Abstract
Single-wall carbon nanotube (SWNT)/poly(methyl methacrylate) (PMMA) composites were fabricated and exposed to ionizing radiation for a total dose of 5.9 Mrads. Neat nanotube paper and pure PMMA were also exposed for comparison, and nonirradiated samples served as controls. A concentration of 0.26 wt% SWNT increased the glass transition temperature (T g), the Vickers hardness number, and modulus of the matrix. Irradiation of the composite did not significantly change the T g, the Vickers hardness number, or the modulus; however, the real and imaginary parts of the complex permittivity increased after irradiation. The dielectric properties were found to be more labile to radiation effects than mechanical properties.
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Muisener, P.A.O., Clayton, L., D’Angelo, J. et al. Effects of gamma radiation on poly(methyl methacrylate)/single-wall nanotube composites. Journal of Materials Research 17, 2507–2513 (2002). https://doi.org/10.1557/JMR.2002.0365
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DOI: https://doi.org/10.1557/JMR.2002.0365