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Synergistic effect of Ag and ZnO nanoparticles on polyaniline incorporated epoxy/2pack coatings for splash zone applications

  • Mohammad Asif AlamEmail author
  • Ubair Abdus Samad
  • El-Sayed M. Sherif
  • Asiful Seikh
  • Saeed M. Al-Zahrani
  • Nabeel H. Alharthi
  • Manawwar AlamEmail author
Article
  • 27 Downloads

Abstract

In this work, epoxy/2pack coatings containing polyaniline (PANI) in combination with Ag and ZnO nanoparticles have been synthesized. The nanoparticles were incorporated with bisphenol-A diglycidyl ether epoxy resin and polyamino-amide. The mechanical properties of the fabricated coatings, such as the pendulum hardness, scratch resistance, and impact strength, were studied. The composition of the fabricated coatings was confirmed by attenuated total reflectance infrared spectroscopy measurements. The thermal degradation and indentations were characterized through the use of differential scanning calorimetry and nano-indentation techniques, respectively. The surface morphology of the fabricated coatings was characterized using field-emission scanning electron microscopy. The synergistic effects of the Ag and ZnO nanoparticles on the corrosion resistance of the coatings after different exposure periods in 3.5% NaCl solutions were determined by electrochemical impedance spectroscopy. All the results were consistent with one another and confirmed that the addition of Ag and ZnO nanoparticles improved the mechanical properties of the coatings. This effect also led to a notable increase in the corrosion resistance of the PANI coatings.

Keywords

Epoxy coatings Polyaniline Nanoparticles Nano-indentation Corrosion resistance Surface morphology 

Notes

Acknowledgment

The authors would like to extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for its funding of this research through the Research Group Project No. RGP-160.

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Copyright information

© American Coatings Association 2018

Authors and Affiliations

  • Mohammad Asif Alam
    • 1
    Email author
  • Ubair Abdus Samad
    • 1
  • El-Sayed M. Sherif
    • 1
    • 2
  • Asiful Seikh
    • 1
  • Saeed M. Al-Zahrani
    • 1
    • 3
  • Nabeel H. Alharthi
    • 1
  • Manawwar Alam
    • 4
    Email author
  1. 1.Center of Excellence for Research in Engineering Materials (CEREM)King Saud UniversityRiyadhSaudi Arabia
  2. 2.Electrochemistry and Corrosion Laboratory, Department of Physical ChemistryNational Research CentreCairoEgypt
  3. 3.Chemical Engineering DepartmentKing Saud UniversityRiyadhSaudi Arabia
  4. 4.Department of Chemistry, College of ScienceKing Saud UniversityRiyadhSaudi Arabia

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