Anti-corrosion properties of zinc: nanotubes and nanoparticles.

The scientists carried out a comparative study of the corrosion-resistant properties of zinc in nano-grade polyN-(vinyl) pyridine coatings.
In the case of ammonium xyne trimethyl bromide (CTAB) and polyethylene pyridoxine (PVP) as soft templates, polyN-(vinyl) pyridoxine (PNVPY) nanotubes (NTs) and nanoparticles (NPs) are prepared through UV-catalytic green chemical oxidation, respectively.
the chemical structure of the PNVPY nanostructure is indicated by FTIR spectra, UV-vis absorption spectra, and 1 H-NMR

. The shape of the PNVPY nanostructure is observed by scanning electron microscopes (SEMs) and transmission electron microscopes (TEMs).
results show that the outer diameter of PNVPY NTs is less than 200 nm and the length is micron. The average diameter of PNVPY NP is 30 nm. In addition, a series of anti-corrosion coatings on zinc were prepared by mixing the PNVPY and carbon black of the nanostructure with the polyethylene alcohol butyl (PVB) substation to study the effect of the shape of the PNVPY nanostructure on corrosion protection. The surface and cross-sectional shape of the corrosion-resistant coating are observed through an optical microscope and SEM.
better corrosion resistance
OCP), electrochemical impedance spectrum (EIS) and potential polarization measurements show that PNVPY NPs with a larger surface area and a smaller proportion have better corrosion resistance than PNVPY NTs in the coating. The possible anti-corrosion thertics of these anti-corrosion coatings are proposed.
the study has been published in Volume 136 of Progress in Organic Coatings.
.