Deformation behavior features of composite of polystyrene with cesium sulfate filler during ultraviolet and X-ray irradiation

A noticeable increase in radiation resistance of polystyrene upon the addition of cesium sulfate particles is found. This is due to the fact that the fragments of polystyrene molecules fixed by filler particles do not diverge at radiation breakage of interatomic bonds, keeping a high possibility of recovery thereof. When studying X-ray luminescence of this composite, it is found that its deformation results in the decrease in the proportion of luminescence of organic luminophores, which indicates direct involvement of contact areas between the particles and molecules in the transfer of energy of electronic excitations according to the Dexter or Frerichs mechanism.