Anti-corrosion action of the extract of the larix sibiric barrus with different methods applying on the surface of metal

This article provides a method of the larch bark extract applying on a metal surface and also determining its anticorrosive protective action. It has been established that the protective effect of the larch bark extract was 37.5%, and when applying the extract after phosphoric acid, the protective e...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-08, Vol.320 (1), p.12039
Main Authors: Kuzmina, I E, Fedorova, A I
Format: Article
Language:English
Subjects:
Bark
Converters
Corrosion
Corrosion effects
Corrosion prevention
Iron phosphates
Metal surfaces
Phosphates
Phosphoric acid
Plant extracts
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Summary:This article provides a method of the larch bark extract applying on a metal surface and also determining its anticorrosive protective action. It has been established that the protective effect of the larch bark extract was 37.5%, and when applying the extract after phosphoric acid, the protective effect increases to 65%, since the formed iron phosphates, having a porous structure, are a good primer and increase the adhesion of the rust converter. The sequence of the solutions application was determined: firstly, phosphoric acid and only after that the extract of larch bark. This sequence of components application leads to an improvement of the anticorrosion characteristics of the studied extract: at the same time, the protective effect of the extract Z and the inhibiting factor of corrosion γ increase 1.7-1.8 times.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/320/1/012039