Optical diffusers based on the novel fillers of polysiloxane@boehmite core–shell microspheres

Abstract In this study, optical diffusers based on polysiloxane@boehmite microspheres were successfully prepared by solvent-free UV curing process. Polysiloxane@boehmite microspheres had been synthesized via facile hydrothermal synthesis method. The microscope analysis revealed that the size of polysiloxane@boehmite microspheres focused on 6–7 μm in diameter and the shell thickness was about 700–900 nm. The optical properties of the novel diffusers based on polysiloxane@boehmite microspheres were also measured for the first time, and the results proved that the diffusers possessed suitable light transmittance, good diffusion capacity, and low incident angle dependence. When the concentration of polysiloxane@boehmite microspheres was up to 15 wt%, the diffusing properties of novel diffusers can exceed the optical diffusers on market. Thus, the novel microspheres can be widely used for preparing multifunctional diffusion materials such as touch-panel functions, monitors, military projectors, etc.