Abstract
This study explores the radiation characteristics of carbon nanotubes-based polymer composite for high-energy proton shielding applications in aerospace industry. Nanocomposites of single-walled carbon nanotubes (SWCNTs) dispersed in polydimethylsiloxane (PDMS) were tested under monoenergetic proton beams. The stopping ranges of the nanocomposite (PDMS/SWCNT) were calculated and compared to those of the pure PDMS and aluminum (Al). The results showed that the PDMS/SWCNT nanocomposite provided weight advantage compared to the control (PDMS) at energies higher than 53.59MeV. At 105MeV, PDMS/SWCNT was 3.11% and 20.91% lighter than pure PDMS and Al respectively. In order to evaluate the effects of the SWCNTs upon exposure to high-energy protons, the stopping ranges for PDMS/SWCNT and pure PDMS were simulated and the results were compared to those obtained from the experiments.
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