Current Status of Research on Polymer Matrix Composites for Tritium Protection
Traditional tritium-resistant protective materials are usually made of ceramics,glass,metals,etc.,which greatly limit their application scenarios as such materials are mostly rigid.Polymer materials,on the other hand,are long chain-like molecules composed of many repeating units,and this long chain structure makes them flexible and stretchable in the direction of the chain axis,and thus they have been widely used in many fields.The most effective improvement of polymer-based gas barrier materials is the introduction of inorganic nanoparticles into the material matrix to extend the permeation path of gases in the composite matrix thereby improving the gas barrier properties of the composites.According to the gas permeation theory,the shape of the added inorganic nanoparticles and their distribution inside the matrix have an effect on the gas barrier performance of the composite material.When the shape of the filler is a two-dimensional sheet,it forms a greater obstacle to the gas permeation process in the matrix,and the permeation path of the gas will be longer and more zigzagging,thus playing the role of enhancing the gas barrier performance of the composite material.And the usual methods to build the distribution structure are layer-by-layer assembly,spin-coating method,electrostatic spinning method,electrostatic force assembly and so on.
gas barrierpolymer-based materialtritium protection
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