In this study,the hydrolysis behavior of four types of polymer coatings,including three polyurethanes and one epoxy resin were evaluated with the assistance of Fourier-transform infrared spectroscopy,solid-state nuclear magnetic resonance,thermogravimetric analysis,and dynamic mechanical analysis.The results demonstrated that the polyether-based polyurethane coating exhibited superior water resistance and minimal impact on its chemical structure due to hydro-lysis.However,the incorporation of ceramic particles can significantly accelerate the hydrolysis,resulting in an increase in water absorption and a decrease in coating performance.Both polyester-based polyurethane and epoxy resin coatings exhibited poor water resistance under the same conditions,and a chemical degradation might occur,resulting in an in-crease in storage modulus.
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