Calculation of bulk etch rate’s semi-empirical equation for polymer track membranes in stationary and dynamic modes
One of the most urgent and extremely social problems in environmental safeties area in Kazakhstan is providing the population of all regions of the country with quality drinking water. Development of filter elements based on nuclear track-etch membranes may be considered as one of best solutions this problem. The values of bulk etch rate and activation energy were calculated in view the effect of temperature, alkaline solution concentration as well as stirring effect. The semi-empirical equation of the bulk etch rate for PET track membranes was calculated. As a result of theoretical and experimental studies a semi-empirical equation of the bulk etch rate VB=3.4∙1012∙C2.07∙exp(-0.825/kT) for 12 microns PET film, irradiated by ions 84Kr15+ (energy of 1.75 MeV/nucleon) at the heavy ion accelerator DC-60 in Astana branch of the INP NNC RK, was obtained.
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