Liquid Metal Based Stretchable Radiation Shielding Film

Abstract

We reported a stretchable and flexible radiationshielding film based on roomtemperature liquid metal. Conceptual experiments showed that the liquid metal based printing technology can achieve an ultrathin flexible radiationshielding film with a thickness of 0.3 mm. Moreover, the yield strength and ultimate strength of the liquid metal film appear much better than those of a conventional leadparticlecontaining radiationshielding material. In order to evaluate the radiationshielding performance of the liquid metal material, Xray radiation experiments to compare the liquid metal film and conventional leadparticlebased shielding material under different stretching conditions were performed. The results indicate that the liquid metal shielding film could achieve a certain radiationshielding performance. Furthermore, because of the screenprinting properties of liquid metal, a lowcost Xray mask method using a liquid metal selective radiationshielding film was also studied, which could serve as a highly efficient and practical method for the medical Xray shielding applications or semiconductor lithography industry.