Investigation Inhibition Properties of Volatile Atmospheric Corrosion Inhibitor Based on Natural Material
DOI:
https://doi.org/10.20535/1810-0546.2013.1.90672Abstract
The aim was to study the component composition of the volatile compounds of hops isopropanol extract and evaluation of physical and chemical properties of the new film on the metal surface. The volatiles extract of hope cones are analysed by Gas Chromatography Mass Spectrometry (GC–MS). Based on the data of the gas chromatography-mass spectrometry we identify the qualitative composition of the volatile compounds of the extract hops “Aromatic”. The main components are terpenoids, ketones, phenolic compounds, phenol and phenol carboxylic acid. Hope cones extract is developed as novel volatile corrosion inhibitors and can be used as solution and impregnated paper (VPI paper). We also study the effect of volatile compounds isopropanol extract of the kinetics of the partial electrode reactions. The experimental results show that the investigated extract, which can effectively retard the anodic dissolution of steel, are anodic inhibitors. We discover that the using volatile fractions of the hops extract as an inhibitor leads to formation of the film shifts of corrosion potential in the positive direction and significantly reduces the corrosion rate. The maximum increase in the hydrophobicity and the shift of the corrosion potential in the positive direction is observed after steel pre-treatment for 2 days in vapors of extract volatile compounds.References
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