Synthesis and Characterization of CaTiO3-Reinforced Chitosan Coatings for Enhanced Corrosion Resistance
by HAVADER Editör Ekibi
We've all seen how fast a metal object left by the sea rusts — salt water is a real enemy to metals. This study builds a protective layer against that enemy using chitosan, a natural material derived from crab shells, reinforced with calcium titanate.
Chitosan-based composite coatings modified with calcium titanate particles are examined for their microstructural characteristics and corrosion resistance. This study's goal was to prepare chitosan gels containing 0-2 wt% calcium titanate and determine how different filler levels affect coating homogeneity and corrosion resistance in a saline environment — in other words, to find which ratio gives the best result.
Examination via scanning electron microscopy found the composite containing 0.05 wt% calcium titanate showed the most homogeneous microstructure with minimal particle clustering — meaning even a very small amount can make a big difference when distributed correctly. When this optimized formulation was applied to metal surfaces via layer-by-layer deposition, uncoated samples showed severe corrosion, while coated samples showed no significant corrosion or surface degradation even after a full week immersed in saline solution.
What this study contributes is showing that a natural, biodegradable material (chitosan) can offer a genuine alternative to synthetic, environmentally harmful corrosion inhibitors. An everyday analogy: it's similar to a thin but effective bandage applied to a wound — rather than a thick, heavy layer, a thin protective coating with the right composition gives a far more effective result.
In the end, this research offers an environmentally friendly, effective anti-corrosion coating option for ship parts, marine structures, or metal components used in humid environments — carrying the potential to reduce both industrial cost and environmental impact.
Chitosan-based composite coatings modified with calcium titanate particles are examined for their microstructural characteristics and corrosion resistance. This study's goal was to prepare chitosan gels containing 0-2 wt% calcium titanate and determine how different filler levels affect coating homogeneity and corrosion resistance in a saline environment — in other words, to find which ratio gives the best result.
Examination via scanning electron microscopy found the composite containing 0.05 wt% calcium titanate showed the most homogeneous microstructure with minimal particle clustering — meaning even a very small amount can make a big difference when distributed correctly. When this optimized formulation was applied to metal surfaces via layer-by-layer deposition, uncoated samples showed severe corrosion, while coated samples showed no significant corrosion or surface degradation even after a full week immersed in saline solution.
What this study contributes is showing that a natural, biodegradable material (chitosan) can offer a genuine alternative to synthetic, environmentally harmful corrosion inhibitors. An everyday analogy: it's similar to a thin but effective bandage applied to a wound — rather than a thick, heavy layer, a thin protective coating with the right composition gives a far more effective result.
In the end, this research offers an environmentally friendly, effective anti-corrosion coating option for ship parts, marine structures, or metal components used in humid environments — carrying the potential to reduce both industrial cost and environmental impact.