Comparison of Gamma Ray and Electron Beam Irradiation Effect on a Commercial Polycarbonate Used in Medical Equipments

Document Type : Original Article

Authors

1 Islamic Azad University Science and Research Branch, Faculty of Engineering, Tehran, Iran

2 Radiation Application Research Institute, Nuclear Science and Technology Research Institute, Atomic Energy Organization, P.O. Box:14395-836, Tehran, Iran

Abstract

Polycarbonate is an engineered plastic which is applied in producing medical products such as dialysis filters because of its transparency, hardness, thermal resistance and good dimensional stability. As the dialysis filters are applied on a large scale, their sterilization is preferred by radiation method. One of the important features seen in the radiation sterilization of the filters is the effect of radiation on polycarbonate applied in their bodies. So, we studied the effect of gamma radiation (60Co) and electron beam on the physico-chemical and mechanical properties of polycarbonate at the sterilization dose range (15, 25 and 37 kGy). The results of FTIR analysis, XRD and mechanical properties were similar for both types of radiation sources and demonstrated no significant changes in the chemical structure of polycarbonate after irradiation. The result of UV-Vis spectrum showed that adsorption occurs in irradiated samples at higher wavelengths. According to the results of colorimetric analysis, the electron beam-irradiated samples had a lower yellow index than the gamma-irradiated samples. This little colour change also decreases over time when the samples are storage in a dim ambiance. From the results, the sterilization of these dialysis filters is suggested by electron beam.

Keywords

References

  1.  

    1. C. Weckle, Polycarbonate Remains Proven and Preferred for Medical Applications, (Tech Briefs :Medical Desi Medicine, Second Edi. 2011. gn Briefs., MEdical Design Briefs, (2013. [Online]. Available: https://www.medicaldesignbriefs.com/component/content/article/mdb/features/17693
    2. B. P. Fairand, Radiation Sterilization for Health Care Products X-Ray, Gamma, and. Electron Beam, CRC, Boca Raton, 2002.
    3. R. L. Clough, K. T. Gillen, G. M. Malone, J. S. Wallace. Color formation in irradiated polymers. Radiat. Phys. Chem. 48 (5) (1996) 583-594.
    4. E. S. Araújo, H. J. Khoury, S. V. Silveira. Effects of gamma-irradiation on some properties of durolon polycarbonate. Radiat. Phys. Chem. 53 (1) (1996) 79-84.
    5. J. H. Golden, E. A. Hazell. Degradation of a polycarbonate by ionizing radiation. J. Polymer Sci. A 1 (5) (1963) 1671-1686.
    6. D. Sinha, K. L. Sahoo, U. B. Sinha, T. Swu, A. Fink, Gamma-induced modifications of polycarbonate polymer. Radiat. Effects Defects Solids 159 (10) (2004) 587-595.
    7. B. Jaleh, P. Parvin, N. Sheikh, F. Ziaie, M. Haghshenas, L. Bozorg. Evaluation of physico-chemical properties of electron beam-irradiated polycarbonate film. Radiat. Phys. Chem. 76 (2007) 1715-1719.
    8. T. Zhongfeng, Y. Chen, M. Wang. Specific properties improvement of polycarbonate induced by irradiation at elevated particular temperature. Radiat. Phys. Chem. 96 (2014) 171-175.
    9. K. Hareesh, S. Ganesh. 8 MeV electron induced changes in structural and thermal properties of lexan polycarbonate. Mater. Sci. Appl. 2 (2011) 1682-1687.
    10. K. Dawes, L. C. Glover, D. A. Vroom. The Effects of Electron Beam and Gamma Irradiation on Polymeric Materials, Physical Properties of Polymers. James E. Mark (ed.) Handbook, 2 ed., Springer Sci. 2007.
    11. F. Hacioğlu. Degradation of polycarbonate, bentonite, barite, carbon fiber and glass fiber filled polycarbonate via gamma irradiation and possible use of polycarbonate in radioactive waste management. PhD Thesis, Middle East Technical University, Ankara, Turkey, 2015.

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