A Novel Electrospinning Application for Polyvinyl Chloride Nanofiber Coating Deposition as a Corrosion Inhibitor for Aluminum, Steel, and Brass in Chloride Solutions

Electrospinning is a unique technology that can produce nano-woven fibrous structures with fiber diameters ranging from tens of nanometers to microns. In this work the novel application of this technique as a coating process was investigated and presented. Thus, the electrospun polymer nanofiber coating of PVC was successfully deposited on aluminum, steel and brass. The coated samples were then tested to assess the corrosion properties and the characteristics of the coated surfaces in 3.5 wt.% NaCl solutions using cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS). The morphologies and the microstructures of the nanofiber coatings are characterized and assessed using scanning electron microscopy (SEM) and thermal degradation analysis (TGA). The nanofiber coatings were of diameters from 80 to 100 nm and lengths from 3 to 5 mu m and were compact and entangled with each other. This new promising success of the electrospinning process for coating is believed to have a big impact on corrosion and maintenance cost savings in the various industries.