Preparation and performance study of the self-embrittle composite coatings for radioactive decontamination of surface layer of various materials

A composite coating with self-embrittlement was prepared using SiO 2 -modified 3-aminopropyltrimethoxysilane and a solution of random copolymer P(PMMA- co -PMAA- co -PTFEMA). The structures and properties of the composite emulsions were determined using Fourier transform infrared spectroscopy, thermogravimetry, X-ray diffractometry, and transmission electron microscopy. The results indicate that the self-embrittlement morphology of the coating can be controlled by adjusting the ratio of MMA/MAA in the random copolymer. Furthermore, the coating exhibits a good decontamination effect on simulated radioactive dust (doped with elemental K).