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High protective performance coating for low carbon steel

 Last Update: 2020-11-05
 Source: Internet
 Author: User

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A high-protection coating is prepared by dispersing polyphenylamine (PANI) nanowires into an epoxy-modified acetaldehyde-acetone (EMFA) resin substitum and then curing with phenolic amines.
the protective properties of coatings are studied through impregnation experiments and electrochemical impedance spectrometrography (EIS) measurements in a 12% NaCl solution at 90 degrees C.
coating containing 1.0% PANI nanowires shows high impedance (> 1010 ohm.cm2) after 80 days of immersion, showing good protection

.
pure EMFA coating and EMFA/PANI coating have excellent flexibility and
X-ray photoelectronic energy spectrum (XPS) tests have confirmed the formation of passivation layers (Fe2O3 / Fe3O4) on steel surfaces under a 1.0% PANI coating. Bending tests have shown that both the pure EMFA coating and the EMFA/PANI coating show excellent flexibility of 2 mm.
here, measures of water absorption, bonding strength, pencil hardness and impact resistance to evaluate coating performance.
The study was published in Progress in Organic Coatings, volume 134, September 2019, pp. 48-57.

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