Preparation and Properties of Superhydrophobic Composite Microspheres with Fluorescent Mosquito-Like Compound Eyes

Abstract— In this study, polysiloxane microspheres were prepared by silane hydrolysis condensation method, and polysiloxane microspheres with fluorescent properties were obtained after calcination. SiO₂ nanoparticles were synthesized by the template method and composited with fluorescent polysiloxane microspheres through surface modification, and superhydrophobic composite microspheres with fluorescent properties were successfully prepared. The composites constructed multi-scale micro-nanostructures with morphology and structure similar to mosquito compound eyes. The structure and properties of the composite microspheres were investigated using characterization tools such as Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and contact angle tester. The results showed that the SiO₂ nanoparticles were successfully compounded with polysiloxane microspheres and formed a stable structure; the surface of the composite microspheres showed superhydrophobicity while retaining the fluorescent properties of the polysiloxane matrix. This fluorescent superhydrophobic composite with a bionic compound eye structure has broad application prospects in the fields of optical devices and functional coatings, etc.