Improvement of corrosion protection of steel by incorporation of a new phosphonated fatty acid in a phosphorus-containing polymer coating obtained by UV curing
作者： France Millet , Rémi Auvergne , Sylvain Caillol , Ghislain David , Abdelatif Manseri
DOI: 10.1016/J.PORGCOAT.2013.10.002
关键词:
摘要: tSix formulations containing diacrylate monomers (from 89 to 92.5% (w/w)) as well a phosphonatedmethacrylate monomer 1 10% were prepared. All UV-cured and thecorrosion performance of the resulting coatings applied onto steel substrate was assessed by elec-trochemical impedance spectroscopy (EIS). It first shown that phosphonicacid methacrylate (MAPC1(OH)2) instead phosphonic dimethyl ester (MAPC1) presentedhigher corrosion protection related strong adhesive properties acid on metalsubstrate. A minimum MAPC1(OH)2content 2.5% determined provide highest impedancevalues (best efficiency). Then, new bio-based compound, i.e. acid-bearing oleic (phos-phonated fatty acid), synthesized added an inhibitor formulations. In presence ofthis notably improved. The beneficial effect phosphonatedfatty explained its inhibitive action at steel/coating interface improvement ofthe barrier properties.
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