METHOD OF PREPARING A FILTER ELEMENT ABSORPTIVE FOR CS

摘要

The invention discloses a preparation method for a filter element capable of swiftly and high efficiently absorbing Cs, including the following procedures: modifying a substrate material with ammonium phophomolybdate; spinning a filament from the modified substrate material and molding the spinned filament to a filter element; coating ammonium phophomolybdate on the surface of the filter element; and implementing an aging and stabilization process. The filter element prepared by this invention exhibits an excellent water permeability, oxidization resistance, long-term immersion at water temperatures 100 °C, radiation-proof decomposition, stable absorption, swift inspection, high efficiency and precision; stable Cs measurement is not needed to confirm the absorption rate.