Abstract
Polyvinyl alcohol (PVA) was added to the phosphate solution to enhance its corrosion protection properties. The surface morphology and corrosion resistance of the coatings without and with PVA were studied by scanning electron microscope, X-ray diffraction, X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy and polarization technique. Results showed that addition of PVA to the phosphate solution reduced the grain size of the phosphate crystals. PVA increased the population density of the coating through increasing the nucleation sites. The inhibitory role of the PVA resulted in the decrease of the steel corrosion rate through formation of ZnP-PVA and Fe-PVA complexes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Taiwan Institute of Chemical Engineers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
