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Synthesizing And Characterizing A Waterborne Polyaniline For Corrosion Protection Of Steels

Author

Listed:
  • TONGYAN PAN

    (Department of Civil, Architectural, and Environmental Engineering, Illinois Institute of Technology, 3201 S. Dearborn St., Chicago, IL 60616, United States)

  • QIFENG YU

    (Department of Civil, Architectural, and Environmental Engineering, Illinois Institute of Technology, 3201 S. Dearborn St., Chicago, IL 60616, United States)

  • TAO MIAO

    (Department of Civil, Architectural, and Environmental Engineering, Illinois Institute of Technology, 3201 S. Dearborn St., Chicago, IL 60616, United States)

Abstract

This study explores the idea of synthesizing and characterizing a new intrinsically conducting polyaniline that at the molecular level carries a hydrophilic component, making the polymer highly waterborne and thereby applicable to massive production for corrosion protection of steels. The waterborne polyaniline was mixed in a water-based epoxy and then coated on SAE 1008/1010 steel samples for evaluating its anti-corrosion capacity using a powerful surface-analysis tool, Scanning Kelvin Probe Force Microscopy (SKPFM). The high resolution surface topography and corrosion potential of steel samples coated with the Polyaniline-based primer, as studied by SKPFM, show significantly lower corrosion activities than two control groups: uncoated steel samples and epoxy-only coated samples that were also subjected to SKPFM analyses under the same corrosive condition. The surface analysis results indicate that this new waterborne polyaniline is capable of protecting steels from corrosion when mixed in conventional water-based epoxies, opening the door to the development of an economical and long-life coating for corrosion protection of steel structures.

Suggested Citation

  • Tongyan Pan & Qifeng Yu & Tao Miao, 2015. "Synthesizing And Characterizing A Waterborne Polyaniline For Corrosion Protection Of Steels," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 22(02), pages 1-11.
    • Handle: RePEc:wsi:srlxxx:v:22:y:2015:i:02:n:s0218625x15500213
    DOI: 10.1142/S0218625X15500213
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