Characterization And Micro Mechanical Properties Of Synthesized Polysiloxane Coating On Steel Substrate

Abstract

The modern automobile maybe a grand assemblage of components made up of a range of materials. Several of those components have a protective coating applied to improve the looks or offer further sturdiness to the substrate. In many coating systems, the uppermost layer is a clear coating (ranging between 5–50 µm in thickness) which not only protects the underlying layers or substrate from chemical and UV degradation, but also provides protection from mechanical damage that can result in surface scratches. Surface properties of polysiloxane coatings are critical to their application in the many fields, which require long-term protection and aesthetics. In this work, synthesized polysiloxane coatings by spray coatingoces prs. Morphology analysis and elements present in the coatings were analyzed by SEM/EDS. Surface roughness and microhardness properties were tested using surface profilometer and Vickers hardness tester. The morphology analysis shows that the dispersion of polysiloxane is uniformly throughout the substrate. The minimum surface roughness of 0.476 µm was obtained. The microhardness value has increased to 242% compared to steel substrate due to the presence of polysiloxane.