Improved self-healing performance of polymeric nanocomposites reinforced with talc nanoparticles (TNPs) and urea-formaldehyde microcapsules (UFMCs)

The present work reports the self-healing performance of epoxy based polymeric nanocomposite coatings containing different concentrations (1 and 3 wt%) talc nanoparticles (TNPs) modified with sodium nitrate (NaNO3), a fixed amount (5 urea-formaldehyde microcapsules (UFMCs) encapsulated linseed oil (LO). nanocomposites were developed, coated on polished steel substrates, their structural, thermal, characteristics investigated using various techniques. successful loading (~wt 10%) NaNO3 into TNPs, which can be ascribed to involvement physio-chemical adsorption mechanism, is validated proceeds without altering TNPs parent lamellae structure. performed tests elucidated that self-release corrosion inhibitor (NaNO3) from sensitive pH solution immersion time. In addition, release (self-healing agent) UFMCs in response external damage was found time-dependent process. superior inhibition protective wt% UFMCs/LO are proven electrochemical impedance spectroscopy (EIS) studies. A careful selection smart carriers, inhibitor, agent compatible matrix has enabled attain decent convincing efficiency 99.9% 99.5%, respectively, for 1 making them attractive many industrial applications.