، صفحه 0-0 (1)

عنوان دوره: اولین دوره بین المللی و بیست و هشتمین دوره ملی (1400)

Polycarbonate is an engineering plastic which is used in medical products such as dialysis filters. One of the important features seen in the radiation sterilization of the filters is the effect of radiation on their polycarbonated bodies. In this work the effect of gamma radiation (60Co) and electron beam on the physico-chemical properties of polycarbonate has been investigated at the sterilization dose range (15, 25 and 37 kGy). The results of FTIR analysis and mechanical properties were similar for both types of radiation sources in all absorbed doses, demonstrating no significant changes occur in the chemical structure of polycarbonate after irradiation. According to the results of colorimetric analysis, the electron beam-irradiated samples had lower yellow index than the gamma-irradiated samples. This minor colour change also decreases over time when the samples are stored in a dim environment. From the results, sterilization of these dialysis filters is suggested by electron beam.

Polycarbonate؛ Sterilization؛ Dialysis filter؛ Gamma؛ Electron Beam