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

Researchers found that self-embrittling composite coatings can be tailored by adjusting the MMA/MAA ratio in a copolymer to effectively decontaminate radioactive surfaces.

A composite coating with self-embrittlement was prepared using SiO₂-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).

Event Tip: Anticorrosive Coatings

What principles determine the corrosion of metals and how can protective coatings help to prevent corrosion? In this tutorial, the basics of electrochemical processes will be explained, and typical ingredients and formulation features of corrosion protection coatings will be presented and discussed. We will answer these questions online on 05 Sep 2024 in the EC Short Course “Introduction to Anticorrosive Coatings”.

Journal of Coatings Technology and Research, Volume 21, pages 655–663, (2024)