MULTILAYERED RADIATION SHIELDING THIN-FILM COMPOSITE MATERIALS MADE BY UNIFORM OR MULTI-SIZED NON-LEADED TUNGSTEN PARTICLES ON WHICH POLYMERS WERE SYNTHESIZED FOR UNIFORM DISPERSION OF THE PARTICLES IN THE SAME POLYMER OR COMPATIBLE POLYMER

摘要

The present invention relates to a multilayer radiation-shielding material having a maximized shielding function, and a method for producing the same. More specifically, a polymer chain is polymerized on a surface of a metal powder (tungsten) having multiple size distributions with a radiation-shielding function. The same is mixed with an identical polymer resin or a polymer resin having miscibility, so tungsten particles may be uniformly dispersed. Moreover, there is no pin hole, and a shielding material like the same is laminated in a multilayer structure or pasted with a tungsten sheet, so a radiation-shielding function is maximized through a lamination structure without using a toxic material such as lead.