A. G. Chmielewski, M. Harasimowicz
Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland
The influence of gamma and electron radiation on nanofiltration (NF) and hyperfiltration (HF) membranes has been studied and the changes of their transport properties have been determined at different doses. Samples of NF and HF thin-film composite (flat) membranes with semipermeable layer made of polymers of different composition were irradiated with doses in the range 0.005-40 kGy using the external 60Co source or by immersion in a solution containing 134Cs, and by using 13 MeV electron beam from a linear accelerator. For each membrane the values of characteristic absorbed doses, AD1, and AD2 have been determined.