Preparation of stable dispersion from ceramic polishing waste and its application as a multifunctional additive for coatings

This study reports an approach to reutilize ceramic polishing waste as a multifunctional additive for coatings. A stable aqueous dispersion of the ceramic polishing waste was prepared with ceramic polishing waste, water, and an appropriate dispersant. The process of preparation was investigated by particle size, dynamic viscosity and XRD analysis. Moreover, a series of coatings containing various stable dispersions, consisting of ceramic polishing waste, resin, and other additives, were made for conducting the contrast ratio, the hardness, the adhesion power, the film bending test, the scrub resistance and the corrosion resistance test. The test results showed that as a multifunctional additive for coatings, the dispersion from ceramic polishing waste added can significantly enhance the properties of polymer film and the white paint film. However, the optimum addition amount of the dispersion varies with the types of polymers and white paints.