimental and theoretical methods. High radiation-protective characteristics of the composites have been established in the gamma-quanta energy range of 0.1–1 MeV." @default.
- W2945762065 created "2019-05-29" @default.
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- W2945762065 date "2019-05-01" @default.
- W2945762065 modified "2023-09-30" @default.
- W2945762065 title "Synthesis and radiation shielding properties of polyimide/Bi2O3 composites" @default.
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- W2945762065 doi "https://doi.org/10.1016/j.heliyon.2019.e01703" @default.
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