Possibilities of the Investigations of the Thermal Parameters of the Polybutyl Methacrylate Siloxane Coatings with the Use of the Photothermal Radiometry

This article presents the results of theoretical and experimental investigations of thermal parameters of Polybutyl Methacrylate Siloxane (PBMA-siloxane) anticorrosion coatings by the use of the Photothermal Radiometry (PTR) method. The goal of the study was to investigate possibilities of application of this method for the thermal characterization of PBMA-siloxane coatings. Three different theoretical models of the PTR signal describing the two-layer system of the analyzed coatings deposited on a substrate have been discussed and investigated. The character of the experimental results was interpreted in the framework of the model that exhibits their best reproduction enabling the extraction of the thermal parameters of the coatings.