Preparation and Radiation Protection Property Study of Lead-free Protective Fabric.

Preparation method and radiation protection property of lead-free protective fabric were discussed. The metal tungsten powder was modified by polydopamine, the tungsten powder surface was self-assembled by gadolinium ions under acidic condition. The tungsten/gadolinium oxide functional powder with core-shell structure were prepared by high temperature calcination. Plain cotton fabric was used as base fabric, coated fabric was prepared by dispersion of tungsten/gadolinium oxide powder in polyurethane resin. The results showed that the core-shell structure tungsten/gadolinium oxide coating with the concentration of 0.2 g/L dopamine and 0.3 mol/L gadolinium nitrate has a protective efficiency of 60% against the incident energy of 60 keV~100 keV. It is considered that tungsten/gadolinium oxide has the synergistic protective function, the prepared fabric has the characteristics of lead - free, lightweight and efficient. [ABSTRACT FROM AUTHOR]