Method for preparing tungstenic anti-radiation shielding film composite material through spin coating method

The invention provides a method for preparing a tungstenic anti-radiation shielding film composite material through a spin coating method, and belongs to the technical field of anti-radiation shielding material preparation.The method for preparing the ultrathin tungstenic composite material is the spin coating method including the two steps of sol preparation and film preparation, in the sol preparation step, a raw material is composed of, by mass, 65-75% of metal powder (industrial grade powder) and 25-35% of an organic additive (70-80% of terpilenol, 3-6% of ethyl acetate, 9-12% of ethyecellulose, 3-10% of glycerol and 2-4% of hydrogenated castor oil).The method is simple in preparation technology, the prepared film is made of the ultrathin tungstenic composite material, and the content of tungsten can be adjusted according to different requirements.The spin coating method can be applied to a component, having a shielding effect, in a medical CT machine.The film can be formed in a one-off mode, the process is simple, and cost is reduced.