Abstract
The simple, cost effective, highly efficient and self-protective siloxane coating was prepared by dispersing the praseodymium oxide in a hybrid sol–gel network. The embedded nanoparticles were varied from 0·25 to 1 wt-%, and an optimum percentage was carried for further studies. The corrosion resistance of the siloxane coatings was studied by salt spray technique and electrochemical impedance spectroscopy. Surface morphology was studied to explain the arrangement of nanoparticles on the surface of the coatings. The resulted SiO2@Pr6O11 core–shell was characterised by transmission electron microscopy. The above results revealed that the nanoparticles enriched silane could provide surpassing corrosion protection coatings compared to the unmodified silane films. This work presents an efficient anti-corrosive coating for the industrially significant stainless steel 304 (SS 304). This study had led to a better understanding factor influencing the anticorrosion performance and properties of anticorrosive coatings with embedded nanoparticles.
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