Effect of ZrO2 Nanoparticles on the Mechanical and Anticorrosion Properties of epoxy Coating
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Date
2013Author
Panaite, Viorel
Mușat, Viorica
Boiciuc, SDimona
Istrate, Gina Genoveva
Radu, Tamara
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Homogeneous epoxy coatings containing ZrO2 nanoparticles were applied on
Grade A naval steel substrates. The morphology of the coating was characterized
by optical microscopy and scanning electron microscopy. The effect of
nanoparticles on the corrosion resistance of the hybrid coating was investigated by
potentiodynamic polarization method. ZrO2 (1wt. %) doping increased the
microhardness of coating up to 15%, from 12.5 (kgf/mm2) to 14.4 (kgf/mm2). The
coated steel samples were electrochemically monitorized over the 30 days of
immersion in 5 wt. % NaCl solution. As shown by the polarization resistance and
corrosion rate, the nanoparticles have a beneficial role, significantly improving the
corrosion resistance.
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- 2013 fascicula9 nr2 [14]